Ordinary water-soluble fertilizers may contain only one or two main nutrients due to their relatively simple raw material composition, and their fertilizer effect lasts for a relatively short period of time. However, water-soluble fertilizers with a large number of elements are mainly composed of nitrogen, phosphorus, and potassium, and are added with appropriate trace elements. They balance the ratio of multiple elements required by plants and can fully meet the needs of agricultural producers for high-quality and high-stability products.
Water-soluble fertilizers with a large number of elements contain nitrogen, phosphorus, potassium, as well as medium-sized elements such as calcium, magnesium, and sulfur, and some necessary trace elements such as boron, manganese, and iron. The total content of a large number of elements is not less than 50%, and the content of a single element is not less than 6%. Water-soluble fertilizers with a large number of elements are suitable for all fertilization systems and can be used for bottom application, flushing, drip irrigation, sprinkler irrigation, foliar spraying, etc., which can truly realize the integration of water and fertilizer, thereby achieving the effect of saving water, fertilizer, labor, and time.
In the process of using water-soluble fertilizers with a large number of elements, blindly increasing the amount of use should be avoided. Excessive application of fertilizers will not only cause waste, but may also cause damage to crops. Secondly, high potassium or ultra-high potassium fertilizers should not be blindly pursued. Although potassium plays an important role in the fruit expansion of crops, different crops have different requirements for nitrogen, phosphorus and potassium at different growth stages. Therefore, when choosing fertilizers, it is necessary to make a reasonable combination according to the crop type and growth stage.