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Wu B, Cui Z, Zechariah E, Guo L, Gao Y, Yan B, Liu H, Wang Y, Wang H, Li L. Post-anthesis dry matter and nitrogen accumulation, partitioning, and translocation in maize under different nitrate-ammonium ratios in Northwestern China. FRONTIERS IN PLANT SCIENCE 2024; 15:1257882. [PMID: 38567136 PMCID: PMC10985316 DOI: 10.3389/fpls.2024.1257882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 02/26/2024] [Indexed: 04/04/2024]
Abstract
Introduction An appropriate supply of ammonium (NH4+) in addition to nitrate (NO3-) can greatly improve plant growth and promote maize productivity. However, knowledge gaps exist regarding the mechanisms by which different nitrogen (N) fertilizer sources affect the enzymatic activity of nitrogen metabolism and non-structural carbohydrates during the post-anthesis period. Methods A field experiment across 3-year was carried out to explore the effects of four nitrateammonium ratio (NO3-/NH4+ = 1:0 (N1), 1:1 (N2), 1:3 (N3), and 3:1 (N4)) on postanthesis dry matter (DM) and N accumulation, partitioning, transportation, and grain yield in maize. Results NO3-/NH4+ ratio with 3:1 improved the enzymatic activity of N metabolism and non-structural carbohydrate accumulation, which strongly promoted the transfer of DM and N in vegetative organs to reproductive organs and improved the pre-anthesis DM and nitrogen translocation efficiency. The enzymatic activities of nitrate reductase, nitrite reductase, glutamine synthetase, glutamine oxoglutarate aminotransferase, and non-structural carbohydrate accumulation under N4 treatment were increased by 9.30%-32.82%, 13.19%-37.94%, 4.11%-16.00%, 11.19%-30.82%, and 14.89%-31.71% compared with the other treatments. Mixed NO3--N and NH4+-N increased the total DM accumulation at the anthesis and maturity stages, simultaneously decreasing the DM partitioning of stem, increasing total DM, DM translocation efficiency (DMtE), and contribution of pre-anthesis assimilates to the grain (CAPG) in 2015 and 2017, promoting the transfer of DM from stem to grain. Furthermore, the grain yield increased by 3.31%-9.94% (2015), 68.6%-26.30% (2016), and 8.292%-36.08% (2017) under the N4 treatment compared to the N1, N2, and N3 treatments. Conclusion The study showed that a NO3-/NH4+ ratio of 3:1 is recommended for high-yield and sustainable maize management strategies in Northwestern China.
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Affiliation(s)
- Bing Wu
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
- State Key Laboratory of Aridland Crop Science, Lanzhou, China
| | - Zhengjun Cui
- State Key Laboratory of Aridland Crop Science, Lanzhou, China
- College of Agronomy, Tarim University, Alar, China
| | - Effah Zechariah
- Council of Scientific and Industrial Research (CSIR)-Plant Genetic Resources Research Institute, Bunso, Ghana
| | - Lizhuo Guo
- State Key Laboratory of Aridland Crop Science, Lanzhou, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Yuhong Gao
- State Key Laboratory of Aridland Crop Science, Lanzhou, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Bin Yan
- State Key Laboratory of Aridland Crop Science, Lanzhou, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Hongsheng Liu
- Huining Promotion Center of Agricultural Technology, Huinning, China
| | - Yifan Wang
- State Key Laboratory of Aridland Crop Science, Lanzhou, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Haidi Wang
- State Key Laboratory of Aridland Crop Science, Lanzhou, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Li Li
- Baiyin Promotion Center of Agricultural Technology, Baiyin, China
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Assadi NM, Bijanzadeh E. Influence of relay intercropping of barley with chickpea on biochemical characteristics and yield under water stress. PLoS One 2023; 18:e0273272. [PMID: 37289819 PMCID: PMC10249810 DOI: 10.1371/journal.pone.0273272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 05/24/2023] [Indexed: 06/10/2023] Open
Abstract
Relay intercropping of legumes with cereals is a useful technique for yield increment. Intercropping may affect the photosynthetic pigments, enzyme activity and yield of barley and chickpea under water stress. To investigate the effect of relay intercropping of barley with chickpea on pigment content, enzyme activity and yield under water stress, a field experiment was conducted during 2017 and 2018. The treatments included irrigation regimes (normal irrigation and cutting off irrigation at the milk development stage) as the main plot. Also, cropping systems as sub plot consisted of sole and relay intercropping of barley with chickpea in two sowing dates (December vs January). Under water stress, the early establishment of barley in December intercropped with chickpea in January (b1c2) enhanced the leaf chlorophyll content by 16% compared to sole cropping due to less competition with chickpea. Late sowing of chickpea enhanced the leaf carotenoid content of chickpea, catalase and peroxidase activities. Barley-chickpea intercropping enhanced the WUE and guaranteed a more efficient use of space (land equivalent ratio of more than 1) compared with sole crops. Under water stress, in b1c2 enhancement of total chlorophyll and water use efficiency caused to increase the grain yield of barley. In b1c2, barley and chickpea reacted to water stress with increasing total chlorophyll and enzyme activity, respectively. In this relay intercropping treatment, each crop occupied and used the growth resources from different ecological niches at different times, which is recommended in semi-arid areas.
