摘要
以辽西阜新的山杏为试验材料,通过不同的玉米秸秆覆盖厚度处理来探讨对土壤养分及土壤酶活性的影响。结果表明：随着秸秆厚度的增加,土壤中的养分及酶活性都随之增加,并且上层土壤含量及酶活性高于下层土壤;在10cm和20cm处理中除了钾含量和多酚氧化酶活性有差异外,其余各处理间无显著差异,所以,适合当地山杏的覆盖厚度以10~20cm较为合适。
Taking Armeniaca sibirica in Fuxin City of Western Liaoning Province as experimental material,the effects of corn stalks with different thickness on soil nutrient and soil enzyme activities were discussed.Result shows that the soil nutrient and enzyme activity increase with the increase of the thickness of straw,and the content of the upper layer of soil and enzyme activity is higher than the that of the subsoil.Potassium content and activity of Polyphenol oxidase have the differences between the treatment of 10 cm and 20 cm,other treatments have significant differences.Therefore,suitable mulching thickness for local Armeniaca sibiricais from 10 cm to 20 cm.
出处
《防护林科技》
2016年第5期23-24,共2页
Protection Forest Science and Technology
关键词
秸秆覆盖
山杏
土壤养分
土壤酶活性
straw mulching
Armeniaca sibirica
soil nutrients
soil enzyme activities
