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稻、麦植株第N叶基本与N-3他分蘖同期发出,共它各次分蘖与母茎叶的关系亦然,这一现象被称之为“叶、蘖同伸规律”。在达一规律准确实现时,单株稻麦应有的分蘖数叫理论分蘖数。对于理论分蘖数的计算,莫惠栋在《中囝农业科学》一九八三年第二期上发表了“根据主茎叶龄计算稻麦理论分蘖数的公式”一文,介绍了两套长列公式。科研生产实践中确实需要有一套准确的理论计箅公式。笔者从1977年开始寻找理论公式,经过几年的实际运算和推敲,于一九八一年导出两个组合式的公式,经过两年多实践运用,认为基本上符合实际情况,计算结果与用莫惠栋的公式计算的结果相符。并且这两个公式比较简明、易记,计算起来也较方便。现将达两个公式说明如下。
The N-leaf of rice and wheat plants was basically distributed with the same period of N-3 tillering, and the relationship between tillers and stems and leaves was also the same. This phenomenon was called “law of the extension of leaf and tiller.” When reaching a law accurately and accurately, the number of tillers that the individual rice and wheat should have is called the theoretical number of tillers. For the calculation of the theoretical tillering number, Mo Huidong published a paper titled “Formula for Calculating the Theoretical Number of tillers of Rice and Wheat According to Main Stem and Leaf Age” in “Zhongxun Agricultural Sciences”, the second phase of 1983, and introduced two sets of long Column formula. Scientific research and production practices do need a set of accurate theoretical formula. The author began to look for theoretical formulas from 1977. After several years of actual calculations and scrutiny, two combined formulas were derived in 1981. After more than two years of practical application, the author concluded that the formula was basically in line with the actual situation, Mo Hui Dong formula to calculate the results of the match. And these two formulas are more concise, easy to remember, more convenient to calculate. The two formulas will now be described below.