Why greenhouse watering vegetables should not be watered
I. Why not water more
1. Regular watering will make the soil temperature unstable and low, which is not conducive to the growth of the roots of the vegetable seedlings. The performance is not suitable for hair roots, root systems, shallow roots, and thin stalks, which cannot meet the requirements of deep roots and strong seedlings. The seedlings are easy to fall down. . 2. Watering too much can easily cause low-temperature rooting. The ground temperature is lower than 12°C and the duration is long. The growth and development of seedlings are hindered. For a long period of time, no new roots, no root hairs, and root rot are rusted. The above-ground parts showed wilting, and finally the seedlings died to dry. 3. Due to the poor growth of roots and weak stalks, the ability to absorb water and nutrients was poor, their resistance to disease and insect resistance weakened, and they were susceptible to infection and pests. They did not meet the requirements for cultivation.
Second, how to water properly
1. Before planting vegetable seedlings, sole water should be poured to ensure the water requirement for seedlings. Covering the ridge, let the ground temperature rise and stabilize, and plant the seedlings. 2. When the seedlings are planted, the seedlings should be poured with water, but the seedlings should not be flooded with water, and the drip irrigation (watering of the planting points) or the roots of the film should be used for drip irrigation to make the root system of the seedlings well combined with the soil. 3. Usually do not watering seedling stage, promote the results of vegetables and then poured (chicken pepper, aubergine eggplant door, tomatoes have the first fruit, melons have bottom melon). 4. If the soil is too dry, it will affect the growth of the seedlings. Water must be supplied by shallow watering or drip irrigation. Do not flood the soil to reduce the soil temperature. 5. After the vegetables begin to grow, the demand for water and nutrients increases. At this time, the roots of the vegetables have grown and are robust and resistant to adverse environmental conditions. According to the requirements of different vegetables for water and nutrients, they are normally top-dressed with water.
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