水土保持研究2012，Vol.19Issue(3)：274-277,283,5.
施肥制度对川中丘陵区玉米不同生育期土壤反硝化酶活性的影响
Effects of Fertilizer System on Soil Denitrification Enzyme Activity at Different Growth Stages of Maize in Hilly Regions of Middle Sichuan
摘要
Abstract
The six kinds of fertilizer system are as follows. N （N）, organic manure （OM）, mixture of N, P and K （NPK）, organic manure combined with N, P and K （OMNPK）, and straw combined with N, P and K （RSDNPK）. The fertilizer of each treatment was applied in the soil at different growth stages of maize. The experiment plots are located at the slope land of typical purple soil area in Middle Sichuan. The activities of soil nitrate reductase, nitrite reductase and hydroxylamine reductase at the jointing stage, the filling stage and the maturity stage of maize were determined. The results showed that the activities of nitrate reductase, nitrite reductase, and hydroxylamine reductase increased in the treatments of N, OM, NPK, OMNPK and RSDNPK, and the best treatments for enzymatic activity were RSDNPK and OMNPK. It suggested that RSDNPK and OMNPK could have better advantages to improve the activities of nitrate reductase, nitrite reductase and hydroxylamine reductase at the slope land of purple soil area in Middle Sichuan, and enhance the as similation rate of N by crops.关键词
施肥制度/硝酸还原酶/亚硝酸还原酶/羟胺还原酶/玉米Key words
fertilization system/nitrate reductase/nitrite reductase/hydroxylamine reductase/maize分类
农业科技引用本文复制引用
王苏平,辉建春,林立金,朱雪梅,朱波..施肥制度对川中丘陵区玉米不同生育期土壤反硝化酶活性的影响[J].水土保持研究,2012,19(3):274-277,283,5.基金项目
国家科技支撑计划项目 （）
