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Gebretsadkan AA, Belete YZ, Krounbi L, Gelfand I, Bernstein R, Gross A. Soil application of activated hydrochar derived from sewage sludge enhances plant growth and reduces nitrogen loss. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 949:174965. [PMID: 39067596 DOI: 10.1016/j.scitotenv.2024.174965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 07/15/2024] [Accepted: 07/20/2024] [Indexed: 07/30/2024]
Abstract
Sewage sludge treatment and disposal is a considerable environmental and economic burden, and is considered a major global challenge. Here, sewage sludge treatment and disposal were studied with a focus on hydrothermal carbonization and the use of hydrochar (HC) as a soil amendment after Fenton-reaction activation. The underlying hypothesis was that enhanced adsorption of nutrients (e.g., ammonium) by activated HC (AHC) increases their availability, thus enhancing plant growth and reducing environmental impacts such as greenhouse gas emission and N leaching relative to conventional soil-amendment techniques. The impact of AHC on lettuce plant growth, N leaching, ammonia volatilization, soil trace-gas emissions, and respiration was studied in a net-house planting experiment. Four treatments were tested in quadruplicate using sandy loam soil with addition of either AHC, urea fertilizer, or AHC plus urea, and a control with no amendment. Activation-induced changes in AHC surface properties (indicated by SEM and XPS analyses) resulted in an NH4+ adsorption capacity 60 % higher than that of untreated HC. The AHC + urea soil treatment yielded the most enhanced plant growth, followed by urea and AHC treatments with comparable growth rates. Least growth occurred in the control with no amendment. Nitrogen loss through gas emissions, per kg of lettuce, was lowest with AHC + urea treatment, although its mean N emission as nitrous oxide (N2O) was notably higher at 2.3 mg N2O-N kg-1 than for other treatments (∼0.4 mg N2O-N kg-1). Dissolved-N leaching was reduced by up to four times with AHC treatment due to its higher NH4+ adsorption capacity, indicating reduced environmental impact of the AHC amendment. AHC application is therefore considered a sustainable soil amendment, enhancing plant growth and reducing N loss and sewage environmental impact.
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Affiliation(s)
- Angesom Aregawi Gebretsadkan
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sde Boker campus, Midreshet Ben Gurion 8499000, Israel
| | - Yonas Zeslase Belete
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sde Boker campus, Midreshet Ben Gurion 8499000, Israel
| | - Leilah Krounbi
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sde Boker campus, Midreshet Ben Gurion 8499000, Israel
| | - Ilya Gelfand
- The French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sde Boker campus, Midreshet Ben Gurion 8499000, Israel.
| | - Roy Bernstein
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sde Boker campus, Midreshet Ben Gurion 8499000, Israel
| | - Amit Gross
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben Gurion University of the Negev, Sde Boker campus, Midreshet Ben Gurion 8499000, Israel.
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Švab Ž, Klančnik B, Kavšček M, Kosec G, Virant D. OneCarbonBio: industrial biotechnology 3.0. Trends Biotechnol 2024:S0167-7799(24)00181-1. [PMID: 39084950 DOI: 10.1016/j.tibtech.2024.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 07/11/2024] [Indexed: 08/02/2024]
Affiliation(s)
- Živa Švab
- Tehnološki Park 21, 1000 Ljubljana, Slovenia
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Li X, Zheng X, Yadav N, Saha S, Salama ES, Li X, Wang L, Jeon BH. Rational management of the plant microbiome for the Second Green Revolution. PLANT COMMUNICATIONS 2024; 5:100812. [PMID: 38213028 PMCID: PMC11009158 DOI: 10.1016/j.xplc.2024.100812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/06/2023] [Accepted: 01/05/2024] [Indexed: 01/13/2024]
Abstract
The Green Revolution of the mid-20th century transformed agriculture worldwide and has resulted in environmental challenges. A new approach, the Second Green Revolution, seeks to enhance agricultural productivity while minimizing negative environmental impacts. Plant microbiomes play critical roles in plant growth and stress responses, and understanding plant-microbiome interactions is essential for developing sustainable agricultural practices that meet food security and safety challenges, which are among the United Nations Sustainable Development Goals. This review provides a comprehensive exploration of key deterministic processes crucial for developing microbiome management strategies, including the host effect, the facilitator effect, and microbe-microbe interactions. A hierarchical framework for plant microbiome modulation is proposed to bridge the gap between basic research and agricultural applications. This framework emphasizes three levels of modulation: single-strain, synthetic community, and in situ microbiome modulation. Overall, rational management of plant microbiomes has wide-ranging applications in agriculture and can potentially be a core technology for the Second Green Revolution.
