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壮秧是水稻高产栽培基础,没有壮秧就不能进行稀植栽培,更无高产高效益可谈。可是,到底什么样的秧苗才算是壮秧呢?我们的体会是:1.具有良好的外观品质①根系发达:根为黄白色,根毛多,冠根比不小于0.35,根鲜重不少于0.3克/株,每株根数不少于25条②分蘖多:4.5—5.0叶龄的秧苗,分蘖率不少于70％,平均蘖高不低于9厘米。③株体充实度高:充实
Strong seedling is the basis of high yielding cultivation of rice, without strong seedling cultivation can not be sparse planting, but no high yield can be talked about. However, in the end what kind of seedlings can be regarded as strong seedling? Our experience is: 1. Has a good appearance quality ① root system developed: the root is yellow and white, root hair and more, crown and root ratio of not less than 0.35, root fresh weight not less than 0.3 g / plant, root number per plant not less than 25 ② more tillers: 4.5-5.0 leaf-age seedlings, tillering rate of not less than 70%, average tiller height of not less than 9 cm. ③ strain of high degree of solid: full