秸秆还田对土壤理化性质及水肥状况影响的研究进展

被引:43
作者
陈盛 [1 ]
黄达 [1 ,2 ,3 ]
张力 [4 ]
郭相平 [1 ]
张秫瑄 [1 ]
操信春 [1 ]
机构
[1] 河海大学农业科学与工程学院
[2] 桂林理工大学土木与建筑工程学院
[3] 广西建筑新能源与节能重点实验室
[4] 盐城市农业资源开发规划设计与评审中心
基金
中国博士后科学基金;
关键词
秸秆还田; 土壤团聚体; 水盐运移; 土壤肥力; 土壤改良;
D O I
10.13522/j.cnki.ggps.2021540
中图分类号
S141.4 [堆肥、沤肥]; S153 [土壤化学、土壤物理化学];
学科分类号
090101 ; 0903 ; 090301 ;
摘要
农作物秸秆是农作物的重要光合产物和最主要的副产品,资源十分丰富。其富含氮、磷、钾等元素,是农业生态系统中一种十分宝贵的生物质资源,利用潜力巨大。秸秆还田是最主要的秸秆资源化利用方式,具有改良土壤、保水控盐和培肥增产等显著效果。本文系统整理和总结了2012年以来秸秆还田对土壤理化性质、水盐运移、土壤肥力及作物产量、负面影响及防治措施的研究进展,探究其影响规律和作用机理,探寻不同秸秆还田处理方式的适用性。整理归纳了秸秆还田配合不同耕作方式、添加物及预处理和粉碎程度等改善土壤理化性质的研究概况,总结了秸秆改善土壤理化性质作用机理;对比分析了秸秆还田量、埋深、长度和还田方式等对秸秆还田调控水盐运移的影响,探究了秸秆保水控盐的作用机理;总结概述了秸秆还田提升土壤肥力,促进作物增产的研究成果,提出了配施氮肥,加快秸秆腐解和注意土壤初始水肥条件等合理建议;阐述介绍了当前秸秆还田面临的主要问题及其防治措施;最后,在前人的研究基础上提出了秸秆还田实际应用的部分注意事项,并对未来潜在研究方向进行了展望。以期为秸秆资源化利用、盐渍土改良、农业高效生产等方面的研究、应用与决策提供有价值的参考依据。
引用
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页码:1 / 11
页数:11
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