水稻旱种保苗技术的研究

Technology of Rice Dry Planting for Saving Seedlings

水稻旱种是水稻节水栽培的一种种植方式。稻田旱整地后,15cm深的土壤含水量可达到25%以上,用播种机播种深1.5～2.0cm,覆土、镇压。当水稻长至2.5～3.0叶时,灌溉、建立水层,之后,正常水层管理,保苗密度500株/m2,产量不低于水直播。

Rice dry planting is a saving water way,which is to sow seeds in1.5～2.0cm deep with seeder,then cover and press soil when moisture content is above25%in15cm deep soil after dry leveling land.Irrigating and building water layers at rice2.5～3.0leaves then normal management can save seedlings500plant/m 2 and make yield not below that of water direct swing.