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笔者对夏大豆花荚脱落规律,进行了3年系统观察,有如下体会: 一、夏大豆在不同栽培条件下,单株开花数有很大差别,虽以50～100朵居多,但条件优越的单株,可开花300朵以上:条件不好的单株,不到20朵。单花序开花数虽以3～7朵居多,但其变幅可从1朵到17朵。落花落荚虽是大豆的普遍规律,但是不同栽培条件下,其脱落程度也有明显不同。在观察中发现脱落率为55.7～77.3％。可见夏大豆增花减落的潜力很大,充分利用这一潜力,达到大豆高产是完全可行的。
I shed the law of summer soybean flower pods, for 3 years of systematic observation, the following experience: First, summer soybean in different cultivation conditions, the number of flowering plants have very different, although mostly 50 to 100, but the conditions are superior Of the plant, flowering more than 300: poor conditions of the plant, less than 20. Although the number of single inflorescence flowers mostly 3 to 7, but its amplitude from 1 to 17. Although falling flowers pod is a common law of soybeans, but under different cultivation conditions, the degree of shedding is also significantly different. Found in the observation shedding rate of 55.7 ~ 77.3%. It can be seen that there is a great potential for increasing the flowering of summer soybean, making full use of this potential to achieve high yield of soybean is completely feasible.