Compared with other vegetables, the root system of sweet pepper is underdeveloped, and the regeneration ability of the root system is weak after injury. In particular, the current high temperature and high ground temperature are not conducive to the normal growth of sweet peppers. Therefore, top dressing management should be more cautious. Only reasonable top dressing can effectively promote rooting, cultivate strong trees and increase yield.
1. Flush a small amount of fertilizer before fruiting to promote strong roots.
Generally speaking, it is not advisable to apply a large amount of chemical fertilizers before the sweet peppers bear fruit, otherwise the plants will easily grow. However, in summer, in the early stage of planting, sweet peppers tend to take root slowly due to high ground temperature and slow seedlings, so top dressing (mainly functional fertilizer) is needed to promote roots and seedlings. Generally, Dayuanxin Quick Gunner or Chitin combined with Fangrun (20-20-20) can be used for flushing to promote rooting. Dayuan new fast gunner uses 40-50 kg per mu, and Fangrun 5-10 kg.
2. At the beginning of the result, proper amount of fertilizer is used to promote the tree to attack the fruit.
The top dressing starts when the fruit sits as big as a walnut. The top dressing time should not be too early or too late. Too early, due to sufficient nutrition and water supply, the plant growth will affect the development of flowers and fruits; too late will easily affect the growth of the plant. At this time, top dressing can choose Fangrun (20-10-30), 10-15 catties per mu.
3. The result is a large amount of fertilizer in the peak period to protect flowers and fruits.
As the plant enters the fruit-bearing stage, the plant is mainly reproductive growth at this time, and the purpose of fertilizer flushing is mainly to ensure the normal expansion of the fruit and the normal differentiation of flower buds. Plants have a large number of results, and the amount of fertilizer required should be gradually increased. However, taking into account the high temperature in summer, it is not advisable to flush too much fertilizer at one time.
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