摘要
2011年6~8月进行2期池栽试验,研究土壤水分及农艺措施对夏玉米出苗及幼苗生长效应。结果表明,播种后镇压覆盖能够提高土壤含水量,平衡土壤温度,从而提高夏玉米出苗率,增强幼苗素质,提高苗期田间株高整齐度,有利于培育齐苗壮苗,在土壤水分不太充足时效果更为明显。为保证黄淮海夏玉米区的出苗质量,播种时的土壤最低持水量应保持土壤最大持水量的60%。
The effects of soil water and agronomic measures on eco-physiological responses of no-tillage seedling summer maize were explored from June to August in 2011.The results showed that the compaction and wheat straw mulching after sowing was not only propitious for increasing soil moisture content,but also beneficial to balancing and improving the status of soil temperature through the function of heat preservation.For ensuring high quality summer maize seedlings in Huang-Huai-Hai plain,the soil water should be higher than 60% of field moisture capacity at sowing time.
出处
《玉米科学》
CAS
CSCD
北大核心
2013年第5期87-93,99,共8页
Journal of Maize Sciences
基金
河南省玉米产业技术体系建设专项(S2010-02-G04)
关键词
玉米
土壤水分
农艺措施
免耕抗旱播种
麦秸覆盖
Maize
Soil water
Agronomic measure
No-tillage and drought resistant seeding
Wheat straw mulching