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Affiliation(s)
- Xiaofang Li
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
| | - Xin Zheng
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China
| | - Nikita Yadav
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Shouvik Saha
- Natural Resources Research Institute, University of Minnesota Duluth, Hermantown, MN 55811, USA; Department of Biotechnology, Brainware University, Barasat, Kolkata 700125, West Bengal, India
| | - El-Sayed Salama
- Department of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Xiangkai Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Science, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Likun Wang
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China.
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea.
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Novoa V, Rojas C, Rojas O, Ahumada-Rudolph R, Moreno-Santoyo R. A temporal analysis of the consequences of the drought regime on the water footprint of agriculture in the Guadalupe Valley, Mexico. Sci Rep 2024; 14:6114. [PMID: 38480739 PMCID: PMC10938006 DOI: 10.1038/s41598-024-56407-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 03/06/2024] [Indexed: 03/17/2024] Open
Abstract
Changes in water availability have a substantial impact on the sustainability and maintenance of agriculture, with water footprint (WF) being a robust methodology to assess these transformations. The Guadalupe Valley is one of the places with the highest agricultural production in Mexico. Despite its semi-arid climatic conditions, it provides high-quality crops that are well-positioned in the world. The historical trend of rainfall and temperatures between 1987 and 2017 was analyzed to identify climatic patterns in the territory. Through the calculations of the water footprint of Grapevine and Olive crops, the sensitivity of the crops to recurrent water deficit and their adaptation in their yields to drought episodes was identified. The reduction in precipitation and occurrence of extreme temperatures have contributed significantly towards augmenting crop evapotranspiration and, consequently, intensifying crop irrigation demands. As a result, there has been an apparent increase in the consumption of WFagricultural since 2007. Thus, the period of highest WFagricultural consumption was 2014 (Extremely dry), as opposed to 2011 (Very wet). In particular, the lowest WFgreen consumptions were observed in extremely dry years, that is, > 20% of the WFagricultural intensifying drought events. Therefore, these periods were compensated with higher uses of WFblue and WFgray, which are inversely correlated with precipitation, where vine crops consume 73% more WFagricultural compared to olive plantations, showing greater interannual variability. These results contribute to analyzing the temporal evolution of water consumption for agriculture, providing a basis for rational water use strategies.
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Affiliation(s)
- Vanessa Novoa
- Instituto de Alta Investigación, Universidad de Tarapacá, 18 de Septiembre 2222, Arica, Chile
| | - Carolina Rojas
- Facultad de Arquitectura, Diseño y Estudios Urbanos, Instituto de Estudios Urbanos y Territoriales, Instituto Milenio de Socio-Ecología Costera SECOS, Centro de Desarrollo Urbano Sustentable CEDEUS, Pontificia Universidad Católica de Chile, El Comendador 1916, Providencia, Santiago, Chile
| | - Octavio Rojas
- Departamento de Planificación Territorial y Sistemas Urbanos, Facultad de Ciencias Ambientales, Centro EULA, Universidad de Concepción, Víctor Lamas 1290, PO Box 160-C., Concepción, Chile
| | - Ramón Ahumada-Rudolph
- Laboratorio de Química Aplicada y Sustentable (LabQAS), Departamento de Química, Facultad de Ciencias, Universidad del Bío-Bío, Avenida Collao 1202, PO Box 5-C., 4051381, Concepción, Chile.
