In recent years, everyone has gradually paid attention to the application of bacterial fertilizer, but farmers generally report that the effect of applying commercial organic bacterial fertilizer is not very obvious! Since then, I have doubts about bacterial fertilizer products!
What is going on?
1. Mismatch between soil bacterial fertilizer
Soil has acid and alkali, organic bacteria fertilizer also has pH value, and bacteria has fungus and bacteria. Alkaline organic bacterial fertilizer was applied to acid soil, and the acid-alkali neutralization reduced the fertilizer efficiency and also damaged the bacteria. Some bacteria are very aerobic, such as actinomycetes, molds, etc., which are applied to the soil with poor air permeability, let alone fermentation and reproduction, the bacteria themselves are difficult to survive.
2. The deterioration of soil physical and chemical properties
The condition in which the bacteria in the manure depend on is organic matter. And more than 80% of the orchards are using inorganic fertilizers, and the soil compaction has poor permeability, which makes some anaerobic bacteria multiply, such as Fusarium oxysporum and Sclerotium sclerotiorum.
3. The soil is not conducive to the survival of microorganisms
The orchard has not applied organic fertilizers and shallow inorganic fertilizers for many years, resulting in soil compaction, poor oxygen storage, and slow root growth. The pH of the soil changes. The residue of herbicide in the soil directly destroys the aggregate structure of the soil and kills the microorganisms in the soil. After applying organic bacterial fertilizer in the orchard, the microorganisms are killed by the remaining herbicides and other substances. There are not enough microorganisms in the soil to ferment and multiply the bacterial fertilizer to form an effective flora, which hinders the effect of fertilizer.
4. Don't know about bacteria
Each organic bacterial fertilizer has its properties and functions. For example, Bacillus sphaericus is a bactericidal bacterium, EM bacteria resistant to Rhizoctonia, and Bacillus lactis is a long-acting bactericidal bacterium. Bacillus subtilis is a bacterium that can effectively control bacteria around the root system and protect crops from damage. Bacillus licheniformis is a bacterial disease prevention bacteria, do not believe that bacteria can cure yellow leaves, leaflets and other physiological diseases. What can cure yellow leaves and leaflets is organic fertilizer instead of bacteria.
5. The application temperature and method are incorrect
At present, the bacterial species used in the bacterial fertilizer are generally moderate-temperature microorganisms. When the soil temperature is 25-37 ℃, it is most conducive to the growth and reproduction of the bacteria. Once the soil temperature exceeds 37 ℃, the growth of the bacteria will slow down or even stagnate Fertilizer effect will also be affected. But the growth stagnation does not mean the death of the bacteria. When the temperature recovers normally and the soil moisture is around 50%, the bacteria will resume the growth and reproduction functions. If applying bacterial manure in high-temperature areas, it is recommended that companies screen out strains that are more resistant to high temperatures and add them to the bacterial manure to ensure the effectiveness of the bacterial manure.
6. Insufficient organic matter in the soil
The key to applying organic bacterial fertilizer is to continuously cultivate microorganisms in the soil. When there is enough organic matter or humus in the soil, it can be used by microbial bacteria, so that the soil microbes can quickly reproduce and activate nutrients.