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1997年在石庄镇种子场用早熟晚粳“95—20”品种进行直播水稻超高产栽培研究,经最后核产,14.3亩直播水稻平均亩产达725.5kg。1亩产700kg的群体质量特征1.1穗粒结构 早熟晚粳“95—20”直播栽培亩产在700kg以上,每亩穗数平均24.91万,每穗总粒102.3粒,结实率93.35％,每穗实粒95.5粒,千粒重30.5g。1.2茎蘖动态 700kg高产田基本苗平均4.5万,始
In 1997, early-maturing late Japonica “95-20” varieties were used to study the super-high-yielding cultivation of direct seeding rice in Shizhuang seed field. After the last nuclear production, the average yield of 14.3 mu direct seeding rice reached 725.5 kg. 1 mass 700kg population quality characteristics 1.1 Ear grain structure Early maturing late japonica “95-20” direct seeding cultivation of more than 700kg per acre spike an average of 249100, 102.3 grains per panicle, the seed setting rate of 93.35% per panicle Real grain 95.5, 1000 grain weight 30.5g. 1.2 stalks dynamics 700kg high yield field seedlings an average of 4.5 million, beginning