摘要
通过条带覆盖、留茬覆盖、压实覆盖、浅松覆盖几种试验处理的方法与传统耕作对比,得出几种保护性耕作措施对土壤蒸发量、土壤水分入渗、地温及玉米的出苗率、长势的影响,并在这个基础上探索出最适宜的保护性耕作方式,提高玉米产量。试验结果表明:各处理均可不同程度减小土壤蒸发量,改变土壤水分入渗率。在地温方面,除浅松覆盖外均低于对照。浅松覆盖和条带覆盖的玉米的生长情况优于传统,而留茬覆盖和压实覆盖的玉米的生长情况不如传统耕作。
In this paper, through comparing several experimental farming methods, including the strip mulch covering, stubble cover- ing, compacted covering and surface pulverize covering, with the tradition farming method, the influences of above conservation farming measurements on soil evaporation amount, soil water infiltration, soil temperature, the seedling emergence rate and the growth of corn are achieved. Then based on it, the most suitable conservation tillage mode is explored to enhance the yield of corn. The experimental result shows that all the treatments can reduce soil evaporation and change soil water infiltration rate the ground temperature of each treatment except surface pulverized covering is lower than that of the tradition farming mode the strip mulch covering and surface pulverized covering have promotion effect on corn growth, while the stubble covering and compacted covering have inhibitory effect on corn growth.
出处
《节水灌溉》
北大核心
2014年第3期20-23,29,共5页
Water Saving Irrigation
基金
教育部留学回国人员科研启动基金课题(教外司留[2010]1174号)
关键词
保护性耕作
土壤蒸发量
土壤含水率
入渗
地温
conservation tillage soil evaporation water content of soil infiltratiom ground temperature
