The effect of agricultural planting is good and bad. In fact, it has a great relationship with soil quality. Through analysis and summary, the current soil problems can be summarized as plate, sorghum, poor, shallow, sour, salty, dirty, and miscellaneous, that is, soil "eight diseases" Next, let's take a look at what the soil "eight diseases" specifically refer to?
1. Plate The soil is knotted and the more the plate is crossed. Due to the destruction of the soil structure, the tillage layer becomes hard and the gas permeability is poor, which seriously affects the normal growth of the crop roots.
2, 矿物 Mineral nutrient ratio is unbalanced, the more the more cockroaches. Crop growth requires 17 essential nutrients, while in daily management, only nitrogen, phosphorus and potassium fertilizers are emphasized, and medium and trace element fertilizers are neglected, resulting in depletion of trace elements in the soil and enrichment of a large number of elements.
3. Poor organic matter content is low. The organic matter of soil is an important part of soil structure and an important indicator of soil fertility.
4. The shallow tillage layer becomes shallower and the shallower the species. Due to the long-term use of rotary tiller farming, most of the soil layer is shallow, and the effective living layer is only 15-20 cm.
5, acid soil acidification, the more the more sour. The pH of normal neutral soil is about 7 or so, and the soil pH of strawberry is about 5.6~7.0, while the pH of soil in many areas is less than 5.
6, salt soil salinization, the more salty. Green cream, red cream, hoarfrost, have you seen these phenomena? This is the intuitive expression of soil salinization.
7. Dirty soil pollution, the more dirty the soil. The main types of soil pollution include heavy metal pollution and organic pollution.
8, miscellaneous dysfunction, more and more mixed. Continuous planting, continuous application of chemical fertilizers, the microbial flora in the soil began to slowly adjust, that is, the more the number of harmful bacteria (organic bacteria) accumulated, the fewer the number of beneficial bacteria.
Many problems in soil can only be detected by empirical judgment or visual observation, especially in the early stage. Therefore, to solve the restrictive effects of soil problems on agricultural production, we recommend using soil testers in areas where conditions permit . To carry out soil testing, use data to guide soil improvement, return the soil to health, and achieve high quality and high yield in crop production.
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