At present, plant hormones have been widely used on grapes. How to rationally use plant growth regulators for pollution-free cultivation of grapes? (1) Select products according to production process. The state stipulates that the production of green foods should use plant hormones produced by fermentation processes, such as gibberellin, and use of chemical hormones such as pyrimethoxazole and ethephon. (2) Reasonable use according to production purpose. At present, more use of grapes is to promote fruit enlargement, allowing the use of gibberellins to perform differently on different species. According to the author's test, the effects of using Fujisuka, Gaoqi, non-nuclear white chicken, non-nuclear white, and non-nuclear have obvious effects; most of the Eurasian varieties with grain do not have obvious effects, and the improper use of fruits causes the fruit to become smaller, and some of the non-grain varieties. Such as the wonderful non-nuclear enlargement effect is not obvious. Therefore, it is necessary to carry out tests first, and varieties with insignificant effects should not be used. (3) Correctly grasp the use period and usage. The use of gibberellin is permitted. Green food testing has a maximum limit. Therefore, the number of uses and the concentration of use must be controlled, and the frequency of use and concentration of use should not be increased blindly. China Agricultural Network Editor
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