Pay attention to increase the amount of organic fertilizer and biological fertilizer
Some vegetable farmers have been investing more and more in fertilizers, but production has been getting lower and lower, which is related to their unreasonable fertilization habits. Mainly manifested in the long-term over-application of chemical fertilizers, ignoring the application of organic fertilizer, planting deep without turning the soil in successive years, a large number of salt accumulation in the shallow cultivation layer. Therefore, before planting vegetables, pay attention to increase the amount of organic fertilizer, deep application of organic fertilizer. The purpose is to increase the content of organic matter in the soil, promote the formation of soil aggregate structure, and increase soil permeability. In addition, pay attention to increase the amount of biological fertilizer. Biological bacterial fertilizer can increase the amount of beneficial microorganisms in the soil, inhibit the occurrence of soil-borne diseases, and at the same time promote rooting, which is conducive to the formation of strong trees for vegetables and increase the yield in the later period.
Some vegetable farmers have been investing more and more in fertilizers, but production has been getting lower and lower, which is related to their unreasonable fertilization habits. Mainly manifested in the long-term over-application of chemical fertilizers, ignoring the application of organic fertilizer, planting deep without turning the soil in successive years, a large number of salt accumulation in the shallow cultivation layer. Therefore, before planting vegetables, pay attention to increase the amount of organic fertilizer, deep application of organic fertilizer. The purpose is to increase the content of organic matter in the soil, promote the formation of soil aggregate structure, and increase soil permeability. In addition, pay attention to increase the amount of biological fertilizer. Biological bacterial fertilizer can increase the amount of beneficial microorganisms in the soil, inhibit the occurrence of soil-borne diseases, and at the same time promote rooting, which is conducive to the formation of strong trees for vegetables and increase the yield in the later period.
Pay attention to reduce the amount of fertilizer
When crops are planted in large sheds, the use of organic fertilizers is often used. In addition, the amount of fertilizers used in later stages is large, and it is decided that the amount of chemical fertilizers should be reduced when the vegetation is planted in late autumn. In high temperature weather, the solubility of chemical fertilizers in the soil is very high, and the salt content in the soil itself is high. Excessive application of chemical fertilizers is not conducive to the growth of roots.
When crops are planted in large sheds, the use of organic fertilizers is often used. In addition, the amount of fertilizers used in later stages is large, and it is decided that the amount of chemical fertilizers should be reduced when the vegetation is planted in late autumn. In high temperature weather, the solubility of chemical fertilizers in the soil is very high, and the salt content in the soil itself is high. Excessive application of chemical fertilizers is not conducive to the growth of roots.
Pay attention not to black mulch
The environmental conditions in late summer and early autumn are not only conducive to vegetables but also to the growth of weeds. There are vegetable farmers to prevent interplant weeds and cover black mulch after planting. The black mulch prevents water evaporation and the ground surface humidity is high, which easily leads to high temperature under the plastic film. A large amount of water vapor evaporates from the base of the stem and burns the stem base of the vegetable, creating an opportunity for pathogen infection. At present, eggplants planted by vegetable growers have thinning, darkening and even death of stalks near the surface. From the point of view of symptoms, it should be stem rot caused by bacteria. This is where the black pellicle burns the base of the eggplant stem and induces disease. Some vegetable farmers have already formed the habit of covering the film immediately after the seedlings are thin, and the seedlings are smaller and easier to handle. The main role of black mulch is to prevent the growth of weeds, but the disadvantages of seamless coverage of the whole shed make it superior to that of grass control. Therefore, if black mulch film is laid, it should not be connected, keep a certain distance from the stem base of the plant, and press the stem around. If the temperature in the greenhouse is too high, it is not recommended that the vegetable growers cover the plastic film. After the high temperature (after the heat treatment), the plastic film can be covered.
The environmental conditions in late summer and early autumn are not only conducive to vegetables but also to the growth of weeds. There are vegetable farmers to prevent interplant weeds and cover black mulch after planting. The black mulch prevents water evaporation and the ground surface humidity is high, which easily leads to high temperature under the plastic film. A large amount of water vapor evaporates from the base of the stem and burns the stem base of the vegetable, creating an opportunity for pathogen infection. At present, eggplants planted by vegetable growers have thinning, darkening and even death of stalks near the surface. From the point of view of symptoms, it should be stem rot caused by bacteria. This is where the black pellicle burns the base of the eggplant stem and induces disease. Some vegetable farmers have already formed the habit of covering the film immediately after the seedlings are thin, and the seedlings are smaller and easier to handle. The main role of black mulch is to prevent the growth of weeds, but the disadvantages of seamless coverage of the whole shed make it superior to that of grass control. Therefore, if black mulch film is laid, it should not be connected, keep a certain distance from the stem base of the plant, and press the stem around. If the temperature in the greenhouse is too high, it is not recommended that the vegetable growers cover the plastic film. After the high temperature (after the heat treatment), the plastic film can be covered.
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