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1965年在早稻育秧期间,由于北方冷空气不断南下,低温持续时间相当长,给生产上带来了许多问题:首先是如何提高秧田成秧率?其次是秧苗不足,补播到什么时候,仍有利于全年生产?第三,在普遍推迟插秧的情况下,小苗早插好呢,还是等待大苗再插?第四,在迟插情况下,促使早稻早发早熟高产,要抓那些关键?我们针对这些问题除做了一些对比试验外,并根据不同生产季节组织一部分人员进行调查,现将试验和调查情况整理如下。
During the early rice seedling raising period in 1965, due to the continual southward cold air in the north, the duration of low temperature was quite long, which brought many problems in production: firstly, how to increase the seedling rate of seedling; secondly, when seedling was insufficient, Is conducive to annual production? Third, the general delay in the case of transplanting, as early as the young seedlings plug it, or wait for seedlings and then inserted? Fourth, in the case of late plug, early rice early impetus to promote high yield, to grasp those key? In addition to doing some comparative tests on these issues, we organized some personnel according to different production seasons to conduct investigations. We have summarized the tests and investigations as follows.