Vegetable gardening is not easy to remember three points are the key
The work of clearing the garden of vegetables seems simple, but if it is not handled properly, it will leave the roots behind and bury hidden dangers for the next vegetables. Therefore, vegetable farmers must pay attention to clearing the garden, especially the disease prevention before and after the gardening.
Close the shed to clear the garden, save trouble and worry. When the vegetables are pulled out of the garden, in order to facilitate the cleaning and transportation, the vegetable farmers will close the air outlet of the shed and use the high temperature and strong light to dry the plants. Although this operation saves labor, it will leave some problems. For example, root-knot nematodes, when vegetable roots gradually wilt, and plant stems and roots become fragile, the roots are not easy to be plucked out in large quantities. The roots remain in the soil and become a good place for root-knot nematodes to continue to multiply and damage. Among them, root-knot nematodes will migrate to the deep layers of the soil. When the next vegetable is planted and the soil environment is suitable, they will come out to harm the vegetable root system.
The author recommends that when pulling the seedlings and turning the stubble, the countryside should be cleaned immediately, and the plants and roots should be removed from the shed as much as possible. In order to reduce the number of pathogenic bacteria and root-knot nematodes in the shed, vegetable farmers should take medicine before pulling out the garden and carry out a comprehensive control work. For root-knot nematodes, vegetable growers should rinse the nematode with water once before clearing the garden to kill root-knot nematodes to the minimum and reduce the number of residues in the soil.
Change the stubble and clean the garden thoroughly, and don't get muddled. When vegetables are ready to be pulled out of the garden, there are always many situations where the garden is not cleared in time every year. To save trouble, the vegetable farmers only cleaned out the vines on the plants, but a large number of roots still remained in the soil. In this regard, the author reminds: The garden must be cleared, and the garden must be cleared early. Some vegetable farmers think that clearing the garden is enough, not too early. In fact, the Late Qing Garden created favorable conditions for pathogens to multiply over summer. For example, root-knot nematodes reproduce very quickly, as long as the vegetables have not been pulled, root-knot nematodes will continue to reproduce.
After vegetable prices fall, if vegetable farmers decide to change crops, they should immediately clear their gardens and allow the sheds to enter the shed time, or disinfect and fertilize them as soon as possible, leaving enough time for the soil to restore its fertility and facilitate the growth of the next crops. At the same time, the garden must be cleaned thoroughly and should not be left behind.
Grasp the empty shelf period to completely eliminate pests and diseases. After the shed is cleared, some pathogenic bacteria and pests will remain in the shed. At this time, it is unnecessary to consider the problem of vegetable phytotoxicity when using pesticides. Therefore, the method of medication is flexible. For example, using the method of boring shed, using the combined action of chemicals and high temperature, it will kill most of the pests and diseases on the soil, pillars, and walls, and control more thoroughly.
Of course, the use of straw return technology when clearing the garden makes recycling more ecological and environmentally friendly. However, vegetable farmers should pay attention to that, first, the straw should be finely crushed and broken to facilitate rapid decomposition in the soil; second, the mulch, sling and fertilizer packaging in the straw should be cleaned in advance to avoid residues in the soil, which will harm vegetable growth. It will also affect the physical and chemical properties of the soil; thirdly, high-temperature microbial agents must be used in conjunction with high-temperature fermentation, which can also reduce the number of plant diseases and pests remaining in the soil.
At the same time, the empty shed period is also the best period for root-knot nematode control. Vegetable farmers can choose appropriate control products based on the occurrence of root-knot nematodes, and strictly follow the instructions to ensure the effect of use.
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