Organic-inorganic compound fertilizer with silkworm excrement and tobacco stems as organic raw materials and preparation method of organic-inorganic compound fertilizer

Abstract

The invention discloses organic-inorganic compound fertilizer silkworm excrement and tobacco stems as organic raw materials and a preparation method of the organic-inorganic compound fertilizer and belongs to the technical field of agricultural soil fertilizer. The compound fertilizer is prepared from, by weight, 5-40 parts of the silkworm excrement, 5-40 parts of the tobacco stems, 10-50 parts of urea, 6-40 parts of monoammonium phosphate and 12-50 parts of potassium sulphate. The compound fertilizer comprehensive in nutrition contains organic nutrition of the silkworm excrement and the tobacco stems and macronutrient elements, and the fertilizer has effects of improving loose soil, improving the content of organic matter, passivating heavy metals in soil, increasing fertilizer utilization rate, reducing use of the fertilizer, bettering soil fertility, increasing crop output, improving crop quality, avoiding underground insect and threadworm, improving soil ecology environment and the like; the fertilizer is in accordance with the national policy of double-reduction in national chemical fertilizers, soil is improved, laborsaving and timesaving effect is achieved, requirements of sustainable agriculture are met, and good prospect in future agricultural application is achieved.

Description

technical field [0001] The invention relates to a compound fertilizer and a preparation method thereof, in particular to an organic-inorganic compound fertilizer using silkworm excrement and tobacco stems as raw materials and a preparation method thereof, belonging to the technical field of agricultural soil fertilizers. Background technique [0002] In the past three decades, the use of chemical fertilizers and pesticides has increased year by year. In 2014, the use of chemical fertilizers in my country reached 59.959 million tons. Long-term application of chemical fertilizers and less or no application of organic fertilizers will not only cause serious consequences for agricultural production, but also lead to lower fertilizer utilization rates, damage and acidification of the soil structure of cultivated land, decreased soil productivity, intensified pests and diseases, and reduced crop yield and quality; Harm the environment and human health, pollute the soil, water, and...

AI Technical Summary

Problems solved by technology

Chinese patent 201510529354.X discloses an organic-inorganic compound fertilizer composed of 20% organic matter, 10% humic acid, 5% amino acid, 30% urea, 25% monoammonium phosphate, and 10% potassium chloride, which can promote wheat and Corn grows, but this formula is not suitable for chlorine-sensitive crops

Chinese patent 201410358261.0 discloses an organic-inorganic compound fertilizer. The raw materials are phosphoric acid, potassium chloride, zinc sulfate, glucose, sulfur, diatomaceous earth, ammonium sulfate, farmyard manure, trace elements and chlorothalonil, which can increase crop yield. and improve soil structure, but this formula is not suitable for chlorine-sensitive crops, and has no effect of repelling pests and reducing pesticide use

Chinese patent 201410311499.8 discloses an organic-inorganic compound fertilizer with a variety of organic sources, including power plant ash, rice husk, moso bamboo, river sludge, chicken manure, potassium fulvic acid, waste animal and vegetable oils, etc. The fertilizer will be effective after application It is fast and has a long fertilizer effect period, which can promote growth and increase income, but there is a potential threat of heavy metal pollution and antibiotic pollution to soil and crops

Chinese patent 201110275010.2 discloses a production method of organic-inorganic compound fertilizer using silkworm excrement as an organic raw material, which can promote crop growth, improve crop stress resistance, improve crop quality and soil physical and chemical properties, but it uses urea and phosphoric acid di Potassium hydrogen is the source of inorganic fertilizers. Potassium dihydrogen phosphate is expensive and expensive to use, which is not conducive to large-scale promotion and application, and it is difficult to manufacture high-potassium and low-phosphorus fertilizers for top dressing. It does not have the effect of avoiding pests and reducing the use of pesticides

But its disadvantages are: pure organic nutrition, low content of nitrogen, phosphorus and potassium macroelements, lack of nitrogen, phosphorus and potassium macroelements necessary for crops, large amount of use per mu, high cost of use, and it takes at least one month for crops to see the effect. Slow, difficult for farmers to accept, difficult to popularize

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