摘要
为探究免耕与覆盖栽培措施对土壤养分动态变化及作物生长的影响,本研究以玉米种植为试验对象,通过田间试验对比分析了常规耕作、免耕和秸秆覆盖等不同栽培方式下土壤有机质、全氮、速效磷、速效钾等养分含量的变化趋势及其对玉米产量形成的影响。结果表明,免耕与覆盖栽培显著改善了土壤理化性质,促进有机质积累,增强土壤养分供应能力,尤其在生育中后期表现出较高的速效养分水平,因此免耕与覆盖栽培是一种生态效益与农业效益兼具的绿色耕作方式,对实现农业可持续发展具有重要意义。
In order to investigate the effects of no-tillage and mulching on soil nutrient dynamics and crop growth,this study took maize cultivation as the experimental object,and compared and analysed the trends of soil organic matter,total nitrogen,quick-acting phosphorus,quick-acting potassium and other nutrients and their effects on the formation of maize yields under different cultivation methods,such as conventional tillage,no-tillage and straw mulching,by means of a comparative field experiment.The results showed that no-till and straw mulching significantly improved soil physicochemical properties,promoted organic matter accumulation and enhanced soil nutrient supply capacity,especially in the middle and late stages of fertility,and showed higher levels of quick-acting nutrients,so no-till and straw mulching are a kind of green farming methods with ecological and agricultural benefits,which is of great significance to achieve sustainable development of agriculture.
作者
宋建群
SONG Jianqun(Leshan Vocational and Technical College,Leshan 614000,Chin)
出处
《农机使用与维修》
2025年第8期136-138,共3页
Agricultural Machinery Using & Maintenance
关键词
免耕
覆盖栽培
土壤养分
作物生长
可持续农业
no-tillage
cover cropping
soil nutrients
crop growth
sustainable agriculture
