Environment for growing vines

Grapes are planted in fertile plots with good ventilation, sunshine and drainage. Spring sowing is mostly used in northern China, and it can be planted in the field in the middle and late April. Before planting, clean the dressing on the outside of the grafting interface with a sharp knife (after the grafted seedlings survive, the rootstocks sprouted on the rootstocks at the lower part of the grafting interface should be erased in time to ensure the purity and growth of the varieties), bury the planted seedlings in the soil to get enough water for planting, and then bury them in a small mound with fine soil to keep water, prevent dryness and make them germinate early.

growing environment

temperature

The lowest temperature for grape growth is about 12℃- 15℃, the lowest ground temperature is about 10℃- 13℃, the optimum temperature for flowering is about 20℃, and the optimum temperature for fruit expansion is 20℃-30℃. If the temperature difference between day and night is large, the coloring and sugar content are better. After the grapes germinate in spring. If the temperature rises too fast, it will easily lead to the branches growing too fast, which is characterized by insufficient node length and poor fertilization at flowering stage. In case of cold spring, we should pay attention to applying more phosphate fertilizer and high-carbon organic matter and reducing nitrogen fertilizer as much as possible.

moisture

Grapes have a high demand for water, and strictly controlling the water in the soil is the premise of planting grapes well. Grapes need more water in the early growth stage or vegetative growth stage, and less water in the late growth stage or fruiting stage, so it is necessary to avoid damaging the root system so as not to affect the quality. Grapes shelter from the rain. Years of rain can easily lead to insufficient sunshine and limited photosynthesis. Excessive water absorption can easily lead to excessive growth of branches and high humidity, which can easily lead to various diseases, such as black pox and gray mold. Therefore, it is ideal to keep the branches at 40-70 cm when flowering; The amount of irrigation in the fruit-cracking area should also be controlled during the fruit-bearing period. In areas prone to water shortage and drought, straw should be properly covered to keep soil moisture and control the growth of grass.

illuminate

Grapes must have a certain intensity of light in the normal growth process, but when the light is too strong, especially when the grapes enter the hard core stage, they are more likely to get sunburn. At this time, you can use bagging or plant leaves to keep the leaves that can cover the grapes as much as possible. When the sunshine is insufficient, it is easy to cause poor corolla shedding at flowering stage and low fertilization rate; In the stage of flower bud differentiation, flower bud differentiation is poor and parthenocarpy is more; In the growing period, the plants are long and the internodes are long. Not bearing fruit or parthenocarpy; Diseases and poor quality in fruit expansion period; When ripe, the color is not good and the sugar content is reduced.

nutritive value

Nutritional components of grapes Grapes not only taste delicious, but also have high nutritional value. The sugar content of grapes in mature berries is as high as 10%-30%, mainly glucose. A variety of fruit acids in grapes help digestion. Eating more grapes properly can strengthen the spleen and stomach. Grape contains minerals such as calcium, potassium, phosphorus and iron, and vitamins B 1, B2, B6, C and P, etc. They also contain a variety of amino acids needed by the human body. Eating grapes regularly is of great benefit to neurasthenia and fatigue.