Synergic composite nitrogen fertilizer and preparation method thereof

A technology of nitrogen fertilizer and nitrogen fertilizer synergist, which is applied in the field of agricultural materials, can solve the problems of affecting photosynthesis of crops, affecting protein synthesis, leaf veins turning green and yellowing, etc., and achieves the goal of improving food quality, increasing nitrogen fertilizer utilization rate, and enhancing cold resistance Effect

Inactive Publication Date: 2014-05-21
PIZHOU JINCHENG FERTILIZER IND CO LTD
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Problems solved by technology

When plants are deficient in magnesium, symptoms such as short plants, slow growth, chlorosis and yellowing of

Method used

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Embodiment Construction

[0025] The invention is a synergistic compound nitrogen fertilizer, which is mixed with the following raw materials in percentage by weight: 20-40% of urea, 25-50% of ammonium sulfate, 0-50% of ammonium chloride, and 10-20% of magnesium sulfate , and nitrogen fertilizer synergist 3-8%.

[0026] Wherein, the ammonium sulfate is a quick-acting physiologically acidic nitrogen fertilizer, which reacts acidicly in the soil, has stable physical and chemical properties, low hygroscopicity, does not condense quickly, and can provide sulfur elements to crops. Described ammonium chloride is the comparatively cheap nitrogen fertilizer kind at present, when providing cheap nitrogen element, also can provide trace element chlorine element to crop growth (when meeting chlorine-avoiding plants, can adjust formula flexibly, can not add ammonium chloride raw material). The magnesium sulfate can not only provide medium elements such as sulfur and magnesium to crops, but also provide a binder f...

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Abstract

The invention relates to a synergic composite nitrogen fertilizer and a preparation method thereof. The synergic composite nitrogen fertilizer is prepared by mixing the following raw materials in percentage by weight: 20-40% of urea, 25-50% of ammonium sulfate, 0-50% of ammonium chloride, 10-20% of magnesium sulfate and 3-8% of a nitrogen fertilizer synergist. The synergic composite nitrogen fertilizer provided by the invention not only can effectively improve the utilization of the nitrogen fertilizer, but also has the functions of supplementing secondary elements including sulfur, magnesium and the like; the synergic composite nitrogen fertilizer has the functions of rapid effect, slow release, long effect and the like, and has the effects of improving the yield of crops, improving the grain quality, overcoming the soil hardening, and enhancing the cold-resisting, drought-resisting and lodging-resistance capabilities of the crops.

Description

【Technical field】 [0001] The invention relates to a compound granular chemical fertilizer and a preparation method thereof, in particular to a synergistic compound nitrogen fertilizer with urea, ammonium sulfate, ammonium chloride and magnesium sulfate as main raw materials and a preparation method thereof, belonging to the technical field of agricultural materials. 【Background technique】 [0002] my country's fertilizer consumption accounts for one-third of the world's total fertilizer consumption, which is twice that of the United States. However, my country's fertilizer utilization rate is extremely low, especially nitrogen fertilizer is only 20% to 60%, and the average utilization rate is far lower than that of European and American countries. rate is only equivalent to 70% of the world average. Statistics show that the cost of fertilizer in my country is as high as 42% of the cost of agricultural production, and it is the most important part of investment for farmers at ...

Claims

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Application Information

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IPC IPC(8): C05G3/08C05G3/90
Inventor 丁保礼
Owner PIZHOU JINCHENG FERTILIZER IND CO LTD
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