Kinds of green onions clever disease prevention
Onion is a lily family, two-year-old, cold-resistant and adaptable vegetables. The green onion leaves can evaporate the pungent propylene sulfide, and its root system can secrete bactericidal substances. Both of them can effectively inhibit the spread, infestation or killing of pathogenic bacteria in the air and soil, causing the incidence of vegetable plants to decline significantly.
Bed soil prepared by cultivating onion soil is generally selected for soil preparation, and soil that has been planted with green onions is the best choice. If you haven't planted green onions, you can transport the fields into the greenhouse, spread them into 15 cm thick, plant green onions, wait until the green onions grow for about 1 month, pull out green onions, and use their soil to prepare bed soil, which can reduce the seedling growth period. The occurrence of soil-borne diseases.
In the nursery greenhouse, planting green onions in greenhouses, as far as possible, use greenhouses around the open space and planting green onions. In a well-sealed greenhouse, when it enters the greenhouse in the morning, if it smells the smell of pungent propylene sulfide, the bactericidal effect is good. After planting cucumbers, tomatoes, and other vegetables in a greenhouse, immediately plant a green onion 4 to 6 cm away from cucumber, tomato, and other vegetable plants so that cucumbers, tomatoes, and other vegetables grow together with Welsh onion. In autumn and winter, we can mix scallion seeds with leaf vegetable seeds or soaked green onions between the ditch of leafy vegetables. When harvesting leafy vegetables, leave the green onions and turn them into the soil during the next land preparation, which will help disinfect the soil.
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