生态学杂志2012，Vol.31Issue(8)：2050-2058,9.
控释肥硫膜降解对微域土壤性质的影响
Effects of sulfur-coating residual degradation of controlled-release fertilizers on the soil properties of fertilized microsite
摘要
Abstract
With the application of sulfur-coated controlled-release fertilizers (CRFs) in agriculture, much attention has been paid to the effects of the degraded CRFs sulfur coatings on soil environment. In this study, two types of representative agricultural soils in Shandong Province, i. e. , Argosols and Cambosols, and three types of CRFs sulfur-coating residuals including polymer-sulfur residual, sulfur residual, and sulphur slice were selected to study the effects of the residuals on the soil properties of fertilized microsite and non-microsite separated by nylon net. In Agrosols, the residuals had significant effects on the fertilized microsite soil pH. In Cambosols, the residuals had little effects on the soil pH of fertilized microsite, but the soil pH of the micro-site had more obvious decrease than that of the non-microsite. Sulfur-coating residuals had definite activation effects on soil microelements, especially on the available Fe in Cambosols, with the available Fe content being 6. 58 times of the control for polymer-sulfur residual by the end of the experiment. Applying sulfur-coated CRFs in the Cambosols could activate soil nutrients, and increase the available sulfur and phosphorus contents. The prominent effect of the residuals on soil properties was observed within the microsite 5 mm around the sulfur-coatings.关键词
控释肥/硫残膜/肥际微域/土壤性质Key words
controlled-release fertilizer (CRF) / residual sulfur coating/ fertilized microsite/ soil property.分类
农业科技引用本文复制引用
隋常玲,张民..控释肥硫膜降解对微域土壤性质的影响[J].生态学杂志,2012,31(8):2050-2058,9.基金项目
国家自然科学基金项目(30871593)、“十二五”国家科技支撑计划项目(2011 BAD11 B01和2011BAD11B02)、国家“948”重点项目(2011-G30)、贵州省科学技术基金项目(黔科合J字[2012]2342号)、和遵义师范学院基金项目(2012BSJJ10)红色化资源开发与区域经济研究中心项目(ZE2012008)资助. （30871593）
