Odorless, long-acting, and disease preventing organic fertilizer based on sludge and fruit residues

Abstract

The invention discloses an odorless, long-acting, and disease preventing organic fertilizer based on sludge and fruit residues. The organic fertilizer comprises following components in parts by weight: 100 to 150 parts of sludge, 100 to 150 parts of fruit residues, 10 to 15 parts of oil cake residues, 20 to 30 parts of sophora alopecuroides, 20 to 30 parts of carpesium abrotanoides, 30 to 40 partsof traditional Chinese medicine dregs, 20 to 30 parts of waste oil, 5 to 10 parts of milk, 5 to 10 parts of vinasse, and 1 to 2 parts of microbial inoculant; wherein the live bacterium concentrationof the microbial inoculant is 1*10<13> cfu / mL, the water content of a mixture of sludge and fruit residues is controlled in a range of 45 to 50%, the pH of the sludge is 8-9, the water content of fruit residues is 15-30%, and the pH of fruit residues is 5-5.4. The provided organic fertilizer overcomes the problems that city sludge comprises harmful bacteria and nematodes and is stinky and the pH of fruit residues is low, is rich in nutrients, can prevent diseases, and is stable and long-acting.

Description

technical field [0001] The invention relates to the field of odorless organic fertilizers, in particular to an odorless and disease-preventing organic fertilizer. Background technique [0002] Organic fertilizer is a carbon-containing material processed from biomass, animal and plant waste, and plant residues; it is rich in various nutrients, provides a comprehensive nutrient supply for crop growth, and can promote the reproduction of microorganisms and improve soil It is a long-term and environmentally friendly fertilizer with excellent physical and chemical properties. [0003] Municipal sludge is the residue after urban sewage treatment. A medium-sized city can discharge 100,000 tons of sludge every year. Therefore, how to use new development concepts to make green and effective use of municipal sludge is currently a hot topic of discussion. First of all, sludge is rich in nutrients and can improve the soil. Therefore, if the sludge can be effectively used in organic fer...

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Problems solved by technology

[0007] In order to solve the problem that the pH of the pomace is low and difficult to use, 100-150 parts of municipal sludge with a pH of 8 to 9 is used in the present invention to neutralize the pomace, so as to improve the inability of decomposing fungi to improve the pH of the pomace. The problem of survival; at the same time, the aromatic substances contained in the pomace can suppress the foul smell of the sludge; inedible waste oil, oil cake residue and milk components are also used in this formula to further suppress the foul smell of the sludge; finally The organic fertilizer prepared by the present invention has no odor through the fermentation process; the use of waste oil and milk can further ensure the long-acting fertilizer; It is the waste left over from oil extraction, which is rich in carbon, phosphorus and potassium elements; milk is also rich in protein, which can further increase the carbon-nitrogen ratio in the fertilizer and enrich the nutrition of the fertilizer. The inventor finally prepared it by combining the above ingredients Organic fertilizer with a validity period of up to 36 months

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