Strategic Study of CAE >> 2018, Volume 20, Issue 5 doi: 10.15302/J-SSCAE-2018.05.013
Strategies for Soil Fertility Improvement of Arable Land in China
1. College of Land Science and Technology, China Agricultural University, Beijing 100193, China;
2. School of Public Administration and Policy, Renmin University of China, Beijing 100872, China
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Abstract
This paper systematically reviews the trends of soil fertility of arable land in China and puts forwards that the soil fertility improvement of arable land in China should realize the strategic change from single application of chemical fertilizer to the combined application of organic and inorganic fertilizers, combine cultivation with preservation to maintain soil fertility, and implement spatial differentiation control. Moreover, this paper summarizes the ways to improve the soil fertility of arable land in China, including increasing the application of organic fertilizer, promoting straw returning to the field, resuming and promoting green manure cultivation, improving the farming conditions, and optimizing the layout of agroforestry networks. At last, this paper proposes policy suggestions of implementing high-standard farmland construction projects, soil improvement and restoration projects, grass-crop rotation projects, straw returning projects, and livestock and poultry manure application projects.
Keywords
保持土壤肥力 ; 应实行空间差异化管控的战略思路 ; 总结出增施有机肥、推广秸秆还田、恢复推广绿肥种植以及提升农田耕作条件和优化农田林网布局等耕地土壤肥力提升实现途径 ; 提出了国家继续实施高标准农田建设工程、土壤改良修复工程、草田轮作工程、秸秆还田工程和畜禽粪便肥料化利用工程等政策建议。 ; 本文系统梳理了中国耕地土壤肥力变化态势 ; 提出我国耕地土壤肥力提升应实现从单一施用化肥向有机无机肥相结合的战略转变 ; 应
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