Magnetic biological fertilizer and preparation method thereof

Abstract

The invention provides a magnetic biological fertilizer. The magnetic biological fertilizer comprises the following raw materials in parts by mass: 200-400 parts of nitrate mineral, 200-400 parts of plant stalk, 150-250 parts of soybean molasses, 100 parts of plant ash, 100 parts of pulverized fuel ash, 20 parts of composite strain and 10 parts of trace element addition solution. The nitrate mineral comprises the following nutrient components: greater than 30% of silicon dioxide, greater than 20% of calcium carbonate, greater than 12% of iron element, greater than 3% of magnesium element and greater than 5% of potassium element. The trace element addition solution comprises boron element, zinc element, molybdenum element, selenium element and the like. The composite strain comprises trichoderma pseudokoningii and bacillus subtilis. Through the magnetic biological fertilizer, the soil structure can be effectively improved; breathability and water permeability of the soil can be enhanced; nutrients in the soil are increased; adsorption quantity of organic matters is large; the nutrients are not liable to loss, easy to decompose and easy to absorb; the nitrate mineral, the biological fertilizer technique and the magnetic technology are effectively integrated; the magnetic biological fertilizer is complete in nutrients, strong in functionality, stable in physical and chemical indexes and excellent in mutual promotion effect.

Description

technical field [0001] The invention relates to the technical field of chemical fertilizers, in particular to a magnetized biological fertilizer and a preparation method thereof. Background technique [0002] In recent years, non-point source pollution produced in the process of agricultural production has become one of the main sources of pollutants in my country. Among them, the excessive application of chemical fertilizers is an important cause of agricultural non-point source pollution. On the one hand, it brings great pressure to the ecological environment, and on the other hand, it also seriously affects land fertility and crop quality. Therefore, in order to ensure food security and maintain a good ecological environment, in recent years, the state has actively advocated changing the traditional fertilization methods, advocating the application of biological fertilizers, organic fertilizers, and formula fertilization, so as to reduce the impact on the ecological envir...

AI Technical Summary

Problems solved by technology

[0003] However, the vast majority of bio-organic fertilizers in my country's fertilizer market currently use poultry manure such as chicken manure or urban sludge or paper mill fertilizer as raw materials. Although these raw materials have high organic matter content and contain a certain amount of trace elements, but The disadvantages are: poultry manure contains a large amount of antibiotics, harmful insect eggs and parasites, and it is difficult to kill, and there will still be a large number of survival after fermentation treatment; urban sludge and paper mill fertilizers contain a large amount of heavy metal elements, It is difficult to remove it by general treatment methods

Long-term use of such fertilizers will cause many hazards, such as the accumulation of harmful insect eggs, parasites and heavy metals, which will threaten the quality of agricultural products, reduce soil fertility, and cause groundwater pollution, etc.

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