The cultivation of the grape facilities has the advantage of being free from the influence of natural conditions and can be carried out at any time in the field. The quality of the fruit is also improved, and the demand for grapes in the off-season market can be compensated. The requirements for soil and irrigation conditions for cultivated grapes in facilities are described below: First, the requirements of the soil conditions 1. Soil fertility must be high. In order to ensure the improvement of production and quality, we must pay attention to the application of organic fertilizer and increase the content of organic matter in the soil. To control the application of nitrogen fertilizer, we must appropriately add phosphorus and potassium fertilizers. When potassium fertilizer is used, avoid using potassium chloride, and apply potassium sulfate or ash. 2, soil permeability is better, the soil in the greenhouse to sand soil is better. For sticky heavy soil, measures should be improved by adding organic fertilizer and sand mixing. 3, the grape root system is shallow, generally the soil depth can be changed to 50cm. At the same time, in order to limit the leggy of the shoots on the ground, the conventional open-pit fertilization can be changed to shallow overturning after spreading on the ground to induce the roots to float and limit the distribution depth of the roots. This has obvious effects on controlling the leggy and improving the quality of the fruits. Effect. II. Irrigation and Auxiliary Facilities The main breeding season for grapes cultivated in facilities is in winter and spring. At this time, the indoor and outdoor temperatures are greatly different. If the water is directly poured out from the well water outside, the ground temperature may suddenly drop, causing the wilting and falling of flowers. Therefore, it is advisable to equip the greenhouse with an appropriate volume of water cellar. The water is first introduced into the pit for a period of time until the water temperature is substantially the same as the ground temperature before being used for irrigation. In general, a greenhouse with an area of ​​666.7m2 can build a water cellar with a volume of 10m3. In addition, drip irrigation can make the greenhouse soil moisture, soil temperature and ventilation conditions in the best condition to ensure the normal growth and development of grapes, and save water and labor, it is worth promoting. In addition, light-supplying devices, automatic roll-ups, reel-rolling devices, air and soil temperature and humidity automatic monitoring devices, etc., have important application values, and can be used and promoted in areas where conditions permit. Nutrition enhancers,Fruit Powder,Pectin Powder,Powdered Fruit Pectin,Pectin Powder Coles Shanghai J.Shine Co.,Ltd , https://www.jshinechem.com