Phytoremediation soil auxiliary fertilizer

Abstract

The invention discloses a phytoremediation soil auxiliary fertilizer. The phytoremediation soil auxiliary fertilizer is prepared from, by weight, 11-13 parts of toosendan fruit sawdust, 36-38 parts of rape seed cake powder, 7-9 parts of peat soil, 5-6 parts of residues of monosodium glutamate, 1-2 parts of zinc sulfate, 1-3 parts of sodium hexametaphosphate, 3-4 parts of chitosan, 28-32 parts of horseradish tree pods, 16-17 parts of siderite slags, 16-17 parts of limonite slags, 68-74 parts of orange peels, 3-5 parts of effective microorganism (EM) agents and a proper amount of water. According to the soil remediation fertilizer, the quantity of effective microorganisms in soil can be remarkably increased by addition of the plentiful carbon-source nutrients, so that degradation of organic pollutants in soil is promoted, the soil micro-ecological environment is improved, a good soil granular structure is formed, and the soil fertility recovers and is improved; and by matching of cultivation of heavy metal accumulation plants, accumulator plants can grow quickly, the heavy metal absorption and storage amount is increased, and consequently the phytoremediation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a phytoremediation soil auxiliary fertilizer. Background technique [0002] With the rapid development of the economy and the advancement of industrial technology, the adverse impacts of industrial and agricultural production on the environment have been increasing. Due to the continuous accumulation and dumping of solid waste on the soil surface, harmful waste water has continuously penetrated into the soil, harmful gases and dust in the atmosphere It also continues to fall into the soil with rainwater, causing soil pollution. It not only reduces the yield and quality of crops, but also indirectly endangers human health. [0003] The control of soil pollution is mainly through engineering restoration methods and phytoremediation methods, of which engineering restoration methods mainly include soil improvement methods, electric restoration, soil leaching and heat treatment m...

AI Technical Summary

Problems solved by technology

Not only reduces the yield and quality of crops, but also indirectly endangers human health

[0003] The control of soil pollution is mainly through engineering restoration methods and phytoremediation methods, of which engineering restoration methods mainly include soil improvement methods, electric restoration, soil leaching and heat treatment methods, etc. Engineering treatment measures are usually suitable for small polluted areas and serious pollutants. And the effect of the soil that is easy to spread is more obvious, which can fundamentally improve the soil, but the cost of treatment is high, and it is easy to form secondary pollution, and may damage the soil structure, which may easily lead to a decline in soil fertility

Phytoremediation technology is usually low-cost and can improve soil organic matter content and soil fertility, but plants have limited tolerance to heavy metal pollutants and are only suitable for moderately polluted soil remediation. At the same time, a plant can usually only remediate a certain heavy metal pollution Soil, and it is possible to activate other heavy metals in the soil. It is not effective for the compound pollution of various metals and organic substances. Hyperaccumulators grow slowly, and the restoration period is usually long, which is difficult to meet the requirements of rapid restoration of soil pollution.