旱地马铃薯覆膜免耕对土壤典型理化性状的影响  

Study on the Effect of Dryland Potato Nulching and Tillage-Free on Soil Typical and Chemical Properties

作　　者：赵启鹏 李海洋 Zhao Qipeng;Li Haiyang(Yuwang Township Agricultural Technology Promotion Center,Tongxin,Ningxia 751300)

机构地区：[1]宁夏同心县预旺镇农业技术推广中心,宁夏同心751300

出　　处：《宁夏农林科技》2022年第10期70-73,共4页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：为研究旱地马铃薯覆膜免耕对土壤典型理化性状的影响,对该模式下农田土壤水分、温度、容重及养分的变化进行探究。结果表明,随覆膜免耕年限的延长,0~40 cm土层的土壤容重逐步增加,且以0~10 cm土层的土壤容重增幅最大;0~100 cm土层内土壤含水量也随免耕年限的延长而增加;覆膜免耕有效增加土壤表层有机质和全氮含量,而速效钾含量在15~30 cm土层呈增加趋势。In order to study the effect of dryland potato mulching and tillage-free on soil typical and chemical properties,the changes in soil moisture,temperature,bulk density,and nutrients in farmland under this model were explored.The results showed that with the extension of the years of mulching with no tillage,the soil bulk density of the 0~40 cm soil layer gradually increased,and the soil bulk density of the 0~10 cm soil layer increased the most;The soil moisture content in the 0~100 cm soil layer also increases with the extension of the tillage-free period.Mulching with no tillage effectively increased the organic matter and total nitrogen content of the soil surface,while the available potassium content showed an increasing trend in the 15~30 cm soil layer.

关 键 词：马铃薯 覆膜免耕 土壤理化性状 

分 类 号：S532[农业科学—作物学]