| | - Rebeca Moreno-Santoyo
- Facultad de Ciencias Marinas, Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Ensenada-Tijuana 3917, Ensenada, Baja California, Mexico
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Danial AW, Basset RA. Amelioration of NaCl stress on germination, growth, and nitrogen fixation of Vicia faba at isosmotic Na-Ca combinations and Rhizobium. PLANTA 2024; 259:69. [PMID: 38340188 PMCID: PMC10858841 DOI: 10.1007/s00425-024-04343-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/12/2024] [Indexed: 02/12/2024]
Abstract
MAIN CONCLUSION The Na+/Ca2+ ratio of 1/5 ameliorated the inhibitory action of NaCl and improved the germination and growth of Vicia faba. Addition of Rhizobium also enhanced nodulation and nitrogen fixation. Casting light upon the impact of salinity stress on growth and nitrogen fixation of Vicia faba supplemented with Rhizobium has been traced in this work. How Ca2+ antagonizes Na+ toxicity and osmotic stress of NaCl was also targeted in isosmotic combinations of NaCl and CaCl2 having various Na+:Ca2+ ratios. Growth of Vicia faba (cultivar Giza 3) was studied at two stages: germination and seedling. At both experiments, seeds or seedlings were exposed to successively increasing salinity levels (0, 50, 100, 150, and 200 mM NaCl) as well as isosmotic combinations of NaCl and CaCl2 (Na+:Ca2+ of 1:1, 1:5, 1:10, 1:15, 1:18, and 1: 20), equivalent to 150 mM NaCl. Inocula of the local nitrogen-fixing bacteria, Rhizobium leguminosarum (OP715892) were supplemented at both stages. NaCl salinity exerted a negative impact on growth and metabolism of Vicia faba; inhibition was proportional with increasing salinity level up to the highest level of 200 mM. Seed germination, shoot and root lengths, fresh and dry weights, chlorophyll content, and nodules (number, weight, leghemoglobin, respiration, and nitrogenase activity) were inhibited by salinity. Ca2+ substitution for Na+, particularly at a Na/Ca ratio of 1:5, was stimulatory to almost all parameters at both stages. Statistical correlations between salinity levels and Na/Ca combinations proved one of the four levels (strong- or weak positive, strong- or weak negative) with most of the investigated parameters, depending on the parameter.
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Affiliation(s)
- Amal W Danial
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt.
| | - Refat Abdel Basset
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt
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Novoa V, Rojas O, Ahumada-Rudolph R, Arumí JL, Munizaga J, de la Barrera F, Cabrera-Pardo JR, Rojas C. Water footprint and virtual water flows from the Global South: Foundations for sustainable agriculture in periods of drought. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 869:161526. [PMID: 36681330 DOI: 10.1016/j.scitotenv.2023.161526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 12/23/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Freshwater availability has decreased alarmingly worldwide, with agriculture playing a vital role in this trend. The assessment of the agricultural water footprint (WFagricultural) and virtual water flows (VWF) is fundamental not only in local water resources management and protection, but also in our understanding of the synergies between local water consumption and global markets. Thus, the WFagricultural - broken down into its components (blue, green, and gray) - of the leading 21 crops (grouped in fruit, legumes, cereals, and vegetables), grown in four basins with the most significant agricultural activity in central Chile was determined, estimated in two consecutive years 2017-2018. In addition, due to their great importance in exports, VWFs were assessed, establishing connections according to their origins and destinations. The results show that the green and gray water footprints increased significantly in the south-central basins, while blue water consumption increased in the basins of the central zone, reflecting an evident WFagricultural transition in accord with latitude and climate conditions. Furthermore, VWF showed an annual increase of 44 %, in about 116 destinations, with Asia, Europe, and North America being the preferred destinations, with annual variations of VWFblue- gray associated with increases in exports of apples, cherries, grapes, blueberries, and walnuts, market preferences and growing areas. The present study is an initial step toward sustainable agriculture in a commodity exporting country, one that is relevant in the exploitation of virtual water yet faces severe water deficit problems, distribution, and local water policies. Therefore, contributing to encouraging the efficiency and value of water in the process of a new institutional framework.
