Four measures to improve the quality of grapes
2020-12-22 14:17:44
First, reasonably control output. There are 7-10 shoots per square meter of grape in the pergolas, and the distance between adjacent shoots is kept at 20 cm or more, and 4-5 inflorescences are left in each tip. When the inflorescence is shaped, the buds in the range of 13 cm in the center axis are preserved. Each ear fruit: 30-35 large-granules, 40-50 medium-sized capsules. When harvesting, the average single ear weight is 400-500 grams, and the yield per mu is controlled below 1500 kg.
Second, increase phosphorus and potassium fertilizers. Before the sprouting of the vine, 3000-4000 kg of organic fertilizer is applied per mu. During the young fruit period, 10 kg of potassium sulfate is applied per mu, and 0.2% concentration of potassium dihydrogen phosphate is sprayed during the fruit expansion period.
Third, hormone treatment ear. In the young fruit period, spraying Pyclizol 3 500 times twice can increase the single ear weight by more than 8 grams, the fruit coloring can be advanced 5-6 days, and the ear can be sprayed with 7510-6 concentration EF growth promoter per acre. The yield can be increased by 15%; the use of a concentration of 5010-6 gibberellic acid or triacontanol to spray at the initial flowering stage and flowering stage can make the fruit non-nuclear and mature 15 days earlier.
Fourth, to the fruit bagging. The fruit bagging can inhibit the occurrence of black pox, white rot, anthrax, and sun scorch, avoid pests, prevent cracking, and ensure that fruits are not contaminated by pesticides. Usually after the sparse ear shaping, the whole tree is sprayed with a 70% concentration of thiophanate-methyl 1000 times. After the liquid is dry, it is bagged.
Second, increase phosphorus and potassium fertilizers. Before the sprouting of the vine, 3000-4000 kg of organic fertilizer is applied per mu. During the young fruit period, 10 kg of potassium sulfate is applied per mu, and 0.2% concentration of potassium dihydrogen phosphate is sprayed during the fruit expansion period.
Third, hormone treatment ear. In the young fruit period, spraying Pyclizol 3 500 times twice can increase the single ear weight by more than 8 grams, the fruit coloring can be advanced 5-6 days, and the ear can be sprayed with 7510-6 concentration EF growth promoter per acre. The yield can be increased by 15%; the use of a concentration of 5010-6 gibberellic acid or triacontanol to spray at the initial flowering stage and flowering stage can make the fruit non-nuclear and mature 15 days earlier.
Fourth, to the fruit bagging. The fruit bagging can inhibit the occurrence of black pox, white rot, anthrax, and sun scorch, avoid pests, prevent cracking, and ensure that fruits are not contaminated by pesticides. Usually after the sparse ear shaping, the whole tree is sprayed with a 70% concentration of thiophanate-methyl 1000 times. After the liquid is dry, it is bagged.
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