High-yield fertilization technology for grapes

Grapes are perennial plants. They grow up every year and need to absorb a lot of nutrients from the soil. In order to maintain continuous healthy growth and continuously improve production and quality, they must be fertilized reasonably. It has been determined that for every 100 kilograms of berries produced, it is necessary to absorb 0.56 to 0.62 kg of pure nitrogen, 0.68 to 0.72 kg of phosphorus, and 0.56 to 0.62 kg of potassium. Therefore, it is very important to balance the rational fertilization. Fertilization of grapes can be divided into basic application and follow-up.

1. Base fertilizer: Generally, it is best after 9 to 10 months after fruit harvesting. This can store nutrients, enhance the tree, and lay the foundation for the next year's high yield. It can be used for wintering in the northern winter. Some fall no longer applied, and this is more demanding for fertilization in the spring. The fertilizer must be fully decomposed. Generally, farmer's fertilizer, manure, chicken, pig, cow dung, etc. are added with superphosphate. The dosage is generally determined according to the age and load of the tree: generally 3,000 to 5,000 kg of farmyard manure, 30 to 50 kg of superphosphate and 4 to 8 kg of bio-fertilizer.

Note:

Decomposing method:

1. Add 500 ml of bacon biological bacteria to each manure and keep it for 7 to 15 days.

2. Add 2 kg of corn noodles, 1 kg of brown sugar, 1 kg of urea, and 5 kg of wheat bran water to each manure. After mixing in a semi-dry and semi-wet condition, the pile is stuffy and swelled for 7 to 15 days. The superphosphate is preferably used together with the organic fertilizer, which can greatly improve the fertilizer utilization rate.

2, top dressing: According to the characteristics of the grape's fertilizer, it is essential to do a good job according to the growth period, generally 2 to 4 times throughout the growing season. Suggestion: Before the first germination, the nitrogen and phosphorus fertilizers are mainly used with a small amount of potassium fertilizer; the second berry phase is mainly based on phosphorus and potassium fertilizer, and the appropriate amount of nitrogen fertilizer; in the third coloring period, the phosphorus and potassium fertilizers are mainly applied to a small amount of nitrogen fertilizer. . (Note: In order to improve the fertilizer utilization rate and improve the soil fertility, it is necessary to add appropriate amount of humic acid products such as: vigor 99:1 to 1 kg/mu. If it can dissolve the fertilizer and vitality nine days earlier, dissolve it one day. After that, the next day, the effect is better with water.)

3, root fertilization (foliar fertilizer): in the grape growth process to do a good job of foliar fertilization can get twice the result with half the effort, not only greatly improve the fruit set rate, improve fruit quality and prevent the occurrence of physiological deficiency. A. Spraying 0.05%~0.1% boron fertilizer + 600 times Haitian force in the early flowering period can increase the fruit setting rate. B. Spraying calcium fertilizer before flowering, young fruit, and berry can increase yield and quality and prevent cracking. Such as: 1 calcium nitrate + Haitian force 600 times liquid. 2 amino acid calcium. 3 superphosphate lime leachate 1% ~ 3% + Haitian force 600 times. During the fruit setting period, spraying 0.02% potassium dihydrogen phosphate or 3% grass ash leaching solution (soaking one day before spraying) can greatly increase the sugar content and yield.

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