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Affiliation(s)
- Vanessa Novoa
- Departamento de Planificación Territorial y Sistemas Urbanos, Facultad de Ciencias Ambientales, Centro EULA, Universidad de Concepción, Víctor Lamas 1290, PO Box 160-C., Concepción, Chile.
| | - Octavio Rojas
- Departamento de Planificación Territorial y Sistemas Urbanos, Facultad de Ciencias Ambientales, Centro EULA, Universidad de Concepción, Víctor Lamas 1290, PO Box 160-C., Concepción, Chile.
| | - Ramón Ahumada-Rudolph
- Laboratorio de Química Aplicada y Sustentable (LabQAS), Departamento de Química, Facultad de Ciencias, Universidad del Bío-Bío, Avenida Collao 1202, PO Box 5-C., 4051381 Concepción, Chile.
| | - José Luis Arumí
- Departamento de Recursos Hídricos, Facultad de Ingeniería Agrícola, Centro de Recursos Hídricos para la Agricultura y la Minería CRHIAM, Universidad de Concepción, Vicente Méndez 595, Chillan, Chile.
| | - Juan Munizaga
- Departamento de Planificación Territorial y Sistemas Urbanos, Facultad de Ciencias Ambientales, Centro EULA, Universidad de Concepción, Víctor Lamas 1290, PO Box 160-C., Concepción, Chile.
| | - Francisco de la Barrera
- Departamento de Planificación Territorial y Sistemas Urbanos, Facultad de Ciencias Ambientales, Centro EULA, Universidad de Concepción, Víctor Lamas 1290, PO Box 160-C., Concepción, Chile; Centro de Desarrollo Urbano Sustentable CEDEUS, Universidad de Concepción, Víctor Lamas 1290, PO Box 160-C., Concepción, Chile.
| | - Jaime R Cabrera-Pardo
- Laboratorio de Química Aplicada y Sustentable, Departamento de Química, Facultad de Ciencias, Universidad de Tarapacá, 18 de Septiembre 2222, Arica, Chile.
| | - Carolina Rojas
- Instituto de Estudios Urbanos y Territoriales, Centro de Desarrollo Urbano Sustentable CEDEUS, Instituto Milenio de Socio-Ecología Costera SECOS, Pontificia Universidad Católica de Chile, El Comendador 1916, Providencia, Santiago, Chile.
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7
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Chatzimpiros P, Harchaoui S. Sevenfold variation in global feeding capacity depends on diets, land use and nitrogen management. NATURE FOOD 2023; 4:372-383. [PMID: 37117605 DOI: 10.1038/s43016-023-00741-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 03/14/2023] [Indexed: 04/30/2023]
Abstract
Harvested food carries a fraction of the nitrogen applied through fertilization; the remainder is typically lost into the environment, impairing planetary sustainability. Using a global agriculture model that integrates key drivers of food production and nitrogen cycling, we simulated upper bounds to global feeding capacity-and associated nitrogen pollution-as a function of nitrogen limitation under organic and industrial fertilization regimes. We found that the current agricultural area could feed ~8-20 billion people under unconstrained industrial fertilization and ca. 3-14 billion under organic fertilization. These ranges are inversely correlated with animal proteins in human diets, and are a function of feed-food competition, grassland-to-cropland allocation and-in the case of organic fertilization-nitrogen use efficiency. Improved nitrogen use efficiency is required to bring nitrogen pollution within planetary sustainability limits and is also essential in narrowing down food productivity gaps between organic and industrial fertilization regimes.
