According to the requirements of crops, the author believes that water-soluble fertilizers with large elements must have the following technical characteristics at the same time:
● The composition of water-soluble chelated trace elements added to the composition should avoid antagonistic effects with phosphorus.
● For crops, it has the characteristics of stress resistance and yield increase, which can significantly improve the photosynthesis of crops, improve the yield and quality of crops, increase sugar content, enhance cold resistance, drought resistance, disease resistance, lodging resistance and other stress resistance, and prolong the shelf life.
● The addition of high-potassium formula can quickly meet the demand for potassium when fruits and grains are expanded, increase the sweetness of fruits, improve fruit coloring, and prolong storage time.
● In the process of fertilization, it is necessary to combine the characteristics of water-soluble fertilizers and master certain fertilization skills. Avoid direct flushing, and take the second dilution method. Because water-soluble fertilizer is different from the general compound fertilizer, so farmers can not follow the conventional fertilization method, resulting in uneven fertilization, burning seedlings and hurting roots, seedlings and seedlings are weak, and the secondary dilution ensures uniform fertilizer and improves fertilizer utilization. It is also necessary to strictly control the amount of fertilizer. A small amount of many times is the most important principle, which can meet the characteristics of uninterrupted nutrient absorption by plants. The nutrient content of water-soluble fertilizer is higher than that of general compound fertilizer, and the dosage is relatively small. Because of its strong quick effect, it is difficult to survive in the soil for a long time, so the amount of fertilizer should be strictly controlled.
