At present, microbial fertilizer includes microbial inoculant (microbial inoculant), compound microbial fertilizer (microbial fertilizer), biological organic fertilizer (microbial fertilizer) three types.
In the process of use, microbial fertilizers play a significant role in improving soil fertility, preventing and controlling diseases and improving quality. However, some friends report that the effect is not stable, and the effect of the same batch of varieties varies greatly in different crops, different periods and different amounts.According to the investigation, there are many misunderstandings in the use of this kind of fertilizer, which are mainly reflected in the ideas and methods of use.
Mistake 1: evaluate the quality of the product by the rate of effectiveness, thinking that the quick effect is good bacteria agent or bacteria fertilizer
The effect of fertilizer is closely related to the reproduction rate and quantity of microbial flora, and the growth cycle of microbial flora exists, which is the biggest difference between chemical fertilizer and plant regulator, and the phenomenon that the quick effect of microbial fertilizers is not as good as that of the latter two.
Slow results do not mean that the variety is ineffective, can be seen in a short period of time significantly improved crop growth may not be good varieties, some of which are also added plant regulator varieties.
Myth 2: category confusion, unclear use of bacteria or bacteria fertilizer
Agro-microbial agent refers to the live bacterial preparation made by target microorganisms (beneficial bacteria) after industrial production and multiplication.Microbial microbial fertilizer contains microbial fertilizer and biological organic fertilizer, which respectively refers to the live bacterial products made from organic materials which are derived from nutrients and major animal and plant residues (such as animal dung and crop straws) after the industrial production and proliferation.
The biggest difference between the bacteria agent and the bacteria fertilizer is the content of nutrients and organic materials in the product. In use, it is necessary to choose the right product according to the actual demand.
Myth 3: the more bacteria a product has, the better the number of bacteria
The effect of compound bacteria agent can be affected by the growth habit of different species, and the blind combination can easily cause the antagonism between species and exert the effect.After the use of the product, only live bacteria will play a role. Therefore, the standard for the measurement of bacteria is "effective live bacteria number (CFU)". The larger the effective live bacteria number, the better the effect.
In addition, the purity of the bacteria is also important, when the number of mold and hybrid bacteria in the product and the rate of miscellaneous bacteria will also affect the application.A few unqualified products on the market contain pathogenic bacteria, not only can not repair the soil, but also can cause disease.
Myth 4: it can be used once in a season and last for years
Part into the soil after application microorganism strains may multiply, when the quantity reaches a certain extent become the advantage bacterium group, but the change of the external environment can kill bacteria, thus affecting the status of beneficial bacteria in the soil microbial system, will continue to maintain its position, will need to use of microbial fertilizer on crop growth period many times to supplement the beneficial bacteria.
Myth 5: do not pay attention to the species of bacteria, think that one kind of bacteria can solve a variety of problems
A few users lack the awareness of the right bacteria, only pay attention to the bacteria when choosing products, and do not pay attention to the types of bacteria, after the use of the wrong bacteria varieties, can not achieve the desired purpose.
For the currently registered microbial strains in the ministry of agriculture, they have different functions, and the right products should be selected according to the requirements, characteristics and functions of the strains.
Mistake 6: use beyond guarantee period without effect
According to the national standards, the shelf life of liquid products is 3 months, and that of powder and granule products is 6 months.Exceeding the expiration date does not mean that the product is ineffective and should be treated differently.
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