At the moment, it is time for spring and spring vegetables to pull out the garden, clear the shed, and prepare for the next planting of vegetables. Recently, when the author interviewed him in the shed, he found that the temperature in the shed had exceeded 30°C in the morning at 7 or 8 o'clock in the morning. The heat was extremely unbearable. Some vegetable farmers had some plans to remove the plants when they pulled out. The plants were pulled out and a lot of roots remained in the soil. In some difficult-to-pull crops, the vegetable growers even cut off directly from the stem base. Pulling out of the garden is not complete, leaving many hidden dangers for the next crop.
First of all, pathogens depend on the survival of the plant body and remove the plant debris, which naturally reduces the number of pathogens. During the pull, the root system may contain a large number of pathogenic bacteria, root knot nematodes, etc. If the root system is not completely removed, the number of pathogenic bacteria and root-knot nematodes remaining in the soil will be greatly increased, especially various root rot and stem rot. Diseases such as bacterial wilt, blight, wilt disease, and root knot nematodes have already been completely cleaned. The serious sheds where root knot nematodes occur should be noted that it is an excellent opportunity to eradicate root knot nematodes when the garden is pulled out. This opportunity can be used to completely bring out root knot nematodes attached to the roots.
Secondly, it is easy to increase the content of self-toxic substances in the soil. One of the most important reasons for the damage caused by heavy caries is the self-toxic substances that are left in the soil by the upper carp. The self-toxic substances are unfavorable to the growth and development of the roots of the lower barley vegetables, resulting in the lower roots of the vegetables “not deep in roots and leaves not fullâ€. According to research, the vast majority of self-toxic substances are secreted into the soil by the root system. Clearing the remaining roots in the soil can greatly reduce the amount of self-toxic substances and reduce the impact on the crop.
Therefore, it is best to pull all the roots out when the vegetable is pulled out. If the soil is dry, you can pour a little water before the garden is pulled out. The soil is moist and easy to remove. If necessary, shovels can be used to remove large amounts of fibrous roots and remain in the soil. In addition, it is best to mark the diseased plants before pulling out of the garden. After the garden is removed, the diseased areas are treated with quick lime and disinfectants to eliminate the germs.
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