Fertilizer conservation nutrient soil prepared by biogas residues

Abstract

The invention discloses fertilizer conservation nutrient soil prepared by biogas residues. The nutrient soil comprises the following components: 6-15 parts of biogas residues after air-dried crushing,2-5 parts of sawdust, 20-50 parts of soil, 3-9 parts of bone meal, and 5-20 parts of a water retaining agent. The fertilizer conservation nutrient soil has the following advantages: the nutritional value of the biogas residues is fully utilized, the fertilizer conservation nutrient soil prepared by adding the bone meal, sawdust and other organic materials into the biogas residues can fully meet plant growth requirements, and so plants cultivated by the nutrient soil are excellent in growth, thick in roots and high in germination rate of vegetables and fruits; and the fertilizer conservation and water retention capacity of the nutrient soil are improved by adding the water retaining agent, thereby realizing the comprehensive utilization and resource utilization of the biogas residues.

Description

technical field [0001] The invention relates to a fertilizer-preserving nutrient soil, in particular to a fertilizer-preserving nutrient soil prepared by utilizing biogas residues. Background technique [0002] my country's biogas project has a history of more than ten years. Biogas is an ideal natural gas, mainly used as fuel and power generation. The residue of biogas fermentation (biogas slurry and residue) contains a lot of nutrients, including rich nitrogen , phosphorus, potassium and other nutrients. [0003] However, if these biogas slurry and residues are stacked randomly, the biogas slurry and residue that cannot be treated in time will easily produce stench and affect the living environment. If the biogas slurry and residue flow into rivers and lakes due to rainwater washing, it will inevitably cause eutrophication. It can be seen that if the biogas slurry and residue are not properly utilized, it will seriously affect people's living environment and ecological env...

AI Technical Summary

Problems solved by technology

[0003] However, if the biogas slurry and residue are stacked randomly, the biogas slurry and residue that cannot be treated in time will easily produce stench and affect the living environment. If the biogas slurry and residue flow into rivers and lakes due to rainwater washing, it will inevitably cause eutrophication

It can be seen that if the biogas slurry and residue are not used reasonably, it will seriously affect people's living environment and ecological environment, and eventually cause secondary pollution.