硅磷交互作用对土壤酶活力的影响  

Effects of silicon-phosphorus interactions on soil enzyme activities

作　　者：王东[1] 王晓岑[1] 李淑芹[1] 许景钢[1] 

机构地区：[1]东北农业大学资源与环境学院,哈尔滨150030

出　　处：《东北农业大学学报》2010年第3期70-74,共5页Journal of Northeast Agricultural University

基　　金：东北农业大学创新团队基金项目(CXT003-1-3)

摘　　要：采用响应曲面法研究了硅磷交互作用对盆栽水稻土壤酶活力的影响。建立了以土壤酶活力指标(过氧化氢酶、磷酸酶和蔗糖酶)为响应值的硅磷二次多项数学模型,验证了模型的有效性,得出了硅酸钠和磷酸一铵的最佳施用量分别为2.70～3.60、1.30～1.65 g.桶-1,此时土壤酶活力最高。Response surface methodology was used to study on effects of silicon-phosphorus interactions on soil enzyme activities in pots experiments of rice plants. The interactions of silicon-pho- sphorus secondary math models of the response values on soil enzyme activities （catalase, phosphatase and invertase） were eastablished, and validities of them were proved. It was obtained that the best applied quantity was 2.70-3.60 g ·pot-1 Na2SiO3.9H20 and 1.30-1.65 g·pot-1 NH4H2PO4, all of the soil enzyme activities were the highest.

关 键 词：响应曲面法 土壤酶活力 硅磷交互作用 

分 类 号：S158[农业科学—土壤学]