水稻旱育秧应用旱育壮秧剂和“旱抛成功”试验研究

Research on Application of Growth Promoting Hormone and Throw-planting Technique in Upland Rice Nursery

水稻旱育秧应用旱育壮秧剂、“抛栽成功”包衣 ,提高出苗率 1 1 %～ 5 1 % ;提高成秧率 2 7%～ 8 5 % ;并使秧苗植株变矮 ,分蘖、叶片增多 ,根系发达 ,茎部变粗和鲜重提高 ;其抛栽产量增幅为 3 65 %～ 5 1 1 % ,移栽产量低于对照 ,抛栽增产的原因主要是分蘖发生旱 ,成穗率高 。

Application of growth promoting hormone and thrown planting technique in upland rice nursery can raise seedling emergence rate by 1 1～5 1% and seedling stand percent by 2 7%～8 5%, dwarf the plant, increase tillers and leaves, make root system flourishing, promote stem thick and enhance fresh weight. The yield of thrown planting rice increases by 3 65～5 11%, but the transplanted yield is lower than the check one. Early tillering, high percentage of earbearing tiller and increased effective spikes per unit area are the main reasons for increasing in yield of thrown planting rice.