绿肥对紫色土改良的重要性及相关研究进展  

Importance of Green Manure on Improvement of Purple Soil and Related Research Progress

作　　者：郑梦圆[1] 耿赛男[1] 陈益银 袁秀梅[1] 宋大利 习向银[1] 

机构地区：[1]西南大学资源环境学院,重庆400715 [2]重庆烟草科学研究所,重庆400715

出　　处：《湖北农业科学》2016年第2期280-284,共5页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(40801109);中央高校基本科研业务费专项资金项目(XDJK2011B007);西南大学资源环境学院"光炯"科技创新项目(2014)

摘　　要：长期以来,由于各种自然和人为因素的影响导致紫色土土壤肥力受到了不同程度的破坏。而绿肥作为一种无公害的优质有机肥料,对改良土壤有较好的作用。绿肥能增加土壤氮素,活化并富集土壤磷、钾元素;增加土壤含水量和土壤通透性,有效降低土壤的容重,并且能增加总孔隙度和毛管孔隙度;增加土壤有机质含量,有利于提高土壤微生物活性和土壤酶活性;种植绿肥还能在一定程度上改善土壤环境。因此,绿肥可作为紫色土改良的重要措施。同时,还提出了绿肥在紫色土改良中存在的主要问题及今后的发展前景。Nowadays, due to a variety of natural and human factors, the fertility of purple soil has been damaged in different degree. As a pollution-free high-quality organic fertilizer, green manure has good function in improving soil fertility.First, Green manure can increase soil nitrogen, activate and enrich soil phosphorus and soil potassium. Second, it can increase soil moisture content and improve soil permeability. Third, it can reduce soil bulk density effectively and also increase total porosity and capillary porosity. Fourth, it can increase the content of soil organic matterand improve soil microbial activity and soil enzyme activity. Finally, it can also improve soil environment to a certain extent. Therefore, green manure can be used as important measures for purple-soil improvement. At the same time, this treatise also puts forward main issues of green manure on purple-soil improvement and prospects of its development in future.

关 键 词：绿肥 紫色土改良 研究进展 

分 类 号：S142[农业科学—肥料学]