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高产水稻,在本田前期要保证有充足的苗数,中期要落色。但如果不注意后期管理,则前功尽弃。普通栽培的水稻约70％,高产栽培的约90％,都是在出穗后形成的产物。后期管理的主要目标,是加强叶片的同化能力和促使根系壮健。生育后期最重要是减数分裂期和成熟盛期。这是水稻一生的二大危险期,这时稻的营养和环境良否,对于产量反应敏感,所以也是决定产量最重要的时期。
High-yielding rice, in the Honda early to ensure adequate number of seedlings, the medium term to fall. However, if you do not pay attention to the latter part of management, then come to naught. About 70% of ordinary rice is cultivated, about 90% of high-yielding cultivation, are the products formed after heading out. The main objective of the latter management is to enhance the assimilation ability of the leaves and promote the strong root system. The most important post-fertilization period is meiosis and mature peak. This is the second most dangerous period of rice’s life. At this time, the nutrition and environment of rice are sensitive to the yield and therefore the most important period for determining the yield.