ArticleFrontiers in plant science2022
Maize-soybean intercropping at optimal N fertilization increases the N uptake, N yield and N use efficiency of maize crop by regulating the N assimilatory enzymes.
Article in Frontiers in plant science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 56 citations in OpenAlex.
- Optimizing Row Ratio Configurations for Enhanced Productivity and Resource-Use Efficiency in Maize-Alfalfa Intercropping.Plants (Basel, Switzerland) · 2025Article
- Impact of the Nitrogen on Nutrient Dynamics in Soybean-Grass Intercropping in a Degraded Pasture Area.Plants (Basel, Switzerland) · 2025Article
- Indica-Japonica rice intercropping enhances rice productivity by efficiently utilizing the resources.BMC plant biology · 2025Article
- Exogenous Melatonin Application Improves Shade Tolerance and Growth Performance of Soybean Under Maize-Soybean Intercropping Systems.Plants (Basel, Switzerland) · 2025Article
- Effects of Nitrogen Application Rate on Nitrogen Uptake and Utilization in Waxy Sorghum Under Waxy Sorghum-Soybean Intercropping Systems.Plants (Basel, Switzerland) · 2025Article
- Niche-specific maize microbiomes enhance productivity and nitrogen uptake under intercropping.Frontiers in microbiology · 2025Article
- Organic material mulching regulated core microbial groups to promote soil carbon and nitrogen cycling and improve faba bean productivity under a triple-cropping system in purple soil hilly region of southwest China.Frontiers in microbiology · 2025Article
- Macrogenomics-Based Analysis of the Effects of Intercropped Soybean Photosynthetic Characteristics and Nitrogen-Assimilating Enzyme Activities on Yield at Different Nitrogen Levels.Microorganisms · 2024Article
- Managing faba bean wilt disease through intercropping with wheat and reasonable nitrogen application: enhancing nutrient absorption and biochemical resistance in faba beans.Physiology and molecular biology of plants : an international journal of functional plant biology · 2024Article
- Maize/soybean intercropping increases nutrient uptake, crop yield and modifies soil physio-chemical characteristics and enzymatic activities in the subtropical humid region based in Southwest China.BMC plant biology · 2024Article
- Enhancing production efficiency through optimizing plant density in maize-soybean strip intercropping.Frontiers in plant science · 2024Article
- Application fruit tree hole storage brick fertilizer is beneficial to increase the nitrogen utilization of grape under subsurface drip irrigation.Frontiers in plant science · 2023Article
- Assessing the impact of biochar and nitrogen application on yield, water-nitrogen use efficiency and quality of intercropped maize and soybean.Frontiers in plant science · 2023Article
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14 authors at 7 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
Introduction: Surplus use of chemical nitrogen (N) fertilizers to increase agricultural Q9 production causes severe problems to the agricultural ecosystem and environment. This is contrary to N use efficiency and sustainable agricultural production. Methods: Hence, this study was designed to investigate the effect of maizesoybean intercropping on N uptake, N yield, N utilization use efficiency, and the associated nitrogen assimilatory enzymes of maize crops under different N fertilization for two consecutive years 2021-2022. Results: The findings of the study showed that intercropping at the optimal N rate (N1) (250 kg N ha-1) increased significantly maize grain yield by 30 and 34%, residue yield by 30 and 37%, and 100-grain weight by 33 and 39% in the year 2021 and 2022, respectively. As compared with mono-cropping, at this optimal N rate, the respective increase (of maize's crop N yield indices) for 2021 and 2022 were 53 and 64% for grain N yield, and 53 and 68% for residue N yield. Moreover, intercropping at N1 resulted in higher grain N content by 28 and 31%, residue N content by 18 and 22%, and total N uptake by 65 and 75% in 2021 and 2022, respectively. The values for the land equivalent ratio for nitrogen yield (LERN) were greater than 1 in intercropping, indicating better utilization of N under the intercropping over mono-cropping. Similarly, intercropping increased the N assimilatory enzymes of maize crops such as nitrate reductase (NR) activity by 19 and 25%, nitrite reductase (NiR) activity by 20 and 23%, and glutamate synthase activity (GOGAT) by 23 and 27% in 2021 and 2022, respectively. Consequently, such increases resulted in improved nitrogen use efficiency indices such as N use efficiency (NUE), partial factor nitrogen use efficiency (PFNUE), nitrogen uptake efficiency (NUpE), and nitrogen agronomic efficiency (NAE) under intercropping than mono-cropping. Conclusion: Thus, this suggests that maize-soybean intercropping under optimal N fertilization can improve the nitrogen status and nitrogen use efficiency of maize crops by regulating the nitrogen assimilatory enzymes, thereby enhancing its growth and yield. Therefore, prioritizing intercropping over an intensive mono-cropping system could be a better option for sustainable agricultural production.
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