After the beginning of spring, the time of less than 0°C in one day becomes shorter, and some vegetable farmers prepare beans and peppers in the shed before and after the convulsions. The sheds are not covered with the film to warm them. Such a late tarpaulin, the ground temperature is not up, is not conducive to the cultivation of shed beans, solanaceous vegetables, so farmers should promptly cover the temperature.

The vegetable growers should now use the base fertilizer in the ground in time and deep-dip to smooth the ridges of the mantle so that the loose soil is more conducive to the downward conduction of temperature. At the same time, the ridging also increases the light-receiving area of ​​the soil, making the ground temperature more efficient. fast. In the first three weeks of colonization, the soil temperature in the tillage layer can be increased from 0°C to 16°C. If the temperature is covered by two membranes to reduce the loss of heat at night, the temperature of the tillage layer can be raised to about 18°C. If the soil in the shed is dry, the amount of water needed after planting will be large, which will cause the ground temperature to decrease. Therefore, it is better for the vegetable growers to pour water once every 7 to 10 days before the seedlings are planted to reduce the amount of watering when the seedlings are set and prevent the planting. The decrease in ground temperature over a long period of time is not conducive to slow seedlings.

The author suggested that before planting, vegetable farmers are better to advance the hardening of seedlings, can enhance ventilation and temperature control, or in advance nursery shed beans, eggplant seedlings transferred to the arch, to ensure that the temperature conditions before and after the colonization will not be environmental conditions Severe changes will help increase the resistance of the plants and reduce the time for seedlings.

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