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掌握水稻生物学规律,加强田间管理,是达到水稻增产的重要措施。这其中主要的是抓住水稻各个生育阶段进程,因地、因时、因种采取有效措施,不断调整外界条件,满足水稻高产的要求。返青分蘖期水稻插秧后,一般要经过6—7天才能返青,产生新根,然后继续生长,进入分蘖期。这个阶段是由壮苗到壮株,是奠定穗数的关键时期,又是为下阶段长大穗打基础。这个阶段主要是攻苗全苗壮,发展新根。因此,在技术措施上,既要巩固与壮大主苗,又要促进有效分蘖。而如何力争早返青,早分蘖,是争取有效穗的关键。除培育整齐一致的壮秧外,还
Grasp the rules of rice biology and strengthen field management, is an important measure to increase rice yield. The main one is to seize the process of rice growth stages, because of local time, due to take effective measures to continuously adjust the external conditions to meet the requirements of high yield rice. Returning to green After tillering rice transplanting, it usually takes 6-7 days to rejuvenate, produce new roots, and then continue to grow into the tillering stage. This stage is from strong seedlings to Zhuang Zhu, is the key to the establishment of the spike period, but also for the next stage to grow the base of the spike. This stage is mainly seedlings sprout seedlings, the development of new roots. Therefore, in technical measures, it is necessary to consolidate and strengthen the main seedlings, but also to promote effective tillering. And how to strive to early green, early tiller, is the key to effective panicle. In addition to cultivate neat and tidy seedlings, but also