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

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

Active Publication Date: 2016-02-24
SHIKEFENG CHEM IND CO LTD
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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 does not match the needs of each stage of tobacco growth, and the fertilizer utilization rate is low
[0013] 4. Lack of essential trace elements, incomplete nutrition, affecting yield increase
[0014] 5. The preparation method of tobacco-specific slow-release long-acting compound fertilizers that can simultaneously improve tobacco yield and quality is rare

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Prepare the tobacco-specific slow-release long-acting compound fertilizer of the present invention according to the following methods and steps

[0088] ①. Preparation of potassium fertilizer and nitrogen fertilizer compound

[0089] 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;

[0090] ②. Preparation of mixed phosphate fertilizer

[0091] a. Preparation of apatite powder

[0092] 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;

[0093] b. mix

[0094] 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

[0118] 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

[0119] Table 1

[0120]

[0121]

[0122] A slow-release long-acting compound fertilizer dedicated to tobacco is prepared; the obtained product has round granules and no peculiar smell;

[0123] The product quality has reached the following technical indicators:

[0124] N element content%≥15

[0125] P 2 o 5 Content%≥5

[0126] K 2 O content%≥10

[0127] Particle size mm2~4.75mm

[0128] Moisture content wt% ≤ 2.0.

[0129] The application test proves that the yield of tobacco can be increased by 7.9%-18.4%.

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PUM

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Abstract

The present invention provides a method for preparing a special slow-release long-acting compound fertilizer for tobacco. The compound fertilizer is a mixture of a plurality of fertilizers containing substances that affect nitrification of urea in soil and ingredients with no special fertilizer effect. The compound fertilizer is prepared with the following raw materials in parts by mass: 20-45 parts of urea, 10-20 parts of ammonium sulfate, 20-40 parts of potassium sulfate, 10-30 parts of a mixed phosphate fertilizer, 0.1-0.5 part of zinc, copper, boron, and molybdenum additives, 6-12 parts of a granulation additive, and a proper amount of water. The preparation method comprises the following steps: (1) preparing compounds of a potash fertilizer and a nitrogen fertilizer; (2) preparing a mixed phosphate fertilizer; (3) preparing mixed particles of each ingredient of the compound fertilizer; (4) coating with a stearic acid; (5) spreading powder of a modified zeolite powder material; and (6) screening. The method overcomes conventional prejudices, reduces the production cost, and is environment friendly. Therefore, the present invention provides a method for preparing a special slow-release long-acting compound fertilizer for tobacco, which is comprehensive in nutrition and excellent in slow-release performance, can fully satisfy demands for nutrients by tobacco, and has high fertilizer utilization, thereby improving both yield and quality of tobacco.

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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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
CPCC05B3/00C05G5/30C05C3/00C05C9/00C05D1/02C05D9/02
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 CO LTD