Autumn spinach is the wintering vegetable harvested in autumn. It starts from November and turns to the next year in March and April. It lasts for more than 100 days. Therefore, under the condition of long-term low temperature, how to ensure safe wintering is a harvest. The essential.
Pour the frozen water. Pouring frozen water must be “certain†and “two suitableâ€. “Must†is based on the amount of soil water content, decided not to pour the frozen water. Generally, the absolute water content of sandy loam is less than 15%, the loam is less than 17%, and the frozen water should be poured when the clay is less than 20%. “Two suitable†is timely watering and proper watering. The suitable time for pouring the frozen water is that the soil layer can be frozen in the daytime, and when it is frozen at night, the proper amount of watering means that the amount of frozen water cannot be too large or too small, and it is generally suitable to connect the bottom.
Chasing the winter fertilizer. The application of wintering fertilizer can increase the soil nutrient content, and play the role of winter fertilizer and spring, promoting weakening and strengthening. Especially for vegetable fields with less base fertilizer, poor soil fertility and weak seedlings. Therefore, the wintering fertilizer should be applied in combination with the frozen water, and the urea is usually applied with 10 kg of urea or 20 kg of ammonium sulfate.
Covering against cold. The absolute low temperature during the severe cold period in the northern part is very unfavorable for the safe wintering of the vegetable seedlings. Therefore, the cover should be used to prevent cold and ensure the seedlings are safe for winter. Coverage can generally be carried out after all the ploughed soil has been frozen. The covering is a farmer's fertilizer rich in organic matter and crushed and finely smashed.
Pour the frozen water. Pouring frozen water must be “certain†and “two suitableâ€. “Must†is based on the amount of soil water content, decided not to pour the frozen water. Generally, the absolute water content of sandy loam is less than 15%, the loam is less than 17%, and the frozen water should be poured when the clay is less than 20%. “Two suitable†is timely watering and proper watering. The suitable time for pouring the frozen water is that the soil layer can be frozen in the daytime, and when it is frozen at night, the proper amount of watering means that the amount of frozen water cannot be too large or too small, and it is generally suitable to connect the bottom.
Chasing the winter fertilizer. The application of wintering fertilizer can increase the soil nutrient content, and play the role of winter fertilizer and spring, promoting weakening and strengthening. Especially for vegetable fields with less base fertilizer, poor soil fertility and weak seedlings. Therefore, the wintering fertilizer should be applied in combination with the frozen water, and the urea is usually applied with 10 kg of urea or 20 kg of ammonium sulfate.
Covering against cold. The absolute low temperature during the severe cold period in the northern part is very unfavorable for the safe wintering of the vegetable seedlings. Therefore, the cover should be used to prevent cold and ensure the seedlings are safe for winter. Coverage can generally be carried out after all the ploughed soil has been frozen. The covering is a farmer's fertilizer rich in organic matter and crushed and finely smashed.
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