抗旱保苗机械化播种技术是根据土壤墒情状况,含水率的高低,选择使用保墒播种技术或补墒播种技术,可实现一次播种保全苗。该技术省工、省力、抢农时,抗旱保苗、增产效果显著,每公顷可增产玉米500kg以上。当地表下3￣10cm耕层土壤含水率大于15%时,用保墒播种技术;小于15%时,用补? Drought seedlings seedling mechanization sowing technology is based on soil moisture conditions, the level of moisture content, choose to use moisturizing sowing technology or planting moisture sowing technology can be achieved once sowing seedlings. The technology of labor-saving, labor-saving, grab farming, the drought seedlings, yield significant results, yield per hectare of corn more than 500kg. When the soil moisture content of topsoil 3 ~ 10cm topsoil is more than 15%, using moisture sowing techniques; less than 15%