Preparation method of special tobacco slow-release long-acting compound fertilizer

A compound fertilizer and slow-release technology, applied in the direction of urea compound fertilizer, inorganic fertilizer, ammonium salt fertilizer, etc., can solve the problems of affecting yield, lack of trace elements, low fertilizer utilization rate, etc., to improve yield and quality, and simple production process , The effect of high fertilizer utilization rate

Active Publication Date: 2013-05-22
SHIKEFENG CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 1. Multi-layer coating, complex production process, large investment and high production cost
[0011] 2. The coating material is difficult to degrade, and long-term use will have a negative impact on the soil; even pollute the soil and affect the quality of agricultural products
[0012] 3. The ratio of the main nutrient elements in the fertilizer d

Method used

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  • Preparation method of special tobacco slow-release long-acting compound fertilizer
  • Preparation method of special tobacco slow-release long-acting compound fertilizer
  • Preparation method of special tobacco slow-release long-acting compound fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Prepare the tobacco-specific slow-release long-acting compound fertilizer of the present invention according to the following methods and steps

[0084] ①. Preparation of potassium fertilizer and nitrogen fertilizer compound

[0085] First, after heating and melting 30 parts by weight of urea, add 10 parts by weight of ammonium sulfate and 30 parts by weight of potassium sulfate and mix uniformly to obtain potassium fertilizer and nitrogen fertilizer compound containing potassium, sulfur and ammonium, which are set aside;

[0086] ②. Preparation of mixed phosphate fertilizer

[0087] a. Preparation of apatite powder

[0088] will contain P 2 o 5 10%~20% apatite is ground into powder, the fineness of apatite powder is controlled to 100 mesh ±10, and it is reserved;

[0089] b. mix

[0090] Mix 35 parts by weight of diammonium phosphate, 25 parts by weight of calcium magnesium phosphate fertilizer and 40 parts by weight of apatite powder prepared in step a, and set a...

Embodiment 2～ Embodiment 7

[0110] According to the method and steps of Example 1, prepare the tobacco-specific slow-release long-acting compound fertilizer of the present invention according to the raw material formula of Table 1

[0111] Table 1

[0112]

[0113]

[0114] A slow-release long-acting compound fertilizer dedicated to tobacco is prepared; the obtained product has round granules and no peculiar smell;

[0115] The product quality has reached the following technical indicators:

[0116]

[0117] The application test proves that the yield of tobacco can be increased by 7.9% to 18.4%.

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Abstract

The invention relates to a preparation method of a special tobacco slow-release long-acting compound fertilizer. The special tobacco slow-release long-acting compound fertilizer belongs to mixtures of a plurality of fertilizers containing a material affecting nitrification of urea in soil and an un-specificness fertilizer component. The special tobacco slow-release long-acting compound fertilizer is prepared from the following raw materials in parts by mass: 20-45 parts of the urea, 10-20 parts of ammonium sulfate, 20-40 parts of potassium sulfate, 10-30 parts of mixed phosphatic fertilizer, 0.1-0.5 part of zinc, copper, boron and molybdenum additive, 6-12 parts of granulation addition agent and a right amount of water. The preparation method comprises the following steps of: (1) preparing a mixture of a potash fertilizer and a nitrogenous fertilizer; (2) preparing the mixed phosphatic fertilizer; (3) preparing mixed particles of each component of the compound fertilizer; (4) filming stearic acid; (5) dusting powder on a modified zeolite powder body material; and (6) screening. By utilizing the preparation method, conventional prejudices are overcome, the production cost is reduced, and environmental protection is facilitated. The invention provides the preparation method of the special tobacco slow-release long-acting compound fertilizer which is comprehensive in nutrition, excellent in slow-release performance and high in fertilizer using efficiency. By utilizing the special tobacco slow-release long-acting compound fertilizer, requirements on nutrient by tobacco can be fully met, the output of the tobacco can be improved, and the quality of the tobacco can be improved.

Description

technical field [0001] The invention relates to a preparation method of a slow-release long-acting compound fertilizer specially used for tobacco. It is a mixture of various fertilizers containing substances that affect the nitrification of urea in the soil and components without special fertilizer effects. Background technique [0002] Tobacco is an important food crop and economic crop, and its output and planting area have a clear upward trend. It plays an important role in people's livelihood and national economy. The economic benefit of tobacco depends on the yield and production cost of tobacco leaves. The quality of tobacco leaves is the goal that people relentlessly pursue. Effective use of limited land resources to improve the yield and quality of tobacco crops is the direction of people's efforts. [0003] Tobacco is a typical potassium-loving crop, and it needs to absorb most potassium elements during its growth. Potassium elements are known as tobacco quality...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05G3/00C05B3/00C05G5/30C05C3/00C05C9/00C05D1/02C05D9/02
Inventor 解永军吕庆淮邵明升吕瑞新许俊杰黄继尧杨明增王晨程玉林
Owner SHIKEFENG CHEM IND
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