陇东旱作农业蓄水保墒综合技术

Integrated techniques on water collection and soil moisture preservation in dryland agriculture in Eastern Gansu

针对旱农区干旱缺水及降水年内分配不均、土壤蒸发量大的特点 ,总结出旱耕深耕翻、全方位深松、梯田拦水、平地沟播种植、山地水平沟种植、旱地冬小麦周年地膜覆盖抗旱丰产栽培、耙耱保墒、镇压保墒及提墒、中耕保墒、覆盖保墒、化学制剂抗旱保墒、“回墒土壤耕作法”等几种抗旱蓄水保墒综合技术 ,以利于充分接纳雨水 ,抑制土壤蒸发 ,提高天然降水利用率 。

Aiming at the characteristics of water shortage, unevenly distributed precipitation and large amount of evaporation in dryland farming area, this paper has summarized a series of techniques including; early plowing, deep plowing,slope land terracing, furrow planting, contour planting, year around plastic film mulching, moisture keeping by harrowing and rolling, chemicals application, etc. The practice of these techniques functions positively in stabilizing dryland agriculture development by conserving rainfall and restraining moisture evaporation.