What Are The Benefits Of Bacteria-containing Fertilizers To The Soil

- Sep 22, 2017 -

Bacteria-containing fertilizers are divided into: microbial agents, compound microbial fertilizers and bio-organic fertilizers.
This paper focuses on the benefits of compound microbial fertilizers and bio-organic fertilizers to improved soils:
The common characteristics of saline-alkali soil are low organic matter content, poor physical and chemical properties, harmful to crop growth yin, cation, soil fertility is low, crops are not easy to promote seedlings.
The application of compound microbial fertilizer and bio-organic fertilizer can improve soil fertility, improve soil structure, reduce the velocity of capillary water movement and void evaporation of water, and obviously inhibit the effect of returning salt. The application of compound microbial fertilizer and bio-organic fertilizer can also increase the content of effective calcium in soil, and the organic acids produced by microbial decomposition of organic matter can also activate the soil adsorbed calcium, and strengthen the substitution of soil adsorption sodium, which leads to desalting and denitrification. Under the action of compound microbial fertilizer and bio-organic fertilizer, the content of harmful ions and ph value of saline-alkali soil decreased obviously, and the buffering performance increased, which improved the salinity tolerance of the crops.
The general principle of fertilization is to apply compound microbial fertilizer and biological organic fertilizer, and to control fertilizer application properly. Basal manure should be applied to organic manure with high organic matter content, reduce the amount of fertilizer application, and the chemical fertilizer is not close to the seed, so as to avoid increasing the concentration of soil solution and affecting germination. Top dressing According to the situation, timely application, avoid excessive. In the conditions of the place, can be a large number of straw returning to the field, planting salt-tolerant green manure and other methods to reduce the harm of salt and alkali crops.
The benefits of using compound microbial fertilizers and bio-organic fertilizers in clays:
Clay generally contains machine, inorganic colloid more, soil conservation capacity is strong, nutrient is not easy to lose. But the clay is slow to fertilize, the effect is slow after fertilization, this kind of soil "sends the old seedling not to send the small seedling", the fertilizer effect is slow but long, the soil is compacted, the permeability is poor, the crop sends root difficulty. This soil application of compound microbial fertilizer and bio-organic fertilizer, through the enrichment of organic matter and the activities of beneficial microorganisms, improve soil aggregates structure, increase permeability, improve water conservation capacity. This kind of soil is negative, such as the application of a small amount of undercooked horse manure combined with compound microbial fertilizers and biological organic fertilizer, the effect will be better.
The clay has strong ability to keep fertilizer and fertilizer should be combined with compound microbial fertilizer and bio-organic fertilizer. The application of fertilizer alone, if a more application of nitrogen fertilizer, especially, because nutrients are not easy to lose, the late effect of the full play out, easy to cause the crop greed and green, leading to the occurrence and production of pests.
Sandy land can also use compound microbial fertilizers and bio-organic Fertilizers:
Sandy Land General organic matter, nutrient content is less, fertility is low, the ability to protect fertilizer is poor. But the sand for good fertilizer, fertilization, quick results, this soil "small seedlings do not send the old seedlings", the effect is fierce and short, there is no stamina.
The sandy land should be applied to increase the organic manure, improve the soil organic matter content and improve the ability of conserving fertilizer. Because of the good condition of sandy soil, the soil is warm, the organic matter is easy to decompose, and the cold fertilizer, such as organic manure or cow dung, is less affected than clay. Fertile green manure can be grown in conditioned areas to improve soil physical and chemical properties.
 Sand land application of fertilizer, one quantity can not too much, otherwise it is easy to cause "burning seedlings" or caused a large loss of nutrients. Therefore, the application of fertilizer to sand land must be combined with compound microbial fertilizer, biological organic manure or other organic fertilizer, and a small amount of application, that is, "eat more meals" to improve fertilizer efficiency, reduce nutrient loss.
The beneficial microorganisms in compound microbial fertilizers and bio-organic fertilizers do so:
In the process of growth and reproduction, a lot of secondary metabolites are produced in the complex microbial fertilizers and biological organic fertilizers, which can promote the formation of soil aggregates. The formation of granular structure makes the soil become loose and soft, and the water, gas and heat are more coordinated, reducing soil compaction, which is beneficial to water conservation, fertilizer, ventilation and root development, and to provide a comfortable environment for growing crops. The improvement of soil physical and chemical properties enhances the activity of soil beneficial microorganism, which can induce the decomposition and transformation of organic matter, produce a variety of nutrients and excitant substances, and in turn stimulate the growth and development of microorganism, promote the growth of crops, and finally achieve the goal of increase. In addition, functional microorganisms form dominant populations around crop roots, inhibit or antagonize the growth and reproduction of harmful pathogenic bacteria, reduce the degree of crop disease, and increase yield.

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