In agricultural production, there is a problem that we have to pay attention to in recent years, that is, the long-term non-standard agricultural production model has led to a serious lack of beneficial microbial communities in the soil, and has caused many agricultural problems, the biggest of which is that the soil stubble is serious, the crops at the seedling stage are easy to die, and the yield in the later stage is low quality. So how do you solve this problem that soils face?
<h1 class="pgc-h-arrow-right" > who killed beneficial microorganisms in the soil? </h1>
At present, more than 90% of China's arable land is facing the problem of the lack of beneficial microorganisms in the soil, so why are there fewer and fewer beneficial microorganisms?
The first reason, the long-term use of a large number of compound fertilizers, resulting in soil compaction, salinization, soil environment is not suitable for the survival of beneficial microbial bacteria; the second reason, the irrational use of fungicides, etc., many local farmland management will rush to apply fungicides, which will directly kill beneficial bacteria in the soil; the third reason, the organic matter in the soil consumes a lot, but the supplement is not timely, the lack of organic matter, so that the beneficial bacteria living environment is lacking, then the beneficial bacteria are naturally reduced!
The beneficial microbial community in the soil is reduced, but it creates more living space for some pathogens that are harmful to plant growth, because the two belong to the competitive relationship, the beneficial bacterial community is less, then the pathogenic bacteria of soil-borne diseases must be rampant, which is why it is easy to cause heavy stubble death; at the same time, other effects brought by beneficial microorganisms, such as improving soil quality and stimulating plant growth, are gone, then the soil problem will become more and more serious!
<h1 class= "pgc-h-arrow-right" > Bacillus subtilis is the savior of the soil</h1>
Soil problems are getting more and more serious, so how to solve soil problems? As a result, some scientific research institutions began to develop biocontrol bacteria, and finally concluded after many experiments that Bacillus subtilis has a prominent effect in improving soil, and the cost is acceptable. So what are the specific effects of Bacillus subtilis?
1) The effect of improving soil quality is obvious. After Bacillus subtilis enters the soil, with its activity, it can decompose some of the more difficult to decompose substances in the soil, accelerate the decomposition of organic matter in the soil, improve the structure of soil aggregates, alleviate the problem of saline-alkali land, and make the soil more suitable for the survival of beneficial bacteria.
2) Bacillus subtilis in the process of activity, will produce a lot of beneficial substances, these beneficial substances have the effect of antibacterial lysis, can directly or indirectly kill some pathogenic bacteria, inhibit the occurrence of some diseases in the soil, for soil-borne diseases caused by root rot and other special effects. In addition, Bacillus subtilis is also used in agricultural production for foliar spraying to control a variety of diseases!
3) Bacillus subtilis can form a competitive relationship with soil-borne pathogenic bacteria and seize the living space of pathogenic bacteria, and the final result is that the incidence of plant bodies is greatly reduced!
4) Some substances secreted by Bacillus subtilis can also promote rooting and stimulate the plant body to produce antibacterial, drought-resistant and other anti-stress effects, and these secreted substances are not harmful to the plant body. Therefore, in these years, Bacillus subtilis will also be used in agricultural production for seed control!
<h1 class="pgc-h-arrow-right" data-track="42" > Bacillus subtilis use techniques</h1>
Bacillus subtilis can be said to be the most stable biocontrol bacteria in agricultural production at present, which can improve soil quality, inhibit the growth of soil-borne pathogens, improve plant immunity, and is definitely a good helper to improve soil quality, so how should Bacillus subtilis be used?
Bacillus subtilis for growers, the cost is still high, the current amount of cash crops planted is relatively large, then we will take 10 billion spores / g of Bacillus subtilis as an example, talk about the specific usage!
1) Foliar spray Bacillus subtilis disease prevention and treatment: Bacillus subtilis is effective for most pathogens, such as powdery mildew, rust, gray mold, rice blast, root rot, etc., using 10 billion spores / g of Bacillus subtilis 300-500 times, with an interval of 5 to 7 days to use twice. Use in the early stages of the disease, the effect is better.
2) Prevention and control of soil-borne disease root rot, standing blight, green blight, verticillium wilt, etc.: it is recommended to take drip irrigation, flushing, irrigation of these three ways to carry out the most efficient, seedbed use can be used according to 300 times, customized after 500 times use. If you want to take the way of giving, it is recommended that the amount of land per acre is about 1.5 kg!
< h1 class= "pgc-h-arrow-right" > precautions for the use of Bacillus subtilis</h1>
1) Bacillus subtilis is a chronic treatment agent, if the use of Bacillus subtilis spray to prevent disease, must be prevented in advance before the occurrence or use in the early stage, at the same time 5 to 7 days after the drug, it is recommended to spray a second time, in order to ensure the effect!
2) Pay attention to the time of medication, high temperature direct sunlight may kill Bacillus subtilis, so it is recommended to take the drug before 10 am or after 4 pm, and we recommend it after 4 pm, because the humid environment at night is conducive to Bacillus subtilis to play a role!
3) Pay attention to mixing, generally not recommended to mix with fungicides, may inhibit or kill Bacillus subtilis, if you want to mix, you must have the guidance of manufacturers or agricultural technicians; strong alkaline pesticides can not be mixed with Bacillus subtilis!
4) When using Bacillus subtilis, you can match some nutrients, which is more conducive to the exertion of the effect, if it is spread, the effect with organic fertilizer will be better!
Bacillus subtilis has begun to be valued in the agricultural market in recent years, because it can indeed improve the soil to a large extent, alleviate the problem of soil stubble, and have obvious effects on reducing disease and improving crop quality! If you have problems with the soil during the planting process, consider using Bacillus subtilis! Today's explanation of Bacillus subtilis is here, everyone has something you don't understand or insights, you can leave a comment!