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杂交晚稻优势强,产量高。主要优点是根系发达、分蘖力强,穗大粒多。但也存在着“分蘖有余;成穗不足;个体有余,群体不足;穗大有余,实粒不足”的缺陷。同时还存在着秧龄弹性不大抗病虫较差的弱点。针对杂交晚稻这些特点,栽培上主要应抓住主攻穗大粒多。笔者恨据自己多年的蹲点实践,就如何主攻杂交水稻穗大粒多问题谈点体会。
Late rice hybrid superiority, high yield. The main advantage is the developed root system, tillering ability, spike large grain and more. But there are also “more than tillering; lack of spike; more than individuals, groups less than; spike large, real grain shortage” defect. At the same time there are also weaknesses of seedling age less susceptible to pests and diseases. Late hybrid rice for these characteristics, the main cultivation should seize the main spike large grain. I hate many years of their own practice of the months of practice, how to deal with the main hybrid rice panicle problems.