Due to phytotoxicity, mechanical damage, insect pests, and lack of nutrients, "headless seedlings" are formed. In the case of insufficient seedlings, "headless seedlings" can be planted, but management should be followed up after planting, which can promote the rapid recovery of normal plant growth. Concentrate the "headless seedlings" to facilitate management. When the normal seedlings in the shed are not short of water, they can be watered separately and biological bacterial fertilizer can be applied along with the water. Timely application of whole nutrient foliar fertilizer to supplement nutrition. If the temperature is too high, it will inhibit the absorption of boron, calcium and other elements in vegetable plants. At this time, the spraying of whole nutrient foliar fertilizers, especially foliar fertilizers containing boron and calcium, can promote the normal growth of the seedlings as soon as possible. In order to regulate the growth of plants, it is also possible to spray sodium nitrophenolate, alkaloids and other drugs to control the growth of vegetables. The “headless seedlings†have no growth points in the early growth stage, and more nutrients are distributed to the root system, which makes the root systems well developed. Later, the lateral branches grow vigorously and grow, and when properly managed, they can catch up with other plants.
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