Matters needing attention in planting Grape in greenhouse

Grape is a common fruit in our daily life, with many varieties, and many people like to eat it. And many fruit grower friends in order to seize the psychology of consumers, will use the greenhouse to cultivate grapes, so that everyone can eat sweet and juicy grapes all the year round.

However, it is not so easy for greenhouse grapes to have a high yield, oh, one of the areas that we need to pay attention to is the control of temperature, and the temperature regulation should pay attention to moderate regulation and stage by stage. Let's learn and have a look.

I. the early stage of grape growth

This stage mainly refers to the stage from grape sprouting to pre-flowering, the daytime temperature in the shed can be raised to 23 degrees Celsius to 25 degrees Celsius, and if it is good lighting and good heat preservation, it can also be raised to 27 to 28 degrees Celsius. What we need to pay attention to is that too high temperature will lead to uneven growth and development of grape seedlings, so when the temperature exceeds 25 degrees, it is necessary to take measures to prevent the wind at the top. Pay attention to heat preservation at night, generally maintained at 7 to 8 degrees.

Second, the middle stage of grape growth.

This stage mainly refers to the period before and after the flowering period of grapes, which is the period of pollination, which is extremely sensitive to light. During the day, it is necessary to change air in time and increase the sunshine temperature. The best range is from 25 degrees to 28 degrees. If you exceed 30 degrees, you should pay attention to ventilation and cooling. At night, we also need to pay attention to the heat preservation of grape plants, which can be maintained above 14 degrees Celsius.

III. Fruit expansion period

This stage can also be said to be the stage of grape ripening, when the external temperature begins to pick up slowly, and the temperature difference between inside and outside the shed is relatively small, so the temperature in the shed can be easily controlled, and the daytime temperature in the greenhouse can be maintained at 28 to 32 degrees. The night temperature is 15 to 17 degrees, and the temperature difference is controlled above 10 degrees, which is conducive to the coloring of grapes in the greenhouse.

Generally speaking, temperature regulation is very important to the yield of grape in greenhouse, the plastic film is very important in the initial stage, and the next step of temperature control can be carried out in the later stage according to the growth stage.