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

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...

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

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