长期定位施肥条件下设施土壤磷的解吸特性  

Characteristics of Desorption of Soil Phosphorus in Long-Term Experiment in Vegetable Greenhouse

作　　者：杜立宇[1] 梁成华[1] 潘大伟[1] 

机构地区：[1]沈阳农业大学土地与环境学院,沈阳110161

出　　处：《北方园艺》2007年第8期13-14,共2页Northern Horticulture

基　　金：国家自然科学基金资助项目(30370972);沈阳农业大学青年基金项目资助

摘　　要：研究了长期定位条件下不同施肥处理的蔬菜保护地土壤磷的解吸特性。结果表明:有机肥对土壤磷素的解吸过程并没有明显的促进作用。但是不同的肥料配施对其影响较大,其中BNPK处理的解吸率最高,该土壤磷的有效性最高,但持续供磷能力较弱;AK处理的磷解吸率最低,该土壤磷有效性最低。Studied the characteristics of desorption of soil phosphorus on the condition of different fertilization in the long-term experimrnt.The results shows that organic fertilizer did not distinctly increase the desorption of soil phosphorus. But different compounds affected it largely. In BNPK sample, phosphorus had the highest desorption rate and the best availability, but had lower supply of phosphorus. In AK sample, the desorption and availability of phosphorus were both the lowest.

关 键 词：长期定位 蔬菜保护地 磷 解吸 

分 类 号：S155.41[农业科学—土壤学]