应用生态学报2012，Vol.23Issue(10)：2663-2669,7.
土壤含水量、pH及有机质对DMPP硝化抑制效果的影响
Inhibitory effect of DMPP on soil nitrification as affected by soil moisture content, pH and organic matter
摘要
Abstract
A laboratory incubation test with meadow brown soil was conducted to study the inhibitory effect of 3 ,4-dimethylpyrazole phosphate (DMPP) on soil nitrification as affected by soil moisture content (40% , 60% and 80% of the maximum field capacity) , pH (4,7 and 10) , and organic matter (retained and removal). With the decrease of soil moisture content, the degradation of DMPP in soil tended to slow down, and the oxidation of soil NH4+ was more inhibited. At pH 10, more DMPP was remained in soil, and had the greatest inhibitory effect; at pH 7 and pH 4, the DMPP was lesser remained, with a smaller inhibitory effect. The removal of organic matter prolonged the remaining time of DMPP in soil, and decreased the apparent soil nitrification rate significantly.关键词
DMPP/硝化抑制剂/环境因素Key words
DMPP/ nitrification inhibitor/ environmental factor分类
农业科技引用本文复制引用
薛妍,武志杰,张丽莉,宫平,董欣欣,聂彦霞..土壤含水量、pH及有机质对DMPP硝化抑制效果的影响[J].应用生态学报,2012,23(10):2663-2669,7.基金项目
"十二五"国家科技支撑计划项目(2011BAD11B04,2012BAD14B04)资助. （2011BAD11B04,2012BAD14B04）
