Organic-inorganic high-nitrogen water-soluble fertilizer and preparation method thereof

Abstract

The invention discloses an organic-inorganic high-nitrogen water-soluble fertilizer and a preparation method thereof, which belong to the technical field of agricultural fertilizers. The organic-inorganic high-nitrogen water-soluble fertilizer is prepared from the following raw materials in parts by weight: 100 parts of biogas slurry, 20 to 50 parts of urea, 12 to 20 parts of inorganic potassium salt, 0.01 to 0.1 part of an inhibitor, 0.2 to 8 parts of humic acid, 0.5 to 10 parts of amino acid, 0.1 to 5 parts of chelated calcium, 0.02 to 2 parts of magnesium sulfate, 0.05 to 0.5 part of chelated iron, 0.03 to 0.5 part of chelated zinc and 0.02 to 1 part of chelated manganese. The fertilizer provided by the invention has the characteristics of quick-acting nutrition, high absorption and utilization rate, multiple nutrients and the like, and provides soil improvement and nutrient guarantee for high yield, quality improvement and efficiency improvement of crops and green sustainable development of soil environment.

Description

technical field [0001] The invention belongs to the technical field of agricultural fertilizers, and in particular relates to an organic-inorganic high-nitrogen water-soluble fertilizer and a preparation method thereof. Background technique [0002] my country is a big agricultural country and a country that consumes a lot of fertilizer. The water consumption in agriculture accounts for about 60% of the total water consumption. The annual chemical fertilizer consumption exceeds 60 million tons, and the fertilizer utilization rate is only 30% to 40%. Excessive use of chemical fertilizers, especially nitrogen fertilizers, not only leads to low fertilizer utilization efficiency, but also causes great environmental hazards, such as lake water eutrophication, red tide phenomenon, soil acidification, groundwater pollution, etc., which seriously affects agriculture, society and ecology of sustainable development. [0003] With the help of the pipeline irrigation system, according ...

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Problems solved by technology

However, the current conventional fertilizers have poor solubility, and the dissolved impurities can easily cause problems such as blockage of water pipelines and drip nozzles.

[0004] Water-soluble fertilizers can solve the above-mentioned problem of poor solubility of fertilizers. However, water-soluble fertilizers are still in the early stage of development, and the problem of poor fertilizer effects is common. In addition, the price is also very expensive. According to market research in Shouguang, Shandong, currently imported water-soluble fertilizers are imported from the United States. The products of Danish, Compoentec of Germany, Haifa of Israel, etc., domestic products of Shanghai Fangdian, Shenzhen Batian and other enterprises, the highest retail price of imported water-soluble fertilizers exceeds 40,000 yuan / ton, and the general price is around 30,000 yuan / ton