Can microbial fertilizers be mixed with pesticides?
Combined use of microbial fertilizers and pesticides
Avoiding chemical pesticides is one of the goals of organic agriculture. Only as a last resort are legal, mildly toxic pesticides used in the early or middle stages of crop growth. So do pesticides actually destroy beneficial soil microorganisms? General insecticides can be used together with microbial fertilizers, but it is still necessary to avoid soaking them together for a long time before application; it is best to mix them only right before spraying. Fungicides, however, will kill beneficial microorganisms. This is because microbial fertilizers have three functions: 1. providing a source of microbial strains 2. providing a source of organic nutrients 3. providing disease-suppressing substances secreted during microbial fermentation. So when microorganisms are mixed and used together with fungicides, although the microbial strain source will be wiped out, the organic nutrients and disease-suppressing substances are not harmed. Therefore, if the loss of the strain source is not a concern, then using them together is also acceptable, as long as when the pesticide's effectiveness declines, some comprehensive microbial community is sprayed again (please refer to fertilizer management) to supplement the strains.
Originally, the growing medium contains various microorganisms and microscopic organisms. Regardless of whether these microorganisms are beneficial or harmful, they maintain an ecological balance among themselves, checking each other and coexisting. The growing medium is full of living organisms, so the growing medium is "living soil." But nowadays the orchid industry abuses pesticides and chemical fertilizers, turning this once-living growing medium into a patch of "dead soil," and moreover, because the ecological balance is destroyed, stubborn and fast-reproducingpests and diseasesand pathogenic bacteria run rampant. Pathogen resistance and the dependence on and vicious cycle of pesticides and chemical fertilizers mean the orchid industry cannot go a single day without pesticides and chemical fertilizers. In such a harsh environment, to speak of natural farming is truly an enormously difficult task. If one stubbornly insists on the major premise of natural farming, which is to immediately stop using pesticides and chemical fertilizers, then overnight the plants in the orchid garden are bound to suffer and be reduced to nothing. Therefore, we must achieve the goal of not using chemical agents through gradual methods.
Although the goal of organic agriculture is not to use chemical pesticides and not to use chemical fertilizers, this is the goal we strive for. To reach this goal, we must go through a arduous journey. First, we must restore the beneficial microorganisms in the growing medium, bring into play the power of nature, restore the great principle of material cycling among organisms, and further repair the ecological balance and food chain that have suffered human destruction. By using methods such as sterilizing and replenishing bacteria, the dominance of beneficial bacteria, and natural antagonism, we can step by step move from the compromise operation of reducing pesticides and reducing fertilizers (quasi-organic farming) to gradually entering the stage of completely not using pesticides and chemical fertilizers. Only such gradual methods can achieve the goal of natural farming, just like wanting to go up to the second floor: the best way is to use the stairs and walk up steadily step by step. If you try to jump up to the floor, the chance of lucky success is not great, and once you fail, you will also fall very badly.