Method for producing organic high nitrogen fertilizer using agricultural solid waste and fertilizer products produced thereby

Abstract

The invention relates to a method for producing an organic high nitrogen fertilizer using an agricultural solid waste and fertilizer products produced thereby, which belongs to the field of resource processing of the agricultural solid waste. According to the method, animal excrement, crop straw, an inorganic nitrogen fertilizer and bean dregs are mixed according to a ratio of 70-80:10-20:1-8:5-10 (referring by dry weight) and fermented, and the organic high nitrogen fertilizer product is produced through composting, total nitrogen content is more than 4.3% (in the total nitrogen, more than 90% of content is organic nitrogen), and total nutrient exceeds 9%. Test results show that by applying the fertilizer on crops of strawberry, no-heading Chinese cabbage, asparagus and paddy rice, yield is increased by 5-10% by comparing with simple substance fertilizer or composite fertilizer with equal price, is increased by 20-35% as compared to a contrast, and product quality can be obviously improved.

Description

technical field [0001] The invention discloses a method for making organic high-nitrogen fertilizer from agricultural solid waste and the fertilizer thereof, which belongs to the treatment technology of agricultural solid waste resource, and is specially used for the treatment and utilization of livestock manure and crop stalks. technical background [0002] The Ministry of Agriculture's Nongfa [2001] No. 15 "Guiding Opinions on Controlling Fertilizer Pollution of Agricultural Products during the Tenth Five-Year Plan" emphasizes the development and utilization of organic fertilizers to improve soil fertility. The document pointed out that we should make full use of my country's rich organic fertilizer sources, vigorously promote the scientific accumulation technology of organic fertilizers, adjust the ratio of organic-inorganic nutrients, loosen and activate the soil, improve soil physical and chemical properties, improve soil fertility, reduce fertilizer pollution, and impro...

AI Technical Summary

Problems solved by technology

Although organic fertilizers have a significant effect on improving crop quality and flavor, the application of organic fertilizers is greatly restricted due to the obvious defect of low fertilizer efficiency.

[0003] Why is organic fertilizer not effective in increasing production? The reason is that the nitrogen content in organic fertilizers is too low, usually only about 2%, and the effect of increasing crop production is mainly reflected in the application of nitrogen. In view of this, the organic fertilizer products produced by many manufacturers are organic fertilizers in name. In fact, it is an organic-inorganic compound fertilizer (inorganic nitrogen fertilizer is added in the last granulation process of fertilizer manufacturing). When the country formulates the standards for commercial organic fertilizers, it only formulates the organic matter content and total nutrient content, while ignoring the total nitrogen. Therefore, the so-called organic fertilizer products on the market are very confused, and the problem that the organic nitrogen content of commercial organic fertilizers is too low has brought a great deal of trouble to the production of pollution-free agricultural products, green food and organic food in my country. trouble

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