The practical significance of bio - fertilizer
the application of bio-fertilizer can improve crop yields and improve crop quality. Such as the accumulation of nitrate and the decrease of protein content in vegetables, the decrease of beneficial amino acid content in grain crops, the fragmentation of grains and so on. At the same time, the amount of excess The use of chemical fertilizers, but also the crop appears soaring and so on, and may lead to its cut. Therefore, in some areas, the appropriate reduction of chemical fertilizers, especially the application of chemical nitrogen fertilizer, to improve crop yield and quality, improve the agricultural ecological environment may be more important than chemical fertilizer. But if applied improperly, it may increase the production effect is small or even ineffective.
the application of bio-fertilizer to a certain extent, improve the physical and chemical properties of the soil. Application of biological fertilizers, due to reduce the chemical fertilizers on soil nutrients, structural and other aspects of the adverse effects, while the microbial activity capacity is enhanced, so the relative improvement of soil physical and chemical
the development of bio-fertilizer can reduce environmental pollution. The problem of environmental pollution caused by fertilization has been paid more and more attention. In the eutrophication of major lakes in China, the impact from agricultural pollution is even greater than that of industrial pollution. After chemical fertilizers are applied to the soil, there is a considerable part of the loss of nutrients, such as leakage, volatilization and nitrification and denitrification, which will inevitably lead to pollution to the environment, water and soil, In energy and economy is also a waste. The application of biological fertilizers such as nitrogen-fixing bio-fertilizer, not only may be appropriate to reduce the amount of chemical fertilizers (such as the application of high fertility can be reduced by 10 to 30% of the chemical nitrogen fertilizer), and because of its fixed nitrogen stored in the body, Relatively speaking, the chance of environmental pollution is much smaller.
the development of bio-fertilizer can reduce fertilizer production costs. Moreover, farmers will be home to buy fertilizer, but also must spend a lot of labor to the field and into the farmland. In contrast, bio-fertilizers make full use of some of the characteristics of micro-organisms to increase the effective nutrients in the soil for the purpose of its application is generally not large, in the production process of the energy consumption is also very small, and the application of bio-fertilizer at the same time also Can reduce the amount of fertilizer applied, thus saving the cost of fertilization. Therefore, the biological fertilizer must be in the foot of organic fertilizer and fertilizer on the basis of the amount of fertilizer to play its effect, or that bio-fertilizer can only be used as auxiliary fertilizer, and can not replace fertilizer and organic fertilizer.
Bio-fertilizers effectively utilize nitrogen or soil nutrients in the atmosphere. Therefore, the development and use of nitrogen-fixing biological resources is an important aspect of making full use of nitrogen in the air. In addition, the crop on the soil phosphorus, potassium and other mineral nutrient use capacity is poor, and phosphorus, potassium and other fertilizer utilization is also low, phosphate fertilizer season crop utilization rate of less than 20%, potash crop utilization The rate is generally below 40%. In the case of China, there is a serious shortage of phosphorus and potassium resources, especially because the potash is heavily dependent on imports. Therefore, how to convert the ineffective phosphorus and potassium in the soil into available nutrients for crop absorption and utilization, Concern, the application of biological fertilizers, no doubt to provide a prerequisite for it.
