Silicon-containing anti-caking granular macroelement formula fertilizer and preparation method thereof

Abstract

The invention discloses a silicon-containing anti-caking granular macroelement formula fertilizer which comprises the following raw materials in parts by weight. 25-55 parts of ammonium chloride, 5-15parts of ammonium nitrate, 10-20 parts of urea, 10-30 parts of amide nitrate, 30-50 parts of diamine phosphate, 10-25 parts of monopotassium phosphate, 30-45 parts of calcium superphosphate, 5-20 parts of potassium chloride, 15-30 parts of silicon-magnesium-potassium fertilizer, 5-10 parts of sodium silicate, 5-10 parts of dolomite, 5-15 parts of alkaline slag and 5-20 parts of a surfactant. Theinvention further provides a preparation method of the silicon-containing anti-caking granular macroelement formula fertilizer. The preparation method comprises the following steps: S1, mixing the rawmaterials including ammonium chloride, ammonium nitrate, urea, amide nitrate, diamine phosphate, monopotassium phosphate, calcium superphosphate, potassium chloride, the silicon-magnesium-potassium fertilizer and sodium silicate according to the weight ratio; and S2, putting an obtained mixture into a fertilizer dryer for drying. The formula is reasonable in structural design, and has the advantages that crops can absorb fertilizer more effectively and fully, and the anti-caking effect is excellent.

Description

technical field [0001] The invention relates to the technical field of macronutrient formula fertilizer, in particular to a silicon-containing anti-caking granular macronutrient formula fertilizer and a preparation method thereof. Background technique [0002] Macronutrient fertilizer means that in the dry matter components of crops, the content of nitrogen, phosphorus, and potassium is greater than 1%, which is called macroelement. The fertilizer containing a large amount of elements is called macroelement fertilizer, including nitrogen fertilizer, phosphorus fertilizer, and potassium fertilizer. It is the material basis of agricultural production and plays an important role in increasing crop yield, improving crop quality and improving soil fertility. The nutrient status of nitrogen, phosphorus and potassium in the soil and the demand of crops for nitrogen, phosphorus and potassium are the basis for the application of large-scale element fertilizers. basic basis. [0003]...

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Problems solved by technology

[0003] In the prior art, the anti-caking ability of the formula fertilizer with a large amount of elements is weak, and it only has a temporary effect. If you do not pay attention to the control of temperature and humidity, the formula fertilizer will still cause caking, and the existing formula fertilizer The utilization rate is not high, resulting in a certain proportion of economic losses. Therefore, we propose a silicon-containing anti-caking granular macronutrient formula fertilizer and its preparation method to solve the above problems

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