Growing conditions for quality grapes

Temperature

Grape growth requires a lower temperature of about 12 ℃ -15 ℃, lower ground temperature of about 10 ℃ -13 ℃, the appropriate temperature for the flowering period of about 20 ℃, the appropriate temperature for the fruit expansion period of 20 ℃ -30 ℃. If the temperature difference between day and night is large, coloring and sugar is better. After the spring sprouting of grapes. If the temperature rises quickly, it is easy to cause the branches to grow in vain, manifested in the section wink long not full, easy to fertilize the poor flowering period, such as the spring cold should pay attention to more phosphorus fertilizer and high carbon organic matter, minimize nitrogen fertilizer.

Water

Grapes have high water requirements, strict control of soil moisture is a prerequisite for good grapes. Grapes in the early stages of growth or nutrient growth period when the amount of water required more, late growth or fruiting period, the roots are weaker and need less water, to avoid injuring the roots to avoid affecting the quality. Grapes avoid rain and dew, rainy years easy to cause insufficient sunshine, photosynthesis is limited, too much absorption of water easy to cause branches and high humidity, very easy to cause a variety of diseases, such as black pox, gray mold and so on. Therefore, in the flowering period as far as possible to keep the branches in 40-70 cm ideal; easy to crack the fruit in the area of the result of the irrigation should also be controlled. Water shortages and drought-prone areas should be appropriately covered with straw to maintain soil moisture, but also to control the growth of grass.