地膜覆盖水稻旱作直播栽培技术水稻具有水陆两生特性，在孕穗、开花、灌浆需水关键时期，保持土壤湿度在７０％以上，不建立水层，也能正常满足水稻生理需水的要求。我省降水量比较充沛，正常年份为４００～１０００毫米，其中８０％分布在５～９月份，地膜旱种水稻幼苗阶... Dry-planting Direct-seeded Rice Cultivation Techniques with Dry Film Mulching Rice has the characteristics of amphibian and water. During the critical period of booting, flowering and grouting, the soil moisture is kept above 70%. Without the establishment of water layer, rice can also meet the requirements of physiological water requirement. Precipitation more abundant in our province, the normal year for the 400 ~ 1000 mm, of which 80% distributed in the 5 ~ September, dry mulching rice seedlings ...