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Affiliation(s)
- Negin Mohavieh Assadi
- Former Graduate Student of Agroecology Department, College of Agriculture and Natural Resources of Darab, Shiraz University, Shiraz, Iran
| | - Ehsan Bijanzadeh
- Associate Professor of Agroecology Department, College of Agriculture and Natural Resources of Darab, Shiraz University, Shiraz, Iran
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Dung TV, Ngoc NP, Dang LV, Hung NN. Impact of cover crop and mulching on soil physical properties and soil nutrients in a citrus orchard. PeerJ 2022; 10:e14170. [PMID: 36217383 PMCID: PMC9547584 DOI: 10.7717/peerj.14170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 09/12/2022] [Indexed: 01/21/2023] Open
Abstract
Background Cover crops and mulching can ameliorate soil porosity and nutrient availability, but their effects on the physical characteristics and nutrients in the raised bed soils are unclear. Methods The field experiment was conducted in a pomelo orchard from 2019 to 2021, with an area of 1,500 m2. The treatments included control (no cover crop), non-legume cover crop (Commelina communis L.), legume cover crop (Arachis pintoi Krabov & W.C. Gregory), and rice straw mulching (Oryza sativa L.). At the end of each year (2019, 2020, and 2021), soil samples were collected at four different layers (0-10, 10-20, 20-30, and 30-40 cm) in each treatment. Soil bulk density, soil porosity, and the concentration of nutrients in the soil were investigated. Results The results revealed that soil bulk density at two depths, 0-10 and 10-20 cm, was reduced by 0.07 and 0.08 g cm-3 by rice straw mulch and a leguminous cover crop, thus, increasing soil porosity by ~2.74% and ~3.01%, respectively. Soil nutrients (Ca, K, Fe, and Zn) at topsoil (0-10 cm) and subsoil (10-20 cm) layers were not significantly different in the first year, but those nutrients (Ca, K, Fe, and Zn) improved greatly in the second and third years. Conclusions Legume cover crops and straw mulch enhanced soil porosity and plant nutrient availability (Ca, K, Fe, and Zn). These conservation practices best benefit fruit orchards cultivated in the raised bed soils.
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Affiliation(s)
- Tran Van Dung
- Soil Science Department, College of Agriculture, Can Tho University, Can Tho, Viet Nam
| | - Ngo Phuong Ngoc
- Department of Plant Physiology-Biochemistry, College of Agriculture, Can Tho University, Can Tho, Viet Nam
| | - Le Van Dang
- Soil Science Department, College of Agriculture, Can Tho University, Can Tho, Viet Nam
| | - Ngo Ngoc Hung
- Soil Science Department, College of Agriculture, Can Tho University, Can Tho, Viet Nam
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Varatharajan T, Dass A, Choudhary AK, Sudhishri S, Pooniya V, Das TK, Rajanna GA, Prasad S, Swarnalakshmi K, Harish MN, Dhar S, Singh R, Raj R, Kumari K, Singh A, Sachin KS, Kumar P. Integrated management enhances crop physiology and final yield in maize intercropped with blackgram in semiarid South Asia. FRONTIERS IN PLANT SCIENCE 2022; 13:975569. [PMID: 36212325 PMCID: PMC9538492 DOI: 10.3389/fpls.2022.975569] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/31/2022] [Indexed: 06/16/2023]
Abstract
Photosynthesis, crop health and dry matter partitioning are among the most important factors influencing crop productivity and quality. Identifying variation in these parameters may help discover the plausible causes for crop productivity differences under various management practices and cropping systems. Thus, a 2-year (2019-2020) study was undertaken to investigate how far the integrated crop management (ICM) modules and cropping systems affect maize physiology, photosynthetic characteristics, crop vigour and productivity in a holistic manner. The treatments included nine main-plot ICM treatments [ICM1 to ICM4 - conventional tillage (CT)-based; ICM5 to ICM8 - conservation agriculture (CA)-based; ICM9 - organic agriculture (OA)-based] and two cropping systems, viz., maize-wheat and maize + blackgram-wheat in subplots. The CA-based ICM module, ICM7 resulted in significant (p < 0.05) improvements in the physiological parameters, viz., photosynthetic rate (42.56 μ mol CO2 m-2 sec-1), transpiration rate (9.88 m mol H2O m-2 sec-1) and net assimilation rate (NAR) (2.81 mg cm-2 day-1), crop vigour [NDVI (0.78), chlorophyll content (53.0)], dry matter partitioning toward grain and finally increased maize crop productivity (6.66 t ha-1) by 13.4-14.2 and 27.3-28.0% over CT- and OA-based modules. For maize equivalent grain yield (MEGY), the ICM modules followed the trend as ICM7 > ICM8 > ICM5 > ICM6 > ICM3 > ICM4 > ICM1 > ICM2 > ICM9. Multivariate and PCA analyses also revealed a positive correlation between physiological parameters, barring NAR and both grain and stover yields. Our study proposes an explanation for improved productivity of blackgram-intercropped maize under CA-based ICM management through significant improvements in physiological and photosynthetic characteristics and crop vigour. Overall, the CA-based ICM module ICM7 coupled with the maize + blackgram intercropping system could be suggested for wider adoption to enhance the maize production in semiarid regions of India and similar agroecologies across the globe.
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Affiliation(s)
- T. Varatharajan
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - Anchal Dass
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - Anil K. Choudhary
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
- Central Potato Research Institute, Indian Council of Agricultural Research, Shimla, India
| | - S. Sudhishri
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - V. Pooniya
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - T. K. Das
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - G. A. Rajanna
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
- Directorate of Groundnut Research, Indian Council of Agricultural Research, Ananthapur, India
| | - Shiv Prasad
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | | | - M. N. Harish
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
- Farm Science Centre, Indian Institute of Horticultural Research, Indian Council of Agricultural Research, Gonikoppal, India
| | - Shiva Dhar
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - Raj Singh
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - Rishi Raj
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - Kavita Kumari
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - Arjun Singh
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
- National Research Centre for Banana, Indian Council of Agricultural Research, Tiruchirappalli, India
| | - K. S. Sachin
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
| | - Pramod Kumar
- Indian Agricultural Research Institute, Indian Council of Agricultural Research, New Delhi, India
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