1. Selection of seeds and soil 1. When selecting seeds, you should choose suitable varieties according to local weather conditions and other factors.

2. Choose soil with convenient transportation, abundant water resources, deep soil and good drainage and irrigation for planting.

3. Do a good job of soil preparation in the autumn of the year before planting, crush the soil into fine pieces, and improve soil permeability.

4. Plow the soil deeply once, apply enough base fertilizer, fully mix the fertilizer and soil, control the planting density, dig planting trenches, and prepare for planting.

2. Management of saplings 1. After planting, do a good job in sapling management. When the saplings grow their eighth true leaves, do a good job in topdressing, and topdress every half a month or so.

2. The main fertilization in the early stage is nitrogen fertilizer, and the main fertilization is phosphorus and potassium fertilizer during August-September.

3. After planting, set up a frame, erect a bracket next to the seedlings, pull a few wires in the bracket, and tie the vines when the new shoots grow to about 55 cm.

4. Pay attention to the prevention and control of pests and diseases during the sapling stage, and spray and disinfect the plants regularly to improve the growth of black grapes.

3. Plastic pruning 1. After all the leaves have fallen in winter, an overwintering pruning work is required.

2. The pruning objects are mainly the fruit-bearing branches of the current year. Keep 3 buds for short cutting and thin out the excess branches.

3. When pruning, prune inward to prevent the fruiting parts from growing outward, and cut off branches that are too dense and have diseases and insect pests to improve the cold resistance of the plant.

4. Do a good job of wiping buds, topping and tying vines in summer to improve permeability, promote grape growth and increase yield.

IV. Flower and fruit management 1. Black grapes have strong growth ability. Generally, new shoots will have more than two inflorescences. In order to improve yield and quality during planting, generally only one inflorescence will be retained on new shoots.

2. Remove too many inflorescences. If there are too many inflorescences, the nutrient consumption will be correspondingly large, so we must promptly remove the inflorescences that are too weak or poorly grown.

3. Carry out fruit thinning according to the tree potential and fruit quantity to prevent exceeding the bearing range of the fruit trees and thus affecting the growth of the grapes.