Organic-inorganic mixed fertilizer containing alginic acid and production method thereof

Abstract

The invention discloses an organic-inorganic mixed fertilizer containing alginic acid and a production method thereof. The organic-inorganic mixed fertilizer containing alginic acid comprises the following raw materials in parts by weight: 45-50 parts of carbamide, 18-20 parts of ammonium phosphate, 16-18 parts of potassium sulphate, 6-8 parts of seaweed fermentation residues, 8-10 parts of a seaweed synergist, 6-8 parts of a humic acid synergist, 3-5 parts of an EDTA chelated-state microelement fertilizer, 5-7 parts of plant ash, 3-5 parts of modified magnesia and 0.2-0.3 part of gibberellins. High-quality and high-effect synergist products are added into the technical field of value addition of the fertilizers, so that the high urease inhibition effect is achieved; the conversion from ammonium nitrogen to nitrate nitrogen is controlled; the utilization rate of the fertilizer is increased; the root growth of the crops is facilitated; the content of nutrient in the fertilizer is almost not influenced; the content of nitrogen in the value-added carbamide is not smaller than 30%; the organic-inorganic mixed fertilizer is obvious in synergistic effect and safe and effective in use; organic components are used for increasing the utilization rate of the fertilizer; inorganic components are used for improving the water-retaining property of the fertilizer; the action time of the fertilizer effect is prolonged; the absorption of nutrients in the crops is facilitated; the quality of agricultural products is improved.

Description

Technical field [0001] The invention belongs to the technical field of compound fertilizer, and specifically relates to an organic-inorganic compound fertilizer containing alginic acid and a preparation method thereof. Background technique [0002] The development of chemical fertilizers in China has gone through the development stage from ammonium sulfate and ammonium bicarbonate to high-concentration urea and fourth-generation nitrogen fertilizers. Phosphate fertilizers have developed from phosphate rock powder to superphosphate (or calcium magnesium phosphate fertilizer) to phosphate compound fertilizer and potash fertilizer. The application has gone through nearly 20 years from experimental demonstration to large-scale popularization and application. At first, plant ash, low-concentration potassium chloride, and phosphate compound fertilizer developed from low-concentration, single variety to high-concentration diversification, and the nutrient form is also constantly changing...

AI Technical Summary

Problems solved by technology

Due to technical limitations, the effect of increasing production is not very obvious

[0005] The second generation of fertilizer synergists: taking soil improvement and fertilization as the turning point, adding humic acid, lignin, microbial fertilizer, phosphate fertilizer coating, fertilizer coating, soil conditioning, etc. as the main means, such as humic acid urea, humic acid Compound fertilizer, sulfur-coated urea, large granular urea (trace amount of urea-formaldehyde), acidic soil improver, alkaline soil improver, silicate microbial agent, etc., but the technology content is relatively low, and the production is more troublesome

[0006] The third generation of fertilizer synergists: Due to the rapid development of science and technology, the research on fertilizer synergies has developed rapidly at this stage. With polymer materials, urease inhibitors, and nitrification inhibitors as the main means, coatings, wraps, etc. have appeared one after another. Urea formaldehyde, stable fertilizer, phosphorus activator, etc., but the function is relatively single

[0008] As we all know, the increase in food production over the years has mainly relied on the use of chemical fertilizers. However, the use of chemical fertilizers in my country has always been characterized by large amounts of fertilizers, excessive nutrient loss, low crop absorption and utilization, and environmental pollution and resource pollution caused by excessive fertilization. Waste and other issues

At the same time, the existing fertilizer synergists are produced using inorganic raw materials or artificially synthesized polymer materials, which have problems such as high cost, poor effect, toxicity, and affecting the nutrient content of fertilizers.

Images