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本文对覆盖免耕条件下夏玉米生长发育及水分利用 (以翻耕、铁茬为对照 )进行了研究 ,分析得出覆盖免耕可以降低地温 ,减少土壤蒸发 ,增加作物的蒸腾耗水 ,提高夏玉米对水分利用率 ,达到节水增产的目的。在夏玉米生长后期进行了补水的水分调控试验 ,覆盖免耕增产效果显著 ,表明在覆盖免耕种植条件下 ,适时合理地对作物进行水分调控 ,可以有效地提高作物水分利用效率
This paper studied the growth and development of summer maize under no-till conditions and the water use (tillage and stubble as control), and concluded that no-tillage can reduce the ground temperature, reduce soil evaporation and increase the transpiration water consumption of the crop, Summer corn water use efficiency, to achieve the purpose of saving water and increasing production. In the late maize growth stage, water regulation experiments were conducted to cover the effects of no-till stimulation, which showed that under the conditions of no-tillage cultivation, timely and reasonably regulating the water content of crops could effectively improve the water use efficiency of crops