Biological organic fertilizer capable of alleviating soil cadmium pollution

Abstract

The invention relates to a biological organic fertilizer capable of alleviating soil cadmium pollution. The biological organic fertilizer comprises 12-25 parts of abamectin, 8-19 parts of ammonium sulfate, 4-19 parts of sodium nitrate, 3-20 parts of potassium phosphate, 11-20 parts of sugarcane powder, 1-5 parts of sepiolite, 1-4 parts of sweet potato powder, 5-16 parts of a thiobacillus inoculant, 6-14 parts of a nitrogen-fixing bacterial inoculant, 2-13 parts of a nitrifying bacterial inoculant, 8-19 parts of alligator alternanthera powder, 5-12 parts of honeysuckle straw powder, 12-23 parts of beet powder, 3-8 parts of ammonium molybdate, 4-15 parts of phoenix tree leaf powder and 33-55 parts of water. The biological organic fertilizer provided by the invention has the advantages that by adopting the mode that microbial communities are attached on an organic matrix dissolved in water, necessary nutrients for growth of the microbial communities can be guaranteed, and loss of activity of the microbial communities because the microbial communities directly contact with an inorganic fertilizer is avoided.

Description

technical field [0001] The invention relates to a bio-organic fertilizer, in particular to a bio-organic fertilizer for improving soil cadmium pollution, and belongs to the technical field of agriculture. Background technique [0002] The heavy metals in the soil mainly come from the soil parent material and human activities. Human activities mainly include waste water, gas and waste residues discharged by industrial and mining enterprises, sewage irrigation, and the extensive use of pesticides and chemical fertilizers. [0003] The toxicity of heavy metals in soil to plants and the degree of pollution to the environment are related to the content of heavy metals in the soil on the one hand, and the forms of heavy metals in the soil on the other hand. Heavy metals exist in different forms in soil, and their bioavailability also varies greatly. The bioavailability of heavy metals in soil mainly depends on the content of available state of heavy metals in soil. The forms of ...

AI Technical Summary

Problems solved by technology

[0006] However, there are disadvantages in the mixed application of biochar and biofertilizer: firstly, the release and absorption of fertilizer will be affected after the mixture of biochar and biofertilizer, which reduces the utilization rate; secondly, the service life of biochar is short, and it needs to be Replacement is not only troublesome in actual operation, but also easy to carry away biological fertilizers; in addition, the use of biochar can easily lead to hardening of the soil, making it difficult to recycle

Images