近几年来的试验表明,巧喷“九二O”是提高晚稻产量的一个有效措施。尤其是在旱情严重,部分晚稻主茎早穗趋势明显,采用抛秧栽培的晚稻分蘖期长,个体之间发育进度不一的情况下,喷施“九二O”,可有效协调和缓解这些矛盾,促进晚稻平衡增产。巧施“九二O”,应注意以下几点。1.与水稻 Experiments in recent years show that the Qiaojiao “920” is an effective measure to increase the yield of late rice. Especially in the severe drought, part of late rice main stem early spike trend obvious, using throwing transplanting cultivation of late rice tillering period, the progress of individuals under different circumstances, the spray “nine two O”, which can effectively coordinate and alleviate these Contradictions, to promote balanced production of late rice. Qiao Shi “nine two O”, should pay attention to the following points. With rice