The manufacturer of fertilizer applicator explained the disadvantages of over fertilization

Fertilization is a normal phenomenon in agricultural production, but in recent years, the phenomenon of "over fertilization" has become more serious, especially in the economic crop planting areas and vegetable protection cultivation, the harm caused by it has become increasingly obvious. In some areas, excessive fertilization has become the primary problem of blind fertilization. What is the harm of "over fertilization"? The fertilizer head manufacturer tells you.

1、 Hazards of excessive fertilization

1. The production capacity of the factory is weakened

According to Professor Zhang Fusuo, the leader of the National Soil Testing and Formula Fertilization Expert Group and the dean of the School of Resources and Environment of China Agricultural University, the impact of excessive fertilization on crops is mainly in two aspects: first, it is easy to lodging, and once lodging occurs, it will inevitably lead to grain yield reduction; Second, diseases and insect pests are easy to occur. Excessive application of nitrogen fertilizer will weaken the resistance of plants to pests and diseases, making them vulnerable to infection by pests and diseases.

2. Increase environmental pollution

3. Wasted a lot of resources

Nitrogen, phosphorus and potassium are the "three elements" of plant nutrition. Nitrogen in the atmosphere is a form of nitrogen that most crops cannot use. It can be converted into ammonia active nitrogen by consuming a lot of energy, and into other forms that can be used by plants as fertilizer. In the past, nitrogen fertilizer mainly came from oil, but now it depends on natural gas and coal, which is one of the reasons why the production cost of fertilizer remains high.

2、 How to apply chemical fertilizer rationally

1. Strengthen and improve the formula

Various technical measures for fertilization. In the process of formula fertilization, fertilizer parameters such as nutrient absorption per unit yield, soil nutrient utilization rate and fertilizer utilization rate should be fully improved. These parameters also change with the change of production conditions. On the basis of the original soil and plant nutrient demand test, new environmental condition analysis items (such as water quality, soil harmful substance content, chemical fertilizer and pesticide pollution, etc.) are added to continuously enrich and improve the fertilization parameters and optimize the formula fertilization.

2. Increase the application of organic fertilizer

Fermented and decomposed farm manure and organic fertilizer products can not only provide nutrition for crops, but also have a long-term effect. They can increase and renew soil organic matter, promote microbial reproduction, improve soil physical and chemical properties and biological activity, thereby improving soil fertility, improving fertilizer utilization, helping to promote crop growth and improve the quality of agricultural products.

3. Increase the amount of trace element fertilizer and biological fertilizer

Micro fertilizers can balance the nutrients needed by crops, while biological fertilizers can secrete physiological active substances through their own microorganisms. These active substances can fix nitrogen, release phosphorus, release potassium, decompose other trace elements in the soil, improve the utilization rate of chemical fertilizers and organic fertilizers, improve the physical and chemical properties of the soil, so that the soil can provide various nutrients for crops, promote crop growth, improve crop yield and product quality, At the same time, it can decompose harmful chemicals in the soil, kill harmful bacteria, and reduce chemical fertilizer and pesticide residues and harmful bacteria.

4. Coordinate the relationship between macroelements and microelements

Adding trace elements or spraying trace element growth agents and compound biological growth agents can balance the supply of nutrients, promote the rapid transformation of crop nutrients, reduce the accumulation of harmful substances, and is a good way to promote crop disease resistance, disease prevention, yield increase and quality improvement.