1, to avoid direct application of

, secondary dilution of water-soluble fertilizer is higher in nutrient content than general compound fertilizer, and the dosage is relatively small. Direct application of water-soluble fertilizer is easy to cause burning of seedlings, root injury, weak seedlings and other phenomena. Secondary dilution is not only beneficial to uniform application of fertilizer, but also can improve fertilizer utilization rate.

2, a small amount of multiple applications

due to the rapid effect of water-soluble fertilizer, it is difficult to survive in the soil for a long time, a small amount of multiple applications is the most important fertilization principle, in line with the characteristics of plant roots uninterrupted absorption of nutrients, reduce the loss of leaching caused by a large amount of one-time fertilization. Generally, the amount of each mu is 3~6kg.

3, pay attention to nutrient balance

water soluble fertilizer is generally applied by pouring, spraying, or mixing it into water, along with irrigation (drip irrigation, sprinkler irrigation). It should be reminded that when using drip irrigation fertilization, due to the intensive and large amount of crop root growth, the dependence on soil nutrient supply is reduced, and more dependent on the nutrients provided by drip irrigation. If the water soluble fertilizer formula is not balanced, it will affect crop growth. In addition, water soluble fertilizer should not be applied with traditional irrigation methods such as flood irrigation or water irrigation to avoid fertilizer waste and uneven application.

4, combined with the application of

water soluble fertilizer for quick-acting fertilizer, generally can only be used as top dressing. Especially in conventional agricultural production, water soluble fertilizer can not replace other conventional fertilizers. It is necessary to combine base fertilizer with top dressing, organic fertilizer with inorganic fertilizer, and water-soluble fertilizer with conventional fertilizer, so as to reduce costs and give full play to the advantages of various fertilizers.

5, try to use only or mix with non-alkaline pesticides

vegetables when there is deficiency or poor root growth, many farmers often use the method of spraying water-soluble fertilizer to alleviate it. In this reminder, water-soluble fertilizer should be applied alone or mixed with non-alkaline pesticides as far as possible, so as to avoid precipitation due to the reaction of metal ions, resulting in leaf fertilizer or pesticide damage.

6. Avoid excessive irrigation

. When irrigation is mainly aimed at fertilization, the root layer can be deeply wetted. The depth of the root layer of different crops varies greatly. You can use a shovel to dig up the soil at any time to understand the specific depth of the root layer. Excessive irrigation not only wastes water, but also causes nutrients to be leached below the root layer, which can not be absorbed by crops and wastes fertilizer. In particular, urea and nitrate fertilizers (such as potassium nitrate, calcium ammonium nitrate, nitro phosphate fertilizer and water-soluble fertilizer containing nitrate nitrogen) in water-soluble fertilizers are easily lost with water.

7, Preventing Surface Salt Accumulation

Long-term use of drip irrigation and fertilization in greenhouses or greenhouses will cause surface salt accumulation and affect root growth. Drip irrigation under film can be used to inhibit salt migration to the surface.