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A kind of dual-enzyme synergistic slow-release urea and its preparation method

A slow-release urea and urea technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of nitrogen loss threatening the environment, polluting the environment, economic losses, etc., and achieve the goal of preventing leaching loss, excellent fertilizer efficiency, and extending the fertilizer effect period Effect

Inactive Publication Date: 2015-08-19
于素华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Second, nitrogen loss threatens the environment and causes pollution
In the process of applying urea, a large amount of nitrogen is lost, which not only causes huge economic losses, but also pollutes the environment

Method used

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  • A kind of dual-enzyme synergistic slow-release urea and its preparation method
  • A kind of dual-enzyme synergistic slow-release urea and its preparation method
  • A kind of dual-enzyme synergistic slow-release urea and its preparation method

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Embodiment Construction

[0039] Take by weighing urea 1000kg, amino acid trace element chelate, biological calcium magnesium phosphate fertilizer etc., its preparation method comprises the following steps:

[0040] (1) Polishing: Input 1000kg of ordinary urea into the turntable or drum, roll for a certain period of time, and grind away the rough edges and corners, so as to facilitate the coating;

[0041] (2) Acidification: input the polished granular fertilizer quantitatively into the acidification turntable, and spray 27kg of phosphoric acid with a specific gravity of about 1.5 while rotating at a speed of 40r / min;

[0042] (3) Coating: The coating agent is made by mixing 50kg of amino acid and trace element chelate and 150kg of calcium magnesium phosphate fertilizer. The acidified granular fertilizer is immediately input into the coating turntable, and sprinkled into the bag while rotating at a speed of 15r / min. Film agent (particle size>180μm), the film-forming reaction is very fast, and the mater...

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Abstract

The invention discloses a double-enzyme synergized sustain-released urea and a preparation method thereof. The double-enzyme synergized sustain-released urea is composed of urea, amino acid trace element chelates, and biological calcium, magnesium and phosphate fertilizer, and is prepared by the following processes of polishing, acidizing, coating, cover sealing, and powder applying. The urea can improve the utilization rate of nutrients in fertilizer, is capable of activating nutrients solidified in soils such as nitrogen, phosphate, potassium, and the like to make the nutrients to be absorbed and utilized by crops, and really achieves the goals of saving fertilizer and enhancing fertilizing effect. Other than the function of improving the fertilizer utilization rate and fertilizing effect, the double-enzyme synergized urea also has a self-biological control function, is capable of automatically controlling the releasing speeds of various nutrients according to the fertilizer requirement characteristic of crops in different growth phases so as to avoid the phenomenon that the crops overly grow in the front period, and the fertilizer is not adequate for the corps in the later period, can improve the disease resistance, stress resistance, and weatherability of the crops, and greatly reduces the affects brought by various disasters on the crops.

Description

technical field [0001] The invention relates to the technical field of fertilizer production, in particular to a novel fertilizer dual-enzyme synergistic slow-release urea and a preparation method thereof. Background technique [0002] Among the measures to increase agricultural production, the application of chemical fertilizers is the key to increasing and stabilizing production. Urea has become the main form of chemical fertilizer in the world because of its high nitrogen content, granular shape and convenient application. The proportion of urea in my country's nitrogen fertilizer is also rising. Therefore, while agricultural production is increasingly dependent on urea, some problems in the use of ordinary urea are becoming more and more serious, and the development and application of new urea is imperative. [0003] One is that the utilization rate of urea is low and the loss of fertilizer efficiency is serious. After ordinary urea is applied to the soil, it only tak...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/08C05G3/00C05G3/90
Inventor 于素华
Owner 于素华
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