植物物料腐解及硼素释放研究  

Study on the Decomposition and Boron Release of Crop Materials

作　　者：曹凑贵[1] 蔡崇法[1] 张光远[1] 王运华[1] 

机构地区：[1]华中农业大学资源环境与农业化学系,武汉430070

出　　处：《华中农业大学学报》2000年第1期18-21,共4页Journal of Huazhong Agricultural University

基　　金：国家"九五"攻关课题!"鄂南棕红壤丘陵区综合治理和持续发展试验区"( 963 3 4 0 3 0 7)资助项目

摘　　要：将鄂东南第四纪红色粘土发育的棕红壤分别与 5种植物物料混合 ,进行腐解试验。研究表明 :各种作物的秸秆在初期分解量较大 ,物料混合土样的含硼量在分解初期迅速下降 ,最后接近土壤有机硼含量 ;硼的释放较有机物矿化要快 ,其半释放期在 30～ 43d ,99%的有机硼释放时间要 2 74d ,而 99%的有机物分解在 5The decomposition experiment of five crop materials proceeded on brown red soil derived from quaternry period red clay showed that residual crop materials and residual boron reduced rapidly in the earlier stages of decomposition experiment; the decomposition and boron release of crop materials could be described by frist order kinetics models. Release of organic boron is quicker than organic materials decomposition, the period of half organic boron release is 30～43 days, 99% organic boron release needs 274 days, but as to 99% organic materials decomposition, it needs 574 days.\;

关 键 词：鄂南 棕红壤 硼素释放 植物物料 腐解 尼龙袋法 

分 类 号：S141.4[农业科学—肥料学] S154.4[农业科学—农业基础科学]