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2009年以超级杂交稻Y两优7号为材料,以机械直播为基础,在地处江汉平原的湖北省松滋市进行了高产栽培综合技术试验示范。结果表明:直播水稻产量达10.5t/hm2左右,比育苗移栽高900kg/hm2左右。机械直播田经专家验收产量达11t/hm2。直播增产的原因主要在于大幅度提高了单位面积的有效穗并在一定程度上提高了结实率。机械直播比手工直播综合效益高900元/hm2,机械直播增效的原因主要在于免去了匀苗成本。
In 2009, the super hybrid rice Y Liangyou 7 was used as the material, and on the basis of mechanical live broadcast, a comprehensive experimental demonstration of high-yielding cultivation was conducted in Songzi, Hubei Province, which is located in the Jianghan Plain. The results showed that the direct seeding rice yield was about 10.5t / hm2, which was about 900kg / hm2 higher than that of the seedling transplanting. Mechanical live Tian experts acceptance of production up to 11t / hm2. The main reason for the increase in live broadcast lies in the substantial increase in the effective panicle per unit area and the enhancement of the seed-setting rate to a certain extent. Mechanical broadcast live better than the comprehensive direct broadcast 900 yuan / hm2, the main reason for mechanical live broadcast efficiency is removed from the cost of uniform seedlings.