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Assa BG, Bhowmick A, Cholo BE. Modeling Nitrogen Balance for Pre-Assessment of Surface and Groundwater Nitrate (NO3-−N) Contamination from N–Fertilizer Application Loss: a Case of the Bilate Downstream Watershed Cropland. WATER, AIR, & SOIL POLLUTION 2023; 234:105. [DOI: https:/doi.org/10.1007/s11270-023-06114-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 01/18/2023] [Indexed: 03/09/2024]
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Karavidas I, Ntatsi G, Ntanasi T, Tampakaki A, Giannopoulou A, Pantazopoulou D, Sabatino L, Iannetta PPM, Savvas D. Hydroponic Common-Bean Performance under Reduced N-Supply Level and Rhizobia Application. PLANTS (BASEL, SWITZERLAND) 2023; 12:646. [PMID: 36771728 PMCID: PMC9920343 DOI: 10.3390/plants12030646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/26/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
This study aims to explore the possibility of a reduced application of inorganic nitrogen (N) fertiliser on the yield, yield qualities, and biological nitrogen fixation (BNF) of the hydroponic common bean (Phaseolus vulgaris L.), without compromising plant performance, by utilizing the inherent ability of this plant to symbiotically fix N2. Until the flowering stage, plants were supplied with a nutrient solution containing N-concentrations of either a, 100%, conventional standard-practice, 13.8 mM; b, 75% of the standard, 10.35 mM; or c, 50% of the standard, 6.9 mM. During the subsequent reproductive stage, inorganic-N treatments b and c were decreased to 25% of the standard, and the standard (100% level) N-application was not altered. The three different inorganic-N supply treatments were combined with two different rhizobia strains, and a control (no-inoculation) treatment, in a two-factorial experiment. The rhizobia strains applied were either the indigenous strain Rhizobium sophoriradicis PVTN21 or the commercially supplied Rhizobium tropici CIAT 899. Results showed that the 50-25% mineral-N application regime led to significant increases in nodulation, BNF, and fresh-pod yield, compared to the other treatment, with a reduced inorganic-N supply. On the other hand, the 75-25% mineral-N regime applied during the vegetative stage restricted nodulation and BNF, thus incurring significant yield losses. Both rhizobia strains stimulated nodulation and BNF. However, the BNF capacity they facilitated was suppressed as the inorganic-N input increased. In addition, strain PVTN21 was superior to CIAT 899-as 50-25% N-treated plants inoculated with the former showed a yield loss of 11%, compared to the 100%-N-treated plants. In conclusion, N-use efficiency optimises BNF, reduces mineral-N-input dependency, and therefore may reduce any consequential negative environmental consequences of mineral-N over-application.
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Affiliation(s)
- Ioannis Karavidas
- Laboratory of Vegetable Production, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Georgia Ntatsi
- Laboratory of Vegetable Production, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Theodora Ntanasi
- Laboratory of Vegetable Production, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Anastasia Tampakaki
- Department of Agriculture, Hellenic Mediterranean University, Estavromenos, 71410 Heraklion, Greece
| | - Ariadni Giannopoulou
- Laboratory of Vegetable Production, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Dimitra Pantazopoulou
- Laboratory of Vegetable Production, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Leo Sabatino
- Department of Agricultural, Food and Forest Sciences, University of Palermo, 90128 Palermo, Italy
| | | | - Dimitrios Savvas
- Laboratory of Vegetable Production, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
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Raza T, Abbas M, Amna, Imran S, Khan MY, Rebi A, Rafie-Rad Z, Eash NS. Impact of Silicon on Plant Nutrition and Significance of Silicon Mobilizing Bacteria in Agronomic Practices. SILICON 2023; 15:3797-3817. [PMCID: PMC9876760 DOI: 10.1007/s12633-023-02302-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 01/13/2023] [Indexed: 08/01/2023]
Abstract
Globally, rejuvenation of soil health is a major concern due to the continuous loss of soil fertility and productivity. Soil degradation decreases crop yields and threatens global food security. Improper use of chemical fertilizers coupled with intensive cultivation further reduces both soil health and crop yields. Plants require several nutrients in varying ratios that are essential for the plant to complete a healthy growth and development cycle. Soil, water, and air are the sources of these essential macro- and micro-nutrients needed to complete plant vegetative and reproductive cycles. Among the essential macro-nutrients, nitrogen (N) plays a significant in non-legume species and without sufficient plant access to N lower yields result. While silicon (Si) is the 2nd most abundant element in the Earth’s crust and is the backbone of soil silicate minerals, it is an essential micro-nutrient for some plants. Silicon is just beginning to be recognized as an important micronutrient to some plant species and, while it is quite abundant, Si is often not readily available for plant uptake. The manufacturing cost of synthetic silica-based fertilizers is high, while absorption of silica is quite slow in soil for many plants. Rhizosphere biological weathering processes includes microbial solubilization processes that increase the dissolution of minerals and increases Si availability for plant uptake. Therefore, an important strategy to improve plant silicon uptake could be field application of Si-solubilizing bacteria. In this review, we evaluate the role of Si in seed germination, growth, and morphological development and crop yield under various biotic and abiotic stresses, different pools and fluxes of silicon (Si) in soil, and the bacterial genera of the silicon solubilizing microorganisms. We also elaborate on the detailed mechanisms of Si-solubilizing/mobilizing bacteria involved in silicate dissolution and uptake by a plant in soil. Last, we discuss the potential of silicon and silicon solubilizing/mobilizing to achieve environmentally friendly and sustainable crop production.
