首页|Integrating phosphorus management and cropping technology for sustainable maize production

Integrating phosphorus management and cropping technology for sustainable maize production

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  • 国家科技期刊平台
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Achieving high maize yields and efficient phosphorus(P)use with limited environmental impacts is one of the greatest challenges in sustainable maize production.Increasing plant density is considered an effective approach for achieving high maize yields.However,the low mobility of P in soils and the scarcity of natural P resources have hindered the development of methods that can simultaneously optimize P use and mitigate the P-related environmental footprint at high plant densities.In this study,meta-analysis and substance flow analysis were conducted to evaluate the effects of different types of mineral P fertilizer on maize yield at varying plant densities and assess the flow of P from rock phosphate mining to P fertilizer use for maize production in China.A significantly higher yield was obtained at higher plant densities than at lower plant densities.The application of single super-phosphate,triple super-phosphate,and calcium magnesium phosphate at high plant densities resulted in higher yields and a smaller environmental footprint than the application of diammonium phosphate and monoammonium phosphate.Our scenario analyses suggest that combining the optimal P type and application rate with a high plant density could increase maize yield by 22%.Further,the P resource use efficiency throughout the P supply chain increased by 39%,whereas the P-related environmental footprint decreased by 33%.Thus,simultaneously optimizing the P type and application rate at high plant densities achieved multiple objectives during maize production,indicating that combining P management with cropping techniques is a practical approach to sustainable maize production.These findings offer strategic,synergistic options for achieving sustainable agricultural development.

maizeplant densitymineral phosphorus fertilizermeta-analysissubstance flow analysis

Haiqing Gong、Yue Xiang、Jiechen Wu、Laichao Luo、Xiaohui Chen、Xiaoqiang Jiao、Chen Chen

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State Key Laboratory of Nutrient Use and Management,College of Resources and Environmental Sciences,College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193,China

Department of Sustainable Development,Environmental Science and Engineering(SEED),KTH Royal Institute of Technology,Stockholm SE-100 44,Sweden

Anhui Province Key Lab of Farmland Ecological Conservation and Pollution Prevention,School of Resources and Environment,Anhui Agricultural University,Hefei 230036,China

Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering,National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary,Institute of Biodiversity Science and Institute of Eco-Chongming,College of Life Sciences,Fudan University,Shanghai 200438,China

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国家自然科学基金国家自然科学基金中国博士后科学基金

3230145332726752023M730682

2024

10.1016/j.jia.2023.10.018

农业科学学报(英文)
中国农业科学院农业信息研究所

农业科学学报(英文)

CSTPCD
影响因子：0.576
ISSN：2095-3119
年,卷(期)：2024.23(4)
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