The application method of flushing fertilizer with water is also called “rush fertilizationâ€. It is a topdressing method that provides supplemental nutrition during the rapid growth of crops. Since it is supplementary fertilization, it cannot replace the main fertilization methods such as base fertilizer. However, because this method is convenient and fast, it is widely used in vegetable fields and irrigated fields for growing cash crops and special food crops. At present, flush fertilization is mainly used for fertilizing in the strong season of vegetable crop growth, and is widely used in greenhouse cultivation and open field vegetables. Due to the fast fertilizing effect of fertilization, the effect is generally visible from 2-3 days to 3-5 days after flushing, which is reflected in the obvious changes in leaf color and plant height, which is in line with the psychology of some growers who are eager to achieve success. Has been widely adopted. Taking into account the high-yield, high-quality, high-efficiency crops and environmental protection of agricultural production and the lack of rural labor, in order to give full play to the advantages of fertilization and avoid its disadvantages, the technical essentials of flush fertilization are briefly described below: Select fertilizer type Only water-soluble fertilizers can be applied with water. Urea, ammonia, ammonium sulfate, and ammonium nitrate are commonly used in nitrogen fertilizers; potassium chloride and potassium sulfate are used in potassium fertilizers, and potassium nitrate is also available. And even if the phosphate fertilizer is water-soluble phosphorus monoammonium and phosphorus diammonium, do not flush it, because the phosphate fertilizer has poor mobility after being dissolved, it is easy to be fixed, and it cannot penetrate into the root layer with water. The best way to apply phosphate fertilizer is to bury it in layers to increase its utilization. Fertilization period Flush fertilization is better applied during the crop growth period, for example, on fruits and vegetables, it can be applied during the full fruit period and after picking fruits. Another example is Chinese cabbage. In planting in autumn, you should choose to apply it during the wrapping period and when the temperature drops. Other vegetable crops should also be applied during the growing season. Controlling irrigation volume Prevent flooding under flooding. During canal irrigation, the trench depth is appropriate to the amount of water to prevent nutrients dissolved in the water from being lost with the water. Many farmers like to use this method of topdressing, it is effective to use it well. However, in order to pursue the surface effect, regardless of cost, one-sided use of a large amount of nitrogen fertilizer and abuse of fertilization will lead to excessive growth of vegetables, reduced quality, reduced fertilizer utilization, large nitrogen loss, and exacerbated salinity of soil properties. Some people use granulated high-concentration compound fertilizers after smashing. Some people use undecomposed and insoluble solid organic fertilizers or microbial preparations as fertilizers. These are inappropriate. In short, the following points should be mastered in principle: the method of flushing and fertilizing should be used in a timely and appropriate amount, mainly for topdressing in intensive vegetable cultivation, and mainly topdressing nitrogen and potassium. Second, there are four kinds of fertilizers that should not be applied: one does not apply phosphorus; two does not apply granular compound fertilizer; three does not apply solid organic fertilizer; and four does not apply microbial preparation or fertilizer. Disclaimer: Some articles on this website are transferred from the Internet. If you have third party legal rights, please inform this website to deal with them. phone Nuts are a group of cleistoses that have a hard skin and contain a single seed. It is the essence of plants, rich in nutrition, containing higher minerals, vitamins, oil and protein, eating more can promote growth and development, increase physical fitness. Common nuts include walnuts, peanuts, almonds, cashews, macadamia nuts, pistachio nuts and so on. Nuts, Almonds,Walnuts,Pistachio nuts,Macadamia nuts Xi'an Gawen Biotechnology Co., Ltd , https://www.seoagolyn.com