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How to improve old vegetable fields
Experts said: First, we must increase farm fertilizer and improve soil fertility. Some farmers are influenced by the idea that there is no revenue from income, and income is less because of fertilizer. Applying chemical fertilizers all year round will not only produce high costs, but will also result in soil compaction and loss of fertility and fertility. In the garden base fertilizer, farmer's fertilizer must be applied more. Soil should be improved and humus should be increased so that factors such as water, fertilizer, gas, heat and bacteria in the tillage layer can be harmonized to create a temperature and humidity for the growth of the roots, stems and leaves of the vegetable seedlings. Suitable and well-fertilized soil environment. Second, we must use chemical fertilizers and improve them. The vegetable garden is not the same as the acidity, the chemical fertilizers used should also be different, otherwise it will make it more acidic or alkaline. Test strips can be used to determine soil pH. If the test paper is pink or red in its soil solution, it is acidic; if it is blue or dark blue, it is alkaline. Alkaline soil should be improved with lime (30-40 kg per mu) or ash (40-50 kg per mu) to make it into a near-neutral soil. Third, it is necessary to change crops and intercropping. Tomatoes, peppers, eggplants, potatoes, beans, peas, beans, melons, etc., such as continuous cropping, not only low yield, poor quality, and pests and diseases will be more and more serious. Therefore, vegetable gardens need to implement different crop rotations to improve the soil and avoid the lack of an element in the soil (because the same kind of vegetables, the fertilizer elements are the same), but also can reduce a certain The occurrence of pests and diseases and the accumulation of certain harmful (toxic) substances in the soil.