On the problem of sparse inflorescence of grape
1. The purpose of grape inflorescence thinning is to further adjust the yield on the basis of wiping buds and fixing branches, to achieve a reasonable plant load, to save nutrition, and to improve fruit setting rate and fruit quality in order to achieve the purpose of high quality and high efficiency. 2. The time of blossom thinning of grapes: when the inflorescences of new shoots can be clearly identified, they should be carried out as soon as possible to save nutrients and promote growth. Avoid unnecessary waste of nutrition. 3. The method of thinning the inflorescence of grape: for a few strong branches, generally leave two inflorescences, one inflorescence for the medium growth potential fruiting branches, and no one for the weak branches. In order to achieve a reasonable leaf-fruit ratio to ensure the yield and quality of berries.
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Pay attention to the prevention and control of grape diseases during Meiyu period
When Jufeng grape uses B9 and paclobutrazol to protect fruit, it is easy to cause side effects such as shorter flower ear, smaller fruit grain and so on. therefore, how to make Jufeng protect fruit without hardening fruit stalk, the method of fruit reduction is what people have been looking forward to for a long time. After many years of experiments, we have adopted the pyrone bao fruit produced by Lanyue Science and Technology Company of Sichuan Academy of Agricultural Sciences.
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Disease control of grape in rainy season
Grape downy mildew is one of the important diseases of grape, which can occur in all parts of our country, mainly harming leaves, causing early defoliation, but also harming new shoots and ears. The main symptoms are polygonal macula on the front of the leaf, withered in the later stage, brown in color and white downy mildew on the back. Grape downy mildew.
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