Varieties of varieties selected for disease resistance, high yield, and cold tolerance, such as spinach 9 and spinach 10, etc.
Before the field fertilization, the crops were harvested with 5000 kg of high-quality decomposed farmyard manure and 30 kg of ternary compound fertilizer per acre. The ploughing was 20 to 25 cm, and the hoe was flat and tidy, and the raft was 1.5 to 1.7 m wide. When the seeding is carried out, the ditch can be ditched by a row spacing of about 10 cm, the ditch is 3 to 4 cm deep, and the seeds are evenly sprinkled, and then the soil is stepped on and watered.
Before soaking seeds and germination, it is usually soaked in cold water for 12 hours, then placed in the lowermost layer of refrigerator at 7-8 °C for 24 to 26 hours, then germinated at 20-25 °C, or soaked with 0.1% potassium nitrate. 16 to 20 hours, when the seeds are white, sow.
The best sowing time for proper sowing is from late October to early November. After sowing, in order to ensure the whole seedling of spinach and promote growth, the soil should be covered with thin soil to maintain soil moisture.
After the cultivation and management, the greenhouse will be buckled. Generally, the two waters will be seedlings. After the emergence of the seedlings, water will be poured for 10 days. After the two leaves of spinach are unfolded, the soil will be kept moist. 25 kg of ammonium bicarbonate will be applied per acre. Go through the dense seedlings and properly control the water. Pay attention to the insulation before and after the "Xiaoxue" in November, and let the air blow out at noon. In order to be listed in advance, a small arch shed can be set up during the winter season. After the end of January, the spinach begins to turn green, and it is necessary to gradually release the wind. The temperature of the shed should not exceed 25 °C. When the temperature is high, the spinach plants are weak, the leaves are curled, the quality is reduced, and the yield is reduced. And pay attention to pouring the green water, with 25 kg of ammonium bicarbonate, followed by watering every 7 to 10 days, and then topdressing once.
Harvesting spinach in a timely manner, one week before the harvest, promote the thickening of the leaves, the leaf color turns green, and the yield and quality are improved. Before and after the Spring Festival, when the price of spinach is high, the harvest is sold and the price is high.
(Feng Xiaolu)
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