Early film cooling. This spring, the temperature is obviously low, the temperature rises slowly, and the low ground temperature is not conducive to the colonization of vegetables. The delay of the planting period will cause the delay of the vegetable market, the time advantage of the city will not be able to play, and the economic benefits will be significantly affected. To this end, for the actual situation of low temperatures this year, scaffolds should be supported as soon as possible, cover the film as soon as possible to increase the temperature within the cultivation chamber, and create suitable temperature for the timely planting of seedlings.
Early watering protection. In winter and spring, the vegetable production areas in our province have a small amount of snowfall due to effective rainfall. After planting seedlings in early spring vegetables, they should generally be poured with headwaters. The amount of water is relatively large. After watering, it often leads to a drop in ground temperature. It is not conducive to vegetable seedlings growing as soon as possible, and it can easily cause freezing seedlings or aging seconds. To this end, watering should be done as soon as possible, first relieve the soil moisture, and then cover the greenhouse film to increase the temperature inside the shed. Wait until the seedlings are planted before pouring the masked water.
As a high-coated film. For planting eggplant, bell pepper, green pepper, cucumber, zucchini, tomato and other fruit and vegetable vegetables, such vegetables in the early spring due to the low temperature of the greenhouse, high humidity, often lead to tomato early blight, cucumber downy mildew, sweet pepper wilt disease and other diseases occur. In the cultivation, the planting mode should be changed. The traditional flat ridge cultivation is sorghum mulching cultivation, which can play a very good effect of increasing temperature and humidity, increasing the utilization rate of fertilizers, cultivating strong seedlings, reducing the incidence of diseases, and increasing yields. .
Apply base fertilizer. In early spring, the fruit and vegetable in the greenhouse is relatively high and the demand for fertilizer is large. It is very important to apply sufficient base fertilizer. The principle of fertilization should be based on the combination of organic fertilizer and chemical fertilizer. The organic fertilizer should be fully cooked, the base fertilizer should be sufficient, and the top fertilizer should be supplemented. . The vegetables with high yield of eggplant fruits mainly increase the use of phosphate fertilizer and potash fertilizer, and the leaf vegetable vegetables use nitrogen-based potash fertilizer. For the heavily-grown plots, if the soil is compacted or salinized, it is necessary to pay attention to the addition of biological bacterial fertilizer, which can improve the soil properties and improve the efficiency of fertilizer utilization. It is very effective in improving vegetable yield and improving quality. Big.
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