How to improve the utilization rate of chemical fertilizer?

How to improve fertilizer utilization? Please introduce the method of fertilizer application can refer to the following methods to improve fertilizer utilization rate: according to the yield target, do a good job of balanced fertilization. In a certain range of fertilization, crop yield and fertilizer application amount is positively correlated. Excessive increase in total fertilizer or single fertilizer amount will lead to yield reduction due to loss of ecological balance of nutrient environment. Therefore, it cannot be said that the more fertilizer is applied, the higher the yield. It has been determined that for every 100 kg of rice produced, 1.85 kg of nitrogen, 0.85 kg of phosphorus pentoxide and 2.1 kg of potassium oxide need to be absorbed from the soil. For every 100 kg of lint produced, 12.0 kg of nitrogen, 4.0 kg of phosphorus pentoxide and 12.0 kg of potassium oxide are absorbed. Of course, when determining the amount of fertilizer, climate, soil, fertility and other factors should also be considered. Insist on deep fertilization and adjust fertilizer with water. Deep application of chemical fertilizer should be adhered to in production, so as to protect chemical fertilizer with soil cover and reduce volatilization and loss. When the moisture content is insufficient, it is necessary to irrigate and adjust the moisture content in an appropriate amount, so as to adjust the fertilizer with water. Organic fertilizer can enhance adsorption capacity. After chemical fertilizer and organic fertilizer are mixed, the available nutrients can be absorbed or combined by organic fertilizer, and then gradually released, which not only prolongs the fertilizer supply time, but also reduces the unnecessary consumption of nutrients. Improve fertilizer preparation and regulate fertilizer supply peak. The method comprises the following steps of: firstly, preparing a single fertilizer into a broad-spectrum compound fertilizer; secondly, preparing a special fertilizer according to the fertilizer requirement characteristics of crops; thirdly, preparing a quick-release fertilizer into a slow-release fertilizer by using a modification method; and fourthly, preparing an inorganic fertilizer and a biological organic fertilizer into a granular fertilizer with complementary advantages, and advancing or delaying the application time so that the fertilizer requirement peak and the fertilizer supply peak of crops are mutually connected, and the fertilizer efficiency is fully exerted. Click for more compound fertilizer application techniques Click for more fertilizer application techniques