Pay attention to the uniformity of fertilization. In principle, drip irrigation and fertilization should be as slow as possible, especially for elements with poor mobility in the soil (such as phosphorus), prolonging the fertilization time can greatly improve its utilization rate. Drip fertilization in the dry season is recommended to be completed within 2 to 3 hours. The soil is not short of water. Under the premise of ensuring uniformity, the sooner the better.
Avoid overwatering. Generally, it is enough to keep the depth of the root layer moist. The depth of the root layer varies greatly depending on different crops. You can use a shovel to dig the soil at any time to understand the specific depth of the root layer. Excessive irrigation not only wastes water, but also leaches nutrients below the root layer, wastes fertilizer, and reduces crop production. Especially urea and nitrate nitrogen fertilizers (such as potassium nitrate, calcium ammonium nitrate, nitrophosphate fertilizers and water-soluble fertilizers containing nitrate nitrogen) are very easy to lose with water.
Avoid direct flushing and use the second dilution method. Because water-soluble fertilizers are different from ordinary compound fertilizers, farmers cannot use conventional fertilization methods, resulting in uneven fertilization, burning seedlings, root damage, and weak seedlings. Secondary dilution ensures uniform fertilization and improves fertilizer utilization. Rate.
Strict control of the dosage, a small amount and multiple times, is the most important principle, which can meet the characteristics of plants' uninterrupted absorption of nutrients. Water-soluble fertilizers have higher nutrient content than ordinary compound fertilizers, and the dosage is relatively small. Because of its quick effect, it is difficult to persist in the soil for a long time, so the amount of fertilizer should be strictly controlled.
Functional liquid water-soluble fertilizers (amino acids, humic acids, and organics) will be the most competitive water-soluble fertilizer products in the future, and large-scale operations will lead to lower costs for water-soluble fertilizers with a large number of elements, and gradually realize package fertilization Combination of product portfolio and technical services, which are likely to stimulate the development of functional water-soluble fertilizer products market.
