Matters needing attention in growing grapes:
First, high yield and more fertilization?
Sustained high yield leads to vine weakness and tree decline. Excessive fertilization leads to soil acidification, secondary salinization, soil function decline and soil-borne diseases increase, especially the situation of protected cultivation will be more serious. It is suggested to use marine silkworm inoculum and 6 kinds of salt-tolerant compound bacteria to adjust soil pH and resist continuous cropping. ?
Preventive measures?
① Rational close planting, adjustment of framework, control of yield and rational fertilization.
② The yield is coordinated with the tree potential, and the tree potential is coordinated with the soil state. Don't rush blindly. ?
2. Don't cut and feed the grapes after harvest in autumn?
Grape is a fruit tree that differentiates flower buds while growing and bearing fruit. The whole autumn and winter after harvest is an important period for flower bud differentiation. After the grape fruit is picked, its "nutrient storage" is taken away, which breaks the nutrient balance of the tree and drastically reduces the nutrients needed for the life activities of the tree. If it is not managed properly, it is easy to make trees decay. ?
Preventive measures?
① Remove the old branches directly after harvesting, so that the new branches can fully develop and get better flower buds. ?
(2) Feeding in autumn will better restore the tree vigor, but it is difficult to achieve this effect by adjusting the root system and feeding in spring.
Third, partial application of chemical fertilizer, less application or no application.
Long-term local application of chemical fertilizer will easily lead to the decline of soil organic matter, the imbalance of soil beneficial bacteria and the decline of fruit quality. If used improperly, it will easily lead to root floating, fertilizer damage and root burning, which will directly endanger the normal growth of grapes.
Preventive and control measures:
① Root mulch, planting grass in orchard and returning straw to field are three magic weapons to increase soil organic matter. It can reduce soil salt damage and acidification, increase soil organic matter content, promote the transformation and decomposition of soil nutrients, improve soil physical properties, improve the vitality of grape roots and cultivate healthy trees. ?
(2) Pay attention to the application of organic fertilizer and bacterial fertilizer, which can improve soil environment, balance nutrition, expand beneficial flora and promote root development.