摘要
采用3种不同的秸秆覆盖量,以不覆盖为对照(CK),研究秸秆覆盖畦灌对冬小麦生长发育及其土壤环境的影响。试验结果表明,秸秆覆盖对畦灌水流有明显的阻滞作用,其中覆盖量为4 500 kg/hm2的阻滞作用最大,9 000 kg/hm2的阻滞最小;秸秆覆盖畦灌对土壤具有明显的保墒、调温效应;对冬小麦返青期的分蘖、株高均无显著影响;可有效提高产量,其中9 000 kg/hm2与4 500 kg/hm2处理达显著水平。综合考虑认为,最适合陕西杨凌冬小麦秸秆覆盖畦灌栽培的覆盖量为9 000 kg/hm2。
It was researched that the effects of border irrigation under straw mulch on the growth,development and soil environment of winter wheat.In the experiment,3 different quantities of straw mulch were researched,the treat of ＂no-mulching＂ was used CK.The result showed that the water flow was blocked obviously by the straw mulch when border irrigation,the blocking influence of 4 500 kg/hm2 is the most,while 9 000 kg/hm2 is the least.The effects were obvious in keeping moisture and adjusting temperature of the soil.There were not obvious influence on the tiller and the stem height of the winter wheat after returning green during spring,while the yield was raised effectively,and the effects were remarkable in 9 000 kg/hm2 and 4 500 kg/hm2.With a comprehensive consideration,9 000 kg/hm2 was the most suitable straw mulching quantity in winter wheat in Yangling,Shaanxi.
出处
《灌溉排水学报》
CSCD
北大核心
2010年第5期64-67,共4页
Journal of Irrigation and Drainage
基金
国家863计划项目(2002AA2Z4211)
关键词
冬小麦
秸秆覆盖
畦灌
生长发育
环境
winter wheat
straw mulching
border irrigation
growth and development
environment
