How to use the solanes and vegetables

Solanum vegetables mainly include tomatoes, sweet peppers and eggplants. The main characteristics of fertilization are: high yield and large amount of fertilizer; second, the application of organic fertilizer and chemical fertilizer, NPK fertilizer, medium and trace element fertilizers, especially special attention to potassium, calcium, magnesium, boron and other elements. Whether it is lacking; Third, because the fruit harvesting period is longer, it should be distinguished by the first fruit sitting and living. Before this, it is necessary to prevent the big water and big fertilizer from causing the falling flowers and fruit, and then the water and fertilizer should be combined and applied in small quantities.

Fertilization requirements for the cultivation of solanaceous vegetables in open field and in greenhouse cultivation are different. For open vegetables, the base fertilizer is 4,000-6,000 kg of organic fertilizer, 9-11 kg of urea, 12-17 kg of diammonium or 35-50 kg of superphosphate, and 15-20 kg of potassium sulfate. When applying top dressing, if the soil is thin and weak, the seedlings can be applied with 3-5 kg ​​of urea; from the beginning of the first fruit (ie, the first ear of the tomato is large; the bell pepper sits; the eggplant The genus of the genus is applied to the 2-3 times of fertilizer, and each application of urea and potassium sulphate is 8-12 kg per mu, of which the potassium fertilizer is less applied in the northern region, more in the southern region, or the application of high nitrogen and potassium in the mu Mixed fertilizer 10-15 kg.

The greenhouse vegetable yield is higher than that of the open field, and the result period is long. Therefore, the application amount of organic fertilizer is large, and the number of top dressing increases. It is recommended to apply 8,000-10,000 kilograms of organic fertilizer per mu, and after fruit setting, topdressing 5-8 times, depending on the length of the fruit. When topdressing, the film can be peeled off on the side of the ditch, and the soil can be applied after the ditch is applied. However, it is necessary to select a high-nitrogen-potassium compound fertilizer with good water solubility, and apply 10-15 kg per mu. After dissolving, take the upper supernatant, or put the fertilizer in a nylon bag, pour it in water, and dissolve it in water.

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