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Affiliation(s)
- Taqi Raza
- Department of Biosystems Engineering & Soil Science, University of Tennessee, Knoxville, USA
| | | | - Amna
- Department of Plant Sciences, Quaid-I-Azam University Islamabad, Islamabad, Pakistan
| | - Shakeel Imran
- UAF Sub Campus Burewala, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Yahya Khan
- UAF Sub Campus Burewala, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Ansa Rebi
- Jianshui Research Station, School of Soil and Water Conservation, Beijing Forestry University, Beijing, 100083 China
| | - Zeinab Rafie-Rad
- Department of Soil Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
| | - Neal S. Eash
- Department of Biosystems Engineering & Soil Science, University of Tennessee, Knoxville, USA
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Tamagno S, Pittelkow CM, Fohner G, Nelsen TS, Hegarty JM, Carter CE, Vang T, Lundy ME. Optimizing water and nitrogen productivity of wheat and triticale across diverse production environments to improve the sustainability of baked products. FRONTIERS IN PLANT SCIENCE 2022; 13:952303. [PMID: 36161023 PMCID: PMC9491324 DOI: 10.3389/fpls.2022.952303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/08/2022] [Indexed: 06/16/2023]
Abstract
Wheat (Triticum aestivum L.) is a major global commodity and the primary source for baked products in agri-food supply chains. Consumers are increasingly demanding more nutritious food products with less environmental degradation, particularly related to water and fertilizer nitrogen (N) inputs. While triticale (× Triticosecale) is often referenced as having superior abiotic stress tolerance compared to wheat, few studies have compared crop productivity and resource use efficiencies under a range of N-and water-limited conditions. Because previous work has shown that blending wheat with triticale in a 40:60 ratio can yield acceptable and more nutritious baked products, we tested the hypothesis that increasing the use of triticale grain in the baking supply chain would reduce the environmental footprint for water and N fertilizer use. Using a dataset comprised of 37 site-years encompassing normal and stress-induced environments in California, we assessed yield, yield stability, and the efficiency of water and fertilizer N use for 67 and 17 commercial varieties of wheat and triticale, respectively. By identifying environments that favor one crop type over the other, we then quantified the sustainability implications of producing a mixed triticale-wheat flour at the regional scale. Results indicate that triticale outyielded wheat by 11% (p < 0.05) and 19% (p < 0.05) under average and N-limited conditions, respectively. However, wheat was 3% (p < 0.05) more productive in water-limited environments. Overall, triticale had greater yield stability and produced more grain per unit of water and N fertilizer inputs, especially in high-yielding environments. We estimate these differences could translate to regional N fertilizer savings (up to 555 Mg N or 166 CO2-eq kg ha-1) in a 40:60 blending scenario when wheat is sourced from water-limited and low-yielding fields and triticale from N-limited and high-yielding areas. Results suggest that optimizing the agronomic and environmental benefits of triticale would increase the overall resource use efficiency and sustainability of the agri-food system, although such a transition would require fundamental changes to the current system spanning producers, processors, and consumers.
