有机肥替代化肥对土壤肥力和玉米产量的影响

The Effect of Organic Fertilizer Alternative Chemical Fertilizer on soil Fertility and Maize Yield

本文以‘先玉335’为试验材料,于甘肃平凉灵台县进行了田间试验,比较了不同比例有机肥替代化肥对土壤肥力和玉米产量的影响。结果表明:有机肥部分替代化肥有利于土壤养分、酶活性以及玉米产量的增加,在有机肥替代20%化肥氮时玉米产量及土壤性状改良效果最佳,是最适宜的有机肥化肥施入配比。

A field experiment was conducted in Lingtai County,Pingliang City,Gansu province,to compare the effects of organic fertilizer on soil fertility and maize yield.The results showed that organic fertilizer partly replaced chemical fertilizer was beneficial to the increase of soil nutrients,enzyme activity and maize yield,and the yield and soil properties of maize were improved best when organic fertilizer replaced 20%chemical fertilizer nitrogen,is the most suitable ratio of organic fertilizer and chemical fertilizer application.