摘要
针对渭北旱塬干旱少雨 ,冬小麦生育期内水分供需矛盾突出的气候特点 ,提出了旱地微型聚水保墒技术 ,该技术集地膜覆盖与秸秆覆盖于一体 ,把覆盖时间提前到前茬收获后 ,能将小麦整个生产年度降水最大限度蓄积并保存于土壤之中 ,加之温度和土壤养分提高 ,促进了小麦个体发育 ,具有良好的增产。
In accordance with the climate condition that rainfall was very limited and there was a remarkable contradiction between requirement and supply during the growing period of winter wheat in Weibei Plateau,we pointed out micro watergathering technique.It took advantage of plastic covering and straw mulch tillage. It could conserve to a great extent for the precipitation in winter wheat growing year in soil.In addition, it could raise the soil temperature and creat better conditions of water and heat for the wheat, enhancing the individual development of wheat. Owing to better growth, it created the high yield and economic effect.
出处
《麦类作物学报》
CAS
CSCD
2000年第4期51-54,共4页
Journal of Triticeae Crops
基金
国家"九五"重点科技攻关项目 !( 96-0 0 4-0 5 -0 8)
校青年基金项目
关键词
渭北旱塬
冬小麦
地膜覆盖
秸杆覆盖
Weibei plateau
Winter wheat
Plastic mulch
Straw mulch
