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First of all, soil fertility should be improved.
Second, we must determine the optimal amount of fertilizer. In China's vegetable production, the nutrient balance method is mainly used to estimate the amount of fertilizer application. Fertilization amount (kg/mu) = nutrient content (kilogram/mu) required for planned production - supply component (kg/mu) other than fertilizer/yield utilization rate (%).
Third, determine the fertilization method according to the type of vegetables. Leafy vegetables use leaves as products, and the effect of applying nitrogen fertilizer is obvious. Fruits and melons are supplied to the market by fruit. In addition to nitrogen fertilizers, phosphorus and potassium fertilizers are also needed.
Fourth, the fertilization method is determined according to the cultivation environment. For example, when the temperature of autumn cabbage is lower than 10 °C, it is not advisable to apply urea fertilizer. Fertilization should also consider the soil moisture. When the water is sufficient and the light is good, the fertilization effect is best.
Fifth, determine the fertilization method based on the characteristics of the fertilizer. Inorganic fertilizer is mostly used as a top dressing, and some inorganic fertilizers can also be used as a base fertilizer. Refined organic fertilizers such as oil slag and cake fertilizer can be applied to the roots of vegetables at the end of the seedling stage, ditching or opening.
Sixth, the facility vegetable soil fertility and balanced fertilization technology. It is necessary to change the current practice of producing heavy chemical fertilizers, heavy nitrogen fertilizers and light phosphate fertilizers, adopting heavy organic fertilizers, increasing fertility, and implementing soil testing and formula fertilization.
Vegetables have high yield and fertilization skills
For more than a decade, Shandong's vegetables have ranked first in the country in terms of area, output, and output value. However, due to improper fertilization, the production of vegetables in recent years, especially the production of solanaceous fruits and melons, and the deterioration of quality are very common. serious. Therefore, starting from many aspects, it is necessary to promote scientific fertilization techniques for vegetable cultivation.
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