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为了提高果树的座果率、加速果实生长、防止果实的采前落果,达到保花保果、年年丰产的目的,我所于1959年采用了各种生长刺激素和微量元素在苹果树上进行了不同的处理。试验结果表明:金帅品种发芽前喷布1%硼酸,其座果率可达41.6%,为对照的165.2%,喷5%的为对照的117%;红星则以5%的效果最好,座果率可达33.8%,比对照高114.5%。展叶期喷0.5%硼酸,其效果不如发芽前显著。金帅盛花期喷0.1—0.2%硼酸,对提高着果率效果很好,为对照的195%与185.3%,但对红
In order to improve the rate of fruit set fruit, accelerate the growth of fruit, prevent the fruits of fruit before falling, to achieve Paul Paul fruit, year-long high yield purposes, I used in 1959 a variety of growth-stimulating hormone and trace elements in the apple tree Different treatment was done. The results showed that 1% boric acid was sprayed on the JinShu variety before germination, with the fruit set rate of 41.6%, 165.2% of the control and 117% of the control sprayed at 5%. The red star had the best effect of 5% Fruit rate of up to 33.8%, 114.5% higher than the control. Spraying 0.5% boric acid in the leaf stage, its effect is not as good as before germination. Jin Shuai flowering spray 0.1-0.2% flow rate of boric acid, to improve the fruit rate of good results for the control 195% and 185.3%, but the red