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Method for producing medium element coated fertilizer by enhancing ammoniated superphosphate through agricultural wastes and application

A superphosphate, element technology, applied in the direction of superphosphate, fertilizers made of biological waste, calcium fertilizers, etc., to achieve the effect of increasing the organic carbon pool, promoting the flow of plant cell protoplasm, and increasing yield

Inactive Publication Date: 2018-03-06
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In short, there is currently no solid medium-element calcium-magnesium fertilizer that can be used as a base fertilizer produced with calcium superphosphate as the main raw material on the market. Therefore, the author uses the recycling technology of agricultural waste, and the ammoniation of ordinary calcium superphosphate, Combining synergistic technologies such as chelation, granulation and coating to produce medium-element coated fertilizers, it is a new fertilizer mixed production method, which is beneficial to the reuse of medium and low-grade phosphate rock in my country and the sales of ordinary calcium superphosphate Has a promoting effect

Method used

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  • Method for producing medium element coated fertilizer by enhancing ammoniated superphosphate through agricultural wastes and application
  • Method for producing medium element coated fertilizer by enhancing ammoniated superphosphate through agricultural wastes and application
  • Method for producing medium element coated fertilizer by enhancing ammoniated superphosphate through agricultural wastes and application

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Effect test

Embodiment 1

[0060] Embodiment 1 (comparative example)

[0061] Simple synergistic production of calcium superphosphate, ammonification of powdered common calcium superphosphate, adding a small amount of solid binder to granulate, and finally coating. Specific steps are as follows:

[0062] (1) Ammonification of calcium superphosphate: Pass the calcium superphosphate produced by the sulfuric acid method through a 0.5mm sieve, take 900kg of superphosphate powder, and put it evenly into the rolling drum, and pass 42kg of ammonia water at a uniform speed during the rotation process. After fully reacting, keep it sealed for 18 hours to obtain ammoniated superphosphate.

[0063] (2) In step (1), add calcium carbonate 10kg, molasses powder 48kg successively, roll granulate, sieve, obtain 2.8~4mm particle, obtain fertilizer core 575kg (fertilizer granulation rate 57.50% after partial drying) , water content less than 10%).

[0064] (3) Stir 0.86 kg of potassium indolebutyrate, 0.86 kg of DA-6,...

Embodiment 2

[0067] According to the nutrient absorption law of crops, combined with the soil nutrient content and the optimal ratio range, the preparation of medium element (calcium) coated fertilizer products is as follows:

[0068] (1) Ammonification of calcium superphosphate: Pass the calcium superphosphate produced by the sulfuric acid method through a 2mm sieve, take 400kg of superphosphate powder, put it evenly into the rolling drum, and pour 32kg of ammonia water at a uniform speed during the rotation process, and wait until the material is fully After the reaction, keep it sealed for 12 hours to obtain ammoniated superphosphate.

[0069] (2) In step (1), add fermented chicken manure 150kg, molasses powder 40kg, anhydrous calcium chloride 150kg, magnesium nitrate hexahydrate 50kg, humic acid 30kg, amino acid 30kg, calcium carbonate 90kg, bentonite 26kg, Plant ash 2kg, rolling granulation, sieving to obtain 2.8 ~ 4mm particles, after partial drying to obtain 626kg fertilizer core (f...

Embodiment 3

[0073] According to the nutrient absorption law of crops, combined with the soil nutrient content and the optimal ratio range, the preparation of medium element (magnesium) coated fertilizer products is as follows:

[0074] (1) Ammonification of calcium superphosphate: Pass the calcium superphosphate produced by the sulfuric acid method through a 1mm sieve, take 394kg of superphosphate powder, and put it evenly into the rolling drum. After the reaction, keep it sealed for 24 hours to obtain ammoniated superphosphate.

[0075] (2) In step (1), add fermented chicken manure 150kg, molasses powder 50kg, anhydrous calcium chloride 98kg, magnesium sulfate monohydrate 98kg, magnesium oxide 10kg, humic acid 25kg, amino acid 35kg, calcium carbonate 79kg, 26kg of bentonite and 3kg of plant ash were rolled and granulated, and sieved to obtain 2.8-4mm particles, namely 638kg of fertilizer core. (The fertilizer granulation rate is 63.73%, and the water content is less than 10%)

[0076] ...

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Abstract

The invention discloses a method for producing medium element coated fertilizer by enhancing ammoniated superphosphate through agricultural wastes and application, and belongs to the industrial fieldof agricultural waste recycling and fertilizer production. The medium element coated fertilizer comprises a fertilizer core and a coated layer. The fertilizer core is prepared from ammoniated superphosphate, medium elements, fermented chicken manure, molasses powder, humic acid, amino acids, plant ash and solid binders. The coated layer is prepared from compound fertilizer wrapped oil, plant growth regulators, biological agents and anti-caking agents. The method for producing the medium element coated fertilizer by enhancing the ammoniated superphosphate through the agricultural wastes and application, firstly, can increase utilization of agricultural wastes; secondly, can solve a way out problem of mid low grade phosphate rock in China and increase sale rate of superphosphate. Thirdly, the produced medium element coated fertilizer contains various forms of calcium and magnesium sources, can significantly promote growth of roots and increase leaf length, width and yield of crops. Fourthly, the medium element coated fertilizer has both quick-acting and slow-effect functions, and can obviously increase nutrients usage efficiency.

Description

technical field [0001] The invention relates to the industrial field of agricultural waste recycling and fertilizer production, in particular to a method and application of using agricultural waste synergistically ammonified calcium superphosphate to produce medium amount element coated fertilizer. Background technique [0002] Superphosphate (SSP in short) is a traditional fertilizer in my country. It has the advantages of low price and the ability to provide calcium and sulfur to crops. As an important phosphate fertilizer, superphosphate has played a significant role in improving the fertility of cultivated land and increasing my country's grain production. However, due to the extensive application of high-concentration phosphorus compound fertilizers in recent years, the production and sales of superphosphate fertilizers have shown an obvious downward trend. During the 20 years from 1990 to 2010, the total output of phosphate fertilizer in my country (pure P 2 o 5 ) i...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B1/02C05G3/00C05G3/20C05G3/80C05G5/12C05G5/30C05C5/00C05C5/04C05C11/00C05D1/00C05D3/00C05D3/02C05D5/00C05D9/00C05F3/00C05F5/00C05F11/00C05C3/00C05F11/02C05F11/08C05F11/10
Inventor 纪海石沈宏
Owner SOUTH CHINA AGRI UNIV
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