What is the relationship between microbial fertilizer and chemical fertilizer?

Microbial fertilizer and chemical fertilizer are complementary. Using microbial fertilizer can improve the utilization rate of chemical fertilizer, reduce the amount of chemical fertilizer used, and overcome the characteristics of soil hardening, water leakage and fertilizer leakage caused by using chemical fertilizer alone. Next, I will analyze their relationship as follows:

1, microbial fertilizer can't completely replace chemical fertilizer.

Bio-organic fertilizer should not completely replace chemical fertilizer in the field of planting bulk agricultural products (such as corn and wheat) that only pursue yield but not quality of agricultural products. If only microbial fertilizer or organic fertilizer is used to completely replace chemical fertilizer, product quality and output should be pursued, and the cost of putting into use will increase relatively. For the general bulk agricultural products that do not pursue the quality of agricultural products but only the output, it is more expensive to replace the low-priced chemical fertilizer with bio-organic fertilizer with relatively high cost. This kind of operation, which only uses chemical fertilizer, pursues yield and hopes that the land will continue to harvest, can only be effective in the short term in the soil rich in organic matter. For example, in the black soil in the northeast, only chemical fertilizers are used for a long time, and straw is burned at the same time, which leads to the desertification of black soil.

From the perspective of sustainable utilization of cultivated land, the best utilization mode is the combination of chemical fertilizer, microbial fertilizer and organic fertilizer, especially for agricultural products with special economic benefits, such as trees, vegetables, tea and Chinese herbal medicines, which is a targeted and economical farming method. The use of microbial fertilizer not only improves the yield, but also ensures the quality and quality of agricultural products.

2. Microbial fertilizer can improve the utilization rate of chemical fertilizer.

Under the current planting mode, the utilization rate of chemical fertilizers in China is only about 30%~35%, and most of them are not absorbed by crops, or partially volatilized, or partially fixed in the soil, or seeped into the ground with rainwater, polluting the environment. When applying fertilizer, organic fertilizer and microbial fertilizer are used as base fertilizer, and chemical fertilizer is used as topdressing. This combination of microbial fertilizer and organic fertilizer can greatly improve the utilization rate of chemical fertilizer, which can be increased to about 70%.

3. Microbial fertilizer can reduce the use of chemical fertilizer.

Improving fertilizer utilization rate is itself a measure to reduce fertilizer consumption. In addition, the strain with nitrogen fixation ability can also reduce nitrogen in the air and fix it into nitrogen fertilizer in the soil lacking nitrogen nutrients, which greatly reduces the amount of fertilizer.

Therefore, there is a complementary relationship between microbial fertilizer and chemical fertilizer. Microbial fertilizer can not only reduce the use of chemical fertilizer, improve the utilization rate of fertilizer, but also greatly improve the quality of agricultural products. Therefore, using microbial fertilizer is a scientific and effective agricultural production measure to reduce the amount of chemical fertilizer.