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水稻进入生殖生长阶段后,在生理上逐渐发生越来越大的变化,因此在管理上必须根据其生理的需求,合理调配水肥,才能达到稳产高产的目的。在生殖生长阶段,第一个特点就是内部碳氮比的转化,即由对氮素的代谢而转入对碳的代谢。根据这个特点,应控制对氮肥的施用并适当晒田,促使营养内转。第二个特点是随着营养生长的减弱,营养器官也逐渐老化,同时生殖器官旺盛,抗逆性减弱,
After the rice enters the stage of reproductive growth, its physiology gradually changes more and more. Therefore, it is necessary to rationally allocate water and fertilizer according to its physiological needs in order to achieve the goal of stable and high yield. In the reproductive growth stage, the first characteristic is the transformation of the internal carbon to nitrogen ratio, that is, from nitrogen metabolism to carbon metabolism. According to this feature, the application of nitrogen fertilizer should be controlled and the appropriate sunning, to promote nutrition within the turn. The second characteristic is that with the decline of vegetative growth, vegetative organs also gradually aging, meanwhile, the reproductive organs are exuberant, the resistance is weakened,