Composite nitrogen fertilizer synergist, preparation method and application thereof

Abstract

The invention relates to the field of nitrogen-containing chemical fertilizers, particularly to a composite nitrogen fertilizer synergist, a preparation method and application thereof. The composite nitrogen fertilizer synergist is characterized by comprising 1-35 parts of 1, 3, 4-eugenol, 1-30 parts of 2-methoxy-4-(2-propenyl) phenol, 5-50 parts of dimethyl sulfoxide, 3-35 parts of sodium borate and 1-25 parts of a eutectic of 2-methoxy-4-(2-propenyl) phenol and dimethyl sulfoxide. The composite nitrogen fertilizer synergist disclosed by the invention has a bidirectional regulation and control function, not only can inhibit the hydrolysis of urea to play a urease inhibition role, but also can delay the conversion from ammonium nitrogen to nitrate nitrogen to play a nitrification inhibition role, and further has advantages of low use amount, environment protection and the like.

Description

technical field [0001] The invention relates to the field of nitrogen-containing chemical fertilizers, in particular to a compound nitrogen fertilizer synergist and its preparation method and application. Background technique [0002] Improving crop productivity is one of the main ways to solve the current situation of food shortage caused by the rapid increase in the world population. It is estimated that by 2050, the world population will reach 9.7 billion, which poses a huge challenge to the realization of food security. The application of a large amount of nitrogen fertilizer, while promoting food production, has also paid a huge price to human society. The loss rate of nitrogen fertilizer in the agricultural system is nearly 70%. It not only causes low utilization rate of nitrogen fertilizer, but also causes many environmental problems such as eutrophication of water body and greenhouse gas emission. There are many ways to improve nitrogen use efficiency and reduce the...

AI Technical Summary

Problems solved by technology

But these inhibitors themselves also have many insurmountable shortcomings

These include short action time, great influence by temperature, high pressurization pressure, easy volatilization, cannot be added to solid fertilizers, large dosage and high cost

When urea, which is the most widely used in agricultural production, is used as a fertilizer, in order to slow down the hydrolysis rate of urea and its hydrolyzate NH 4 + The nitrification rate of urease inhibitors is usually applied together with nitrification inhibitors. Two or more different types of inhibitors are required to regulate the enzyme and some microbial activities in the soil. However, the simultaneous application of two inhibitors will not only significantly increase the The cost may also cause the two inhibitors to interact to reduce the effect. At the same time, due to the different properties of different materials, the requirements for processing conditions are also different, which affects the processing efficiency and poses a potential threat to the soil environment and food safety.