Watering method of Tomato in greenhouse

1. Watering according to the characteristics of different growth periods. When the tomato is planted, water is poured thoroughly, and the seedling slowing water is poured again 3-5 days after planting until the first panicle grows to the size of egg yolk. Due to the small foliar transpiration in the early stage of fruit, it is generally watered once every 7-10 days. With the growth of the plant, the number of fruits increases, and the foliar transpiration increases. The watering interval days should be shortened and the watering amount should be increased to keep the soil dry and wet.

2. Watering according to growth. Plant dark green, shiny leaves, heart leaves stretch, is the performance of suitable water. If the heart leaves do not shrink exhibition, leaf color dark green sunny leaves have a slight droop for water shortage performance, need to replenish water in time.

Third, watering time, should be selected in the sunny morning watering, watering after ventilation, moisture, such as watering in the afternoon, evening or rainy days, easy to cause excessive humidity in the greenhouse, causing downy mildew and other diseases. It is not suitable to water at noon, so as not to affect the physiological function of roots due to high temperature watering. Tomatoes should be watered before harvest to increase fruit yield.