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Affiliation(s)
- Santiago Tamagno
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | - Cameron M. Pittelkow
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | - George Fohner
- California Grain Foundation, Woodland, CA, United States
| | - Taylor S. Nelsen
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | - Joshua M. Hegarty
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
| | | | - Teng Vang
- California Wheat Commission, Woodland, CA, United States
| | - Mark E. Lundy
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
- Division of Agriculture and Natural Resources, University of California, Davis, Davis, CA, United States
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Dobermann A, Bruulsema T, Cakmak I, Gerard B, Majumdar K, McLaughlin M, Reidsma P, Vanlauwe B, Wollenberg L, Zhang F, Zhang X. Responsible plant nutrition: A new paradigm to support food system transformation. GLOBAL FOOD SECURITY 2022. [DOI: 10.1016/j.gfs.2022.100636] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Elli EF, Ciampitti IA, Castellano MJ, Purcell LC, Naeve S, Grassini P, La Menza NC, Moro Rosso L, de Borja Reis AF, Kovács P, Archontoulis SV. Climate Change and Management Impacts on Soybean N Fixation, Soil N Mineralization, N 2O Emissions, and Seed Yield. FRONTIERS IN PLANT SCIENCE 2022; 13:849896. [PMID: 35574134 PMCID: PMC9094616 DOI: 10.3389/fpls.2022.849896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/25/2022] [Indexed: 05/28/2023]
Abstract
Limited knowledge about how nitrogen (N) dynamics are affected by climate change, weather variability, and crop management is a major barrier to improving the productivity and environmental performance of soybean-based cropping systems. To fill this knowledge gap, we created a systems understanding of agroecosystem N dynamics and quantified the impact of controllable (management) and uncontrollable (weather, climate) factors on N fluxes and soybean yields. We performed a simulation experiment across 10 soybean production environments in the United States using the Agricultural Production Systems sIMulator (APSIM) model and future climate projections from five global circulation models. Climate change (2020-2080) increased N mineralization (24%) and N2O emissions (19%) but decreased N fixation (32%), seed N (20%), and yields (19%). Soil and crop management practices altered N fluxes at a similar magnitude as climate change but in many different directions, revealing opportunities to improve soybean systems' performance. Among many practices explored, we identified two solutions with great potential: improved residue management (short-term) and water management (long-term). Inter-annual weather variability and management practices affected soybean yield less than N fluxes, which creates opportunities to manage N fluxes without compromising yields, especially in regions with adequate to excess soil moisture. This work provides actionable results (tradeoffs, synergies, directions) to inform decision-making for adapting crop management in a changing climate to improve soybean production systems.
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Affiliation(s)
- Elvis F. Elli
- Department of Agronomy, Iowa State University, Ames, IA, United States
| | | | | | - Larry C. Purcell
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR, United States
| | - Seth Naeve
- Department of Agronomy and Plant Genetics, University of Minnesota, Saint Paul, MN, United States
| | - Patricio Grassini
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Nicolas C. La Menza
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Luiz Moro Rosso
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
| | | | - Péter Kovács
- Department of Agronomy, Horticulture, and Plant Science, South Dakota State University, Brookings, SD, United States
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van Grinsven HJM, Ebanyat P, Glendining M, Gu B, Hijbeek R, Lam SK, Lassaletta L, Mueller ND, Pacheco FS, Quemada M, Bruulsema TW, Jacobsen BH, Ten Berge HFM. Establishing long-term nitrogen response of global cereals to assess sustainable fertilizer rates. NATURE FOOD 2022; 3:122-132. [PMID: 37117954 PMCID: PMC10661743 DOI: 10.1038/s43016-021-00447-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/01/2021] [Indexed: 11/09/2022]
Abstract
Insight into the response of cereal yields to nitrogen fertilizer is fundamental to improving nutrient management and policies to sustain economic crop benefits and food sufficiency with minimum nitrogen pollution. Here we propose a new method to assess long-term (LT) regional sustainable nitrogen inputs. The core is a novel scaled response function between normalized yield and total net nitrogen input. The function was derived from 25 LT field trials for wheat, maize and barley in Europe, Asia and North America and is fitted by a second-order polynomial (R2 = 0.82). Using response functions derived from common short-term field trials, with soil nitrogen not in steady state, gives the risks of soil nitrogen depletion or nitrogen pollution. The scaled LT curve implies that the total nitrogen input required to attain the maximum yield is independent of this maximum yield as postulated by Mitscherlich in 1924. This unique curve was incorporated into a simple economic model with valuation of externalities of nitrogen surplus as a function of regional per-capita gross domestic product. The resulting LT sustainable nitrogen inputs range from 150 to 200 kgN ha-1 and this interval narrows with increasing yield potential and decreasing gross domestic product. The adoption of LT response curves and external costs in cereals may have important implications for policies and application ceilings for nitrogen use in regional and global agriculture and ultimately the global distribution of cereal production.
