摘要
通过设置充分灌溉、节水20%、节水40%3种灌溉方式对玉米田间土壤中水分含量及变化情况进行研究,结果表明,节水20%处理下土壤中的水分含量相对较高,利于玉米生长;且在各个处理的苗期,各层土壤中的水分变化不大,拔节期后,0―40cm土层变化剧烈,60―100cm则相对平缓,得出玉米的根系主要分布在0―40cm土层中。
Full irrigation,water-saving 20%, and water-saving 40% irrigation methods were lespectively set to study soil moisture content and changes in maize field.The results showed that water content in the soil was relatively high in water-saving 20% treatment ,which was conducive to the growth of the corn; the water con- tent in different layers of soil was not changed at the seedling stage, the water content of 0-40 cm soil layer changed dramatically and that of the 60--100 cm was relatively flat after the jointing stage,it indicated the maize root system was mainly distributed in 0-40cm soil layer.
出处
《吉林水利》
2016年第9期13-15,共3页
Jilin Water Resources
关键词
节水灌溉
玉米
土壤水分含量
垂直分布
water saving irrigation
maize
Soil moisture content
vertical distribution
