In winter, the temperature is low, and the management of greenhouses enters a period of frequent problems. Many small leaves that have just grown out have become dry and the edges are shrunk. What are the diseases that have occurred in these phenomena?
According to these symptoms, it can be known that calcium deficiency. Calcium is a medium-sized element, mainly used to synthesize cell walls. Eggplant itself requires more calcium. Therefore, as long as one egg is deficient in calcium, it will affect the formation of cells, so it is curled on the leaves.
It is generally recommended that vegetable farmers, calcium fertilizers and boron fertilizers are supplemented, because boron fertilizer can promote the absorption of calcium fertilizer.
Calcium is an essential element of crops. Once it is lacking or unbalanced, it will cause malnutrition, reduce immunity, and be easily affected by various bacteria, resulting in a decline in the quality of the dishes.
The leaves of calcium-deficient eggplants will dry out, and such tissues are weaker and particularly susceptible to gray mold. Gray mold can spread with air and water sources, and it is difficult to control the source of infection in actual disease control.
Therefore, in the daily management of vegetable farmers, we must pay attention to observe the diseased plants, and once they are found, they should be removed in time and taken out of the shed for destruction.
In addition, management should pay attention to the cleaning of the petals. The flowers that are defeated are prone to gray mold, and the growers need to pick up the flowers and take the petals out of the shed to destroy them.
In the winter, the humidity in the shed is large, and some diseases of the positive situation will occur, so it is necessary to strengthen the prevention and treatment of diseases. Secondly, because the winter light is weak, if the crop is good, it is necessary to strengthen the nutrition.
For winter greenhouse crops, some biological agents can be applied, or some fertilizers containing biological agents can be used for the application. Promotes the growth of roots and promotes the absorption of nutrients.
The above is about the high-yield cultivation technology of greenhouse vegetables, for your reference, I hope to have some help for our growers.
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