Green improved fertilizer with ditch and pond sludge as base body and preparation method of green improved fertilizer

Abstract

The invention provides a green improved fertilizer with ditch and pond sludge as the base body, and relates to the technical field of fertilizer preparation. The fertilizer is prepared from 600-760 parts of sludge, 50-150 parts of calcium oxide, 1-1.5 parts of nickel sulfate, 50-150 parts of vermiculite powder, 50-100 parts of zeolite powder, 20-40 parts of soybean cake powder and 2-5 parts of borax. The fertilizer has the advantages that the soil green fertilizer is improved by returning sludge to fields, wherein the sludge is prepared by disinfecting, modifying, activating and curing sludge precipitated in ditches and ponds and using the sludge in cooperation with vermiculite and zeolite containing trace mineral elements; fields can be fertilized, nutrients are abundant, performance of soil is improved, the fertilizer can preserve moisture, resist drought and preventing pests, good harvest can be achieved by using a small amount of chemical fertilizer or using no chemical fertilizer, and the optimal technical scheme for protecting village cultivated lands and recovering the natural ecology with blue sky and green water is achieved.

Description

technical field [0001] The invention relates to the technical field of fertilizer preparation, in particular to a green improved fertilizer based on ditch and pond sludge and a preparation method thereof. Background technique [0002] As early as the 1960s and 1970s, agricultural farming did not use chemical fertilizers. At that time, farmyard manure (organic fertilizer) was used for planting, and farmers accumulated manure to make manure. When the winter was slack, the production team was organized to drain the water from the ditches and ponds. , dredging and returning to the field, that is: shoveling out the sludge deposited by the rainwater flow in the ditches and ponds and returning it to the field to supplement the fertility of the field. At that time, various plants were lush and lush, but the output was not too high Gao said that there were no good varieties at that time, and it had nothing to do with the growth condition. The growth condition represented the level of...

AI Technical Summary

Problems solved by technology

After decades of siltation in rural ditches and ponds, most of the ditches and ponds have been filled with sludge. Farmers have replanted plants on the filled ditches and ponds. It has been found through investigation that the chemical fertilizers and pesticides used in agricultural cultivation are denitrified when it rains. If there is no interception of ditches and ponds, it will directly flow into rivers and lakes, pollute the natural water system, and then be pumped into the city by the water supply company, expanding the source of pollution. If it is not treated early, the consequences will be disastrous. It is necessary to develop a green fertilizer for improving the soil by returning the ditch and pond sludge to the field to reduce the amount of use of fertilizers and pesticides on the water body and to restore the original rural ecological environment.