中国生态农业学报（中英文）2024，Vol.32Issue(4)：663-674,12.DOI:10.12357/cjea.20230517
秸秆还田方式对土壤理化性质和玉米产量的影响
Effect of straw return practices on soil physico-chemical properties and maize yield
摘要
Abstract
Highly intensive agricultural production has led to a decline in the quality of cultivated land and soil degradation.Straw re-turn is an important method for improving the soil environment and increasing soil organic matter content.However,the current method of straw return mainly focuses on the surface soil,ignoring its effects on improving the quality of the subsoil.Five straw re-turn practices were investigated:deep-injected straw incorporation(DI-SI),straw mulching(SM),straw incorporation(SI),deep-ploughed straw incorporation(DP-SI),and straw removal(SR).The objective of this study was to investigate the impacts of various straw return methods on the physical and chemical properties of different soil layers and maize yield.The aim is to offer scientific evidence for the efficient utilization of straw resources and contribute to enhancing soil quality and crop yield.The results showed that straw mulching increased soil water content,soil organic carbon,and N-acquisition enzyme activities in the 0-20 cm soil layer;deep-plughed straw incorporation increased soil water content and P-acquisition enzyme activities in the surface soil.Deep-injected straw incorporation significantly decreased soil bulk density and increased soil water content,soil organic carbon,total nitrogen con-tent,mineral nitrogen content,and extracellular enzyme activities in the 20-40 cm soil layer.Compared with straw removal,straw re-turn methods significantly increased maize yield by 13.4％-21.0％.Therefore,straw return is an important way to efficiently utilize straw resources,which is conducive to improving the soil environment of farmlands,increasing soil nutrient content,reducing the use of chemical fertilizers,promoting crop yield,and significantly contributing to the sustainable development of agriculture.Deep-injec-ted straw incorporation plays an important role in improving subsoil quality,expanding the soil carbon pool,and improving cultiv-ated land quality and productivity,and can be considered an effective measure to build a deep and fertile plow layer.关键词
秸秆还田/土壤理化性质/玉米产量/土壤酶/秸秆富集深层还田Key words
Straw return/Soil physico-chemical properties/Maize yield/Soil enzyme/Deep-injected straw incorporation分类
农业科技引用本文复制引用
王治统,凌俊,刘子熙,赵德强,李泽学,周顺利,袁兴茂,李霄鹤,温媛..秸秆还田方式对土壤理化性质和玉米产量的影响[J].中国生态农业学报（中英文）,2024,32(4):663-674,12.基金项目
国家重点研发计划项目(2021YFD1500500)、国家自然科学基金项目(31901472)和国家玉米产业技术体系(CARS-02-16)资助 This study was supported by the National Key Research and Development Project of China(2021YFD1500500),the National Natural Science Founda-tion of China(31901472),and the China Agriculture Research System of MOF and MARA(CARS-02-16). （2021YFD1500500）
