The best time, purpose and method of thinning 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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Good flower and fruit thinning, high grape yield
First, we should pay attention to strengthening the management of fertilizer and water; second, we should leave the damaged leaves for a long time. It will take about a month to grow new lateral branches. The leaves of new lateral branches can replace diseased leaves for photosynthesis and alleviate drug damage. The grape should be observed in the orchard at any time after spraying, and abnormal pieces and plants are found.
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Attention should be paid to potassium application in the middle and later stage of grape growth.
Potash fertilizer is very important during the whole growth period of grapes, especially during fruit growth. Therefore, the grape is called "potassium" quality crop. Potash fertilizer can promote grape fruit hypertrophy and ripening, improve variety and storage tolerance, promote branch thickening growth and ripening, and improve cold resistance, drought resistance and high tolerance.
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