Vegetable planting class: The old vegetable farmer teaches you a few tricks to prevent disease!
Many vegetable farmers do not want to spray more pesticides in the process of growing vegetables, because many pesticides still have certain pollution. In fact, in order to control diseases, they also need to control from the roots. Let's learn a few tricks together!
First, the treatment of soil soil is good and the disease is less
Whether the vegetables grow well or not, whether the disease occurs is closely related to the disease resistance of the vegetables themselves. The root system is good, the plant is strong, and the leaves are thick green and thick, which inevitably makes the plant resistant to disease and less disease. The root system is not good, the plants are thin, the leaves are thin, the disease resistance is weak, and the disease is more likely to occur. If you want the disease to not happen, do a good job in the early management and cultivate a strong root system.
In combination with current production practices, vegetable farmers should focus on the following two points: First, deep-turn the soil more than 30 cm. The second is to adjust the ratio of base fertilizer, organic fertilizer should be mainly based on decomposed sheep manure, and increase the addition of calcium, magnesium, iron, zinc and other medium and trace element fertilizers.
Second, the bacteria + seal to reduce pathogens from the source
Whole vegetables are not sprayed. In addition to cultivating robust plants and improving the disease resistance of vegetables, it is also crucial to reduce the bacteria in the shed. The environment of the shed is relatively closed. Most of the diseases are actually spent in the soil during the rest period. After planting, they are spread to vegetables through air and water. As long as the pathogens on the ground are controlled, the pathogens in the shed can be greatly reduced and the disease can be reduced.
1. Soil supplementation, reducing the source of the disease
Chemicals have a fast onset, but they have a short-lasting effect. The chemical treatment of the soil and the reduction of pathogenic bacteria are feasible in the short term, but it is difficult to achieve long-term effects combined with topdressing. The whole process uses the fermented soybean meal as a top dressing, using the source. No. 1 biological fungus, fermented soybean meal in a shed with a large bucket, fermented soybean meal organic fertilizer is very viscous, like silky oil. Long-term use of biological bacteria fermented fertilizers makes the soil surface beneficial bacteria occupy an absolute advantage, the pathogens are difficult to survive, and there is no air or water droplets, and the disease is naturally reduced. Fermentation of fertilizers by biological agents also greatly reduces costs.
2. Pharmacy seal
Before and after planting, the use of flax nitrite, pyraclostrobin, thiabium copper and other sprayed ground, or the use of bio-pesticide such as Trichoderma harzianum, Bacillus subtilis to spray the ground, to reduce the number of surface pathogens, reduce the spread of disease. The combination of the two phases not only reduces the number of soil pathogens, promotes root development, but also inhibits the source of pathogens and improves vegetable resistance.
Third, air disinfection cut off the route of transmission
High-risk diseases such as gray mold and leaf mold are mainly transmitted through the air. Cut off the channels of air transmission, and diseases such as gray mold and leaf mold are difficult to occur in large areas. Compared with the smoked smoke shed, the air disinfection tablets are simpler to use, have fewer side effects, are less prone to phytotoxicity, have no residue, and have lower cost, and only need about 5 yuan per acre.
Many vegetable farmers have many greenhouses, and it takes a lot of effort and cost to spray drugs. Therefore, the advantages of air disinfection are obvious. When the ventilation is normal on a sunny day, the disease occurs less frequently. Generally, the shed is shed once every 3-5 days, and the prevention effect is very good. When encountering cloudy days, watering, or disease, increase the number of uses accordingly, and use it once every 2 days. The usage is also very simple. In the vicinity of the back wall, set up a mineral water bottle for each of the two empty spaces, add warm water, and put 4-6 pieces of air disinfection tablets.
The above is all the content of today, through the comprehensive prevention and control of the whole process, the layers are checked, the disease can be controlled before the occurrence, the vegetables can be more productive, safe and efficient.
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