春小麦免储水灌全膜覆盖穴播与保水剂配合节水技术研究

通过对甘肃河西地区春小麦免储水灌全膜覆盖穴播与保水剂配合节水技术的试验研究,测定了春小麦地土壤水分变化规律、小麦耗水规律及产量效应,分析配套施用保水剂对春小麦地土壤水分的影响。研究结果表明,在河西地区,小麦采用免储水灌全膜覆盖施用保水剂穴播技术能有效地减少农田在休闲期的土壤蒸发量,提高农田的水分利用效率,可减少首次灌水量30mm,全生育期耗水量减少80.0mm,节水16.60%,增产4.37%,水分利用效率提高21.70%。

The Research on Hold Seeding Technology Covered with Full Film when Absolved Water-storing Irrigation and Use Water Holding Agent of Spring Wheat

Through the experiment on hold seeding technology covered with full film when absolved water-storing irrigation and use water holding agent of spring wheat.The soil moisture diffusion law,water consumption law and water consumption were tested under transplanting with water conditions of spring wheat.The impacts on soil moisture were analysis when matching application water-holding agent.The results show that in Hexi areas,use hold seeding technology covered with full film when absolved water-storing irrigation and use water holding agent of spring wheat would effectively reduce soil evaporation in leisure farms stage,improve the water use efficiency,reduce initial irrigation water 30 mm,reduce whole growth consumption 66 mm,aving water 16.60%,improve yield 4.37%,improve water use efficiency 21.7%.In the actual production it can be widely application.