Is it a good thing or a bad thing to have more earthworms in vegetable fields?
Earthworms can loosen soil and ventilate, which is beneficial to the absorption of plant roots and the growth of plants. Earthworm manure can improve soil structure and help solve the problem of secondary salinization of soil. At the same time, it can reduce the density of wired pests to plants in the soil. In addition, when earthworms move deep in the soil, their feces are excreted to the ground, forming holes, so that the soil can be cultivated naturally, which is beneficial to the long-term growth of crop roots.
But there are too many earthworms in vegetable fields, which also has an impact. It will cause soil hardening and poor ventilation and permeability, thus causing damage to the roots of plants. At the same time, earthworms will eat the roots of plants, thus affecting the normal growth of plants.
Will earthworms affect vegetables in vegetable fields? It is good to have earthworms in the vegetable field, which shows that the vegetable field is rich in nutrition.
Earthworms keep digging holes in the soil, allowing air to circulate and rainwater to be discharged in moderation. Without earthworms, the soil will become hard and lifeless. At present, it is difficult to find earthworms because of the uncontrolled use of pesticides and fertilizers and the acidification of the soil. Earthworm dung is soft and tasteless, with good aggregate structure and strong water retention. It is rich in many elements needed by plants, and also contains many trace elements, such as humic acid, humic acid, plant growth hormone, soil beneficial microorganisms and so on. If there are earthworms in the soil, it means that this land is rich in organic matter and vegetables will certainly grow well.
Why does it rain when earthworms climb to the ground? This is because earthworms like to hide in damp and loose soil, so they will come out and crawl in rainy days.
Earthworms are meteorologists. When the weather is irritable, we often see earthworms crawling on the road, and the number is large, which is already very large. The appearance of this phenomenon has already told us that there will be a heavy rain soon or tomorrow. Earthworm weather warning provides convenience for farmers to farm and master the climate.