The environment of eggplant in greenhouse is different from that of open field eggplant. Especially when the humidity is high, it is not conducive to the growth of eggplant. In the whole growth period, the demand for nutrition of eggplant is relatively large, and at each stage of eggplant. The amount of fertilizer required and the amount of fertilizer required are not the same, so reasonable and effective fertilization has a key role in whether the eggplant can achieve high yield and high quality. Then, let us take a look at the scientific fertilization method of greenhouse eggplant.
First, the base fertilizer of the greenhouse eggplant
The greenhouse eggplant wants to be fertilized scientifically, then the base fertilizer is the foundation, and the base fertilizer is applied. The organic fertilizer is applied 6000kg per mu, and then the appropriate amount of balanced compound fertilizer can be applied. However, the organic fertilizer of eggplant must be fully decomposed to prevent the infection of germs and eggs.
Second, the strong seedlings of the greenhouse eggplant
In the seedling stage of eggplant, more phosphorus fertilizer can be used to make early flowering results. The seedbed of eggplant in greenhouse can be applied with humic acid water soluble fertilizer, which can effectively promote the root growth of seedlings. When the eggplant seedling grows to 4-5 true leaves, if the lower leaves are lighter in color, the leaves can be sprayed with potassium dihydrogen phosphate to cultivate strong seedlings.
Third, the greenhouse eggplant to promote fruit fertilizer
When the "door eggplant" of the eggplant reaches the "eye-opening period", the fruit begins to grow rapidly, and the whole plant enters a period in which the fruit grows mainly. During this period, the plants grew vigorously and the amount of fertilizer needed increased. At this time, the first top dressing is called the fruit-feeding fertilizer, which is the key fertilization period and can be applied with water.
Fourth, the greenhouse eggplant expansion fertilizer
When the "to the eggplant" fruit is inflated, the "four-door bucket" begins to develop, which is the peak period of eggplant fertilizer. At this time, the second top dressing is carried out, that is, the eggplant fruit is swollen. At the same time, trace elements such as boron, calcium, magnesium and zinc should be applied in the foliar application.
Five, the fruit of the greenhouse eggplant
After the second top dressing of eggplant, about ten days before the last harvest of the solanaceous fruit, when each layer of fruit began to expand, it was chased about every 10 days, and the fat was chased about 5 times. In the fruit-bearing period of eggplant, it is necessary to prevent premature aging of eggplant plants.
6. Foliar fertilizer for greenhouse eggplant
Starting from the fruit setting period of the eggplant in the greenhouse, foliar fertilizer such as potassium dihydrogen phosphate can be sprayed according to the growth of the eggplant. It is usually used once every 7-10 days, and it can be used together with pest control.
The above is a related introduction to the scientific fertilization method of greenhouse eggplant. From these contents, it can be seen that the amount of fertilizer required for eggplant in the whole growth and development period is indeed large. This point is not to be ignored by farmers. Eggplant is enough fertilizer to make high-yield eggs.
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