First, planting wintering spinach should use cold-resistant varieties such as thorn seeds or sharp-leaved spinach.
Second, the whole land fertilization, before the ploughing, the high-quality farmyard manure is 5--6 square meters, the compound fertilizer is 40 kