Fertilizer slow-release long-acting agent and preparation process thereof

Abstract

The invention discloses a fertilizer slow-release long-acting agent which is low in cost, high in benefit and wide in application and has a urease inhibitor and a nitrification inhibitor, and naturalzeolite containing various trace elements used as a carrier to be matched with monoammonium phosphate, and a preparation process thereof. The synergist can be matched with any form of nitrogen fertilizer according to a weight ratio of 3-5:100 to form a long-acting nitrogen fertilizer or various compound special fertilizers. Compared with the same amount of fertilizer, the yield of crops can be increased by 10-15%. Fertilizer can be saved by 15-15% under same yield level condition, and the fertilizer slow-release long-acting agent is used as a base fertilizer to be deeply applied, so that the labor and the time can be saved. And the fertilizer slow-release long-acting agent is a product most suitable for small chemical fertilizer enterprise production and rural popularization and application.

Description

technical field [0001] The invention belongs to the technical field of agricultural chemical fertilizers, and in particular relates to a fertilizer slow-release long-acting agent and a preparation process thereof. Background technique [0002] my country is a developing agricultural country. The amount of chemical fertilizer used per unit is more than twice the world average, but the utilization rate of chemical fertilizer is low, only about 30%. (Ammonium bicarbonate 25%, urea 35%, ammonium sulfate 40%.) This figure is about 10 percentage points lower than developed countries. Therefore, improving the utilization rate of nitrogen fertilizer, reducing the amount of fertilization and reducing environmental pollution are important issues to be solved urgently in our country. [0003] There are two types of nitrogen fertilizer synergists widely used in my country at present: one is to use the current chemical product hydroquinone or dicyandiamide to mix 3-10% of the weight...

AI Technical Summary

Problems solved by technology

For example, in the first method, hydroquinone and urea are mixed directly, because the weight ratio of inhibitor to nitrogen fertilizer is very different (generally 1:200-300), and they are the same color, so it is difficult to mix evenly

In addition, the price of hydroquinone has risen in recent years, and the cost is getting higher and higher

The long-acting nitrogen fertilizer with inhibitors added by the second method cannot meet the different needs of different soils and different crops due to the relatively fixed ratio of inhibitors, and it is also difficult to exert the best benefits