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Affiliation(s)
- Hans J M van Grinsven
- Department of Water, Agriculture and Food, PBL Netherlands Environmental Assessment Agency, The Hague, Netherlands.
| | - Peter Ebanyat
- Department of Agricultural Production, School of Agricultural Sciences, Makerere University, Kampala, Uganda
| | - Margaret Glendining
- Department of Computational and Analytical Sciences (CAS), Rothamsted Research, Harpenden, UK
| | - Baojing Gu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, PR China
| | - Renske Hijbeek
- Plant Production Systems Group, Wageningen University, Wageningen, Netherlands
| | - Shu Kee Lam
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Luis Lassaletta
- Department Agricultural Production/CEIGRAM, Universidad Politécnica de Madrid, Madrid, Spain
| | - Nathaniel D Mueller
- Department of Ecosystem Science and Sustainability, Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA
| | - Felipe S Pacheco
- National Institute for Space Research (INPE), Earth System Science Center, São José dos Campos, Brazil
| | - Miguel Quemada
- Department Agricultural Production/CEIGRAM, Universidad Politécnica de Madrid, Madrid, Spain
| | | | - Brian H Jacobsen
- University of Copenhagen, Department of Food and Resource Economics (IFRO), Copenhagen, Denmark
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Combination of Inorganic Nitrogen and Organic Soil Amendment Improves Nitrogen Use Efficiency While Reducing Nitrogen Runoff. NITROGEN 2022. [DOI: 10.3390/nitrogen3010004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Improved nitrogen fertiliser management and increased nitrogen use efficiency (NUE) can be achieved by synchronising nitrogen (N) availability with plant uptake requirements. Organic materials in conjunction with inorganic fertilisers provide a strategy for supplying plant-available N over the growing season and reducing N loss. This study investigated whether a combined application of inorganic N with an organic soil amendment could improve nitrogen use efficiency by reducing N loss in runoff. Nitrogen runoff from a ryegrass (Lolium multiflorum) cover was investigated using a rainfall simulator. Nitrogen was applied at low, medium and high (50, 75 and 100 kg/ha) rates as either (NH4)2SO4 or in combination with a poultry manure-based organic material. We showed that the NUE in the combination (58–75%) was two-fold greater than in (NH4)2SO4 (24–42%). Furthermore, this combination also resulted in a two-fold lower N runoff compared with the inorganic fertiliser alone. This effect was attributed to the slower rate of N release from the organic amendment relative to the inorganic fertiliser. Here, we demonstrated that the combined use of inorganic and organic N substrates can reduce nutrient losses in surface runoff due to a better synchronisation of N availability with plant uptake requirements.
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Andersson E. The role of science in finding solutions to wicked, systemic problems : This article belongs to Ambio's 50th Anniversary Collection. Theme: Solutions-oriented research. AMBIO 2022; 51:1-8. [PMID: 33715094 PMCID: PMC8651850 DOI: 10.1007/s13280-021-01525-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
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