After the grape shed, it should be carefully watered

After the greenhouse has warmed up in the shed, it should be properly watered according to the growth and development rules of the plant, which can promote the growth and development of the grape, increase the yield and quality.

First, the principle of water management The early growth of grapes to ensure adequate soil moisture, to promote bud growth: appropriate control of water during flowering to promote flowering, fruit set; fruit growth period to ensure that the needs of grape water to promote fruit enlargement; fruit to be soft when coloring to stop Irrigation to increase sugar content of berries, accelerate coloration and ripening, and improve fruit quality.

Second, the watering period. 1 Watering before flowering. During the period from sap flow, sprouting to flowering, fertilization before combined fertilization of about 30-40 days before flowering is an effective measure to increase the fruit set rate of the grapes. Before the budding stage, water should be poured once, and then depending on the soil moisture content, whether or not watering is made. The relative water holding capacity in the soil field is maintained at 65%-70%. Minimize the number of watering after the shed, so as not to affect the temperature rise, if indeed the higher temperature, the lack of soil when the need for irrigation, it is best to take the inter-water approach, can effectively reduce the park temperature. Reduce the chance of disease infestation. 2 watering during fruit enlargement. From the physiological fruit drop to the coloring of the fruit, due to the variety, the short is about 50 days, and the long is more than 80 days. At this time, new shoots and young fruit grow vigorously, and the temperature keeps rising. The leaves have a large amount of water evaporation, which is most sensitive to moisture and nutrients. It is necessary to combine the application of fertilizer to pour fruit and water and then water according to the specific situation, so that this period The relative water holding capacity in the soil is between 75% and 80%.

Third, the appropriate control of water 1 flowering control of water from the initial flowering grapes to the final flowering period of about 10-15 days, excessive humidity affect the fertilization, the phenomenon of size, to control the water. In addition, watering during flowering can easily lead to excessive growth of nutrients and excessive consumption of nutrients. When it is severe, it will affect pollen germination and flower buds, resulting in reduced yields. 2. Berry coloring period Control of water Grape fruit coloring period is not long, from initial coloration to harvesting. For 20-30 days, try not to water.

Fourth, the watering time The watering time in one day is not suitable when it is not heated before the sunrise or after sunrise. If the watering in the afternoon should be performed after sunset or without direct sunlight, it should not be done when the light is strongest and the indoor temperature is the highest. After each irrigation, the soil should be loosened in time. To increase the air permeability of the soil.

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