Grape planting techniques in South China

At present, the southern region is the fastest growing grape producing area in China, so, do you know the grape planting technology in the south?

I. Grape planting techniques in South China

1. Select seedlings

When the thick and strong seedlings are selected, the thickness of the fixed seedlings must be more than 0.5cm, and the thicker the better, the thicker the seedlings are, and the thicker the seedlings are, the thicker the seedlings are, and the thicker the seedlings are, the thicker the seedlings are, and the thicker the seedlings are between 2.5cm-4cm.

2. Colonization

The planting date is in January of the current year. Determine the planting density: planting 500 plants per mu according to the specification of row spacing of 0.5-2.2 meters.

3. Management at seedling stage.

a. Fertilization: when the tendrils of new shoots grow, they need to be fertilized every 3 days, doubly irrigated with rotten human and animal dung, one healthy shoot per plant, and the rest erased.

b. Tree structure culture: the new shoots grow upward with small bamboo poles or ropes. When the new shoots grow to the top of 65cm, the whole plant is sprayed with zhuangsu with water to control the shoots to promote the nutritional transformation of grape seedlings. The underground part is treated with urea and humic acid along with the eyedropper to promote the healthy growth of the root system. About 10 days after topping, the upper and lower two robust summer bud shoots are selected, and the rest of the summer bud secondary shoots are all erased.

4. Fertilization

Choose the appropriate amount of fertilizer according to the fertility of the land, fertile paddy fields, 1 ton of high-quality chicken manure per mu and 2 tons of high-quality chicken manure per mu in dry land. The annual amount of chemical fertilizer per mu is as follows: 110 jin of ternary compound fertilizer, 50 jin of calcium fertilizer, 50 jin of magnesium fertilizer, 3 jin of boron fertilizer, 30 jin of potash fertilizer and 30 jin of seedling fertilizer.

5. Pruning

The pruning in summer is as follows: 8 leaves are left in the branches, except the top shoot, all the secondary shoots are left single leaves and then coring or wiping, and 3 leaves are left in the upward new shoots to form the structure of the main functional leaves, so as to ensure that the leaf area is sufficient to supply the nutritional needs of grapes; routine pruning is used in winter pruning.

6. Pest control

According to the characteristics of the disease in different growth periods of fruit trees, different drugs are used to control fruit trees, and adhere to the principle of giving priority to prevention and treatment as a supplement.

a. Increase the application of organic fertilizer, apply more phosphorus, potassium, calcium and magnesium, control the application of ammonia fertilizer, promote plant health and enhance resistance. Routine prophylaxis was given every 15 days, and the main drugs were Bordeaux solution, Dyson manganese front, azoxystrobin, baobeifu magnesium and so on.

b. Downy mildew: due to the large number of Rain Water and high humidity in spring in the south, attention should be paid to the prevention and control of downy mildew. Before bagging, spray the whole plant with 1200 times of Bao Bei Fu magnesium solution + 1800 times of Jincoke solution + 2500 times of methylvitamin salt, and pay special attention to wet leaf back; when the condition is serious, spray again after 7 days.

c. Botrytis cinerea: the whole plant was sprayed with 50% Promethopril 550x solution and 50% Bao Bei Fu magnesium double 1500 times solution.

d. White rot: the whole plant was sprayed with 1500 times of azoxystrobin, and the control of other diseases and insect pests should be done well at the same time.