不同复种方式对土壤养分的影响  

Effects of Different Multiple Cropping Methods on Soil Nutrients in Field

作　　者：甘雅文[1] GAN Yawen(State Key Laboratory of Highland Barley and Yak Germplasm Resources and Genetic Improvement/Institute of Agriculture,Tibet Academy of agri-clultural and Animal Husbandry Sciences,Lhasa Tibet 850032,China)

机构地区：[1]省部共建青稞和牦牛种质资源与遗传改良国家重点实验室/西藏自治区农牧科学院农业研究所,西藏拉萨850032

出　　处：《西藏农业科技》2022年第2期18-22,共5页Tibet Journal of Agricultural Sciences

基　　金：省部共建青稞和牦牛种质资源与遗传改良国家重点实验室自主课题(XZNKY-2021-C-014-Z01)。

摘　　要：试验研究了不同复种方式对土壤养分的影响。结果表明,经过一个生长季节后,随着时间的推进,复种豌豆、燕麦后土壤中有机质、全氮、土壤碱解氮、有效磷的质量分数均有增加趋势;复种后土壤全钾、速效钾的质量分数、pH值呈下降趋势。本试验通过研究不同复种方式对土壤养分的影响,旨在为合理复种提供科学依据。The effects of different multiple cropping methods on soil nutrients were studied.The results showed that after one growing season,with the advancement of time,the contents of organic matter,total nitrogen,soil alkali-hydrolyzed nitrogen and available phosphorus in the soil had increased after multiple cropping of peas and oats all;Potassium content and pH showed a downward trend.This experiment aims to provide a scientific basis for rational multiple cropping by studying the effects of different multiple cropping methods on soil nutrients.

关 键 词：复种方式 青稞地 土壤养分 

分 类 号：S157.432[农业科学—土壤学]