膜下滴灌施肥喷药膜上播种覆土技术研究

Study on the Technology for Sowing and Mulching over the Membrane and Drip Irrigation,Fertilizer Application and Insecticide Spraying under the Membrane

针对干旱、半干旱地区降雨年际变化大,自然降水利用率低、农田蓄水能力差、粮食产量低等问题,采用了大垄双行覆膜,膜下施肥、喷药、滴灌,膜上播种至膜下、膜上覆土镇压等技术,既能减少土壤水分蒸发,又能提高耕层土壤温度,从而促进作物的高产稳产。

In view of such problems as interannual rainfall variability,low utilization rate of natural precipitation,poor water storage capacity of farmland and low grain yield in arid and semiarid areas,a technology involving large-ridge double-row membrane covering,fertilizer application,insecticide spraying and drip irrigation under the membrane,sowing over the membrane and then under the membrane,and mulching and compacting over the membrane is adopted,which can not only reduce soil moisture evaporation but also increase arable layer soil temperature,thus promoting the high and stable yield of crops.