The role of nitrogen, phosphorus and potassium

Nitrogen, phosphorus and potassium are the three major elements of plant growth, and their efficacy can be programmed into a jingle:

Nitrogen fertilizer makes leaves green and promotes plant growth.

Phosphate fertilizer makes flowers bloom brightly and fruits full and sweet.

Potassium fertilizer can make the stems strong and strengthen the disease resistance of plants.

The rational application of N, P and K can improve the yield and quality of crops and ensure the healthy growth of crops. When applying fertilizer, it is necessary to scientifically match the types and dosage of fertilizers according to the needs of different crops and soil conditions to avoid excessive or insufficient situations. At the same time, we should pay attention to the use time and method of fertilizer and the coordination with other agricultural measures in order to achieve the best fertilization effect.

in addition to nitrogen, phosphorus and potassium, plants also need the support of trace elements, such as iron, zinc and manganese. Although these elements are not needed in large quantities, they are also essential for plant growth and development. Therefore, in agricultural production, we should pay attention to the comprehensive supplement of various nutrient elements to provide adequate nutrient protection for plants.

Ways to help improve the utilization rate of NPK fertilizer:

1. Scientific fertilization: According to crop growth needs and soil conditions, a scientific fertilization scheme is formulated. Reasonable proportion of N, P and K fertilizers, grasp the time and dosage of fertilization, and avoid excessive fertilization. According to crop demand and soil conditions, reasonable proportion of nitrogen, phosphorus, potassium and other nutrients to ensure that crops get comprehensive and balanced nutrition.

2. Deep application of covering soil: The method of deep application of covering soil is used to apply fertilizer near the root system of crops, so as to reduce the loss of fertilizer and improve the absorption and utilization rate of fertilizer. Do not apply too much fertilizer to avoid fertilizer waste.

3. Fertilization combined with irrigation: Dissolving fertilizer in water during irrigation and applying it to soil with water can improve the permeability and diffusivity of fertilizer and promote crop absorption.

4. Adding organic fertilizer: Organic fertilizer is rich in organic matter and microorganisms, which can increase the number of organic matter and microorganisms in the soil, improve the soil's fertility preservation ability and permeability, and promote the absorption and utilization of nitrogen, phosphorus and potassium fertilizers.

5. Reasonable rotation: Adopting a reasonable rotation system to avoid planting the same crop continuously on the same plot can balance the nutrient demand in the soil and reduce the excessive input of N, P and K fertilizers.