Tomatoing techniques for different periods of time
Tomatoes have the characteristics of water, large water demand and strong drought tolerance. According to the relevant practical experience, the watering techniques of greenhouse tomatoes are as follows: Watering must be carried out according to the characteristics of different growth periods. Under normal circumstances, the tomatoes are planted while watering, and after pouring the water for 3 to 5 days, the seedling water is poured again, until the first ear is sitting and the size of the egg yolk is poured again. As a result, the early planting was small, the leaf transpiration was small, the number of fruits was small, and the ventilation was small. Generally, water was poured for 7 to 10 days (the water volume was small). Later, with the growth and development of the plant, the number of fruits increased, the ventilation increased, and the transpiration increased. The number of days in the watering interval should be shortened and the amount of watering should be increased. Keep the soil dry and wet (mainly wet), harvesting The soil should be kept moist to increase the weight of the single fruit. Watering according to the characteristics of the time. Wintering greenhouse-cultivated wintering tomatoes, in addition to pouring the planted water and timely cultivating and cultivating in the planting period, generally do not need to water the first spikes, and the mulch can be covered and moisturized after pouring the fruit water. Then carry out a small water under the membrane to avoid lowering the ground temperature. After the weather turns warmer, increase the amount of water to meet the growth and development of the fruit. Greenhouse tomatoes cultivated in early spring should be watered in time to meet their water needs. Watering according to the growth. The plant is dark green, the leaves are shiny, green and flat, and the heart leaves are stretched, which is an even and appropriate expression of moisture. If the heart leaves are not shrinking, the leaves are dark green, and the mild leaves are drooping on sunny days, and the water is required to be replenished in time. If the heart leaves are over-expanded, the leaves are large and thin, and the leaves are spit with too much water, which is a manifestation of excessive water, and should be controlled by water. Watering time in the greenhouse for one day. During the growth period, you should choose sunny watering in the morning. After watering, it should be ventilated and drained. It is not suitable to water in the afternoon, evening or rainy days. Otherwise, the humidity in the shed will be too large, causing downy mildew and other diseases. It is not suitable for watering at noon. In order to avoid the high temperature watering affecting the physiological functions of the root system; the weather is hot in the middle and late stages, and the greenhouse can be ventilated day and night. Water should be watered in the morning and evening to cool down. Watering during fruit picking. Tomatoes should be watered before harvesting, which increases the value of the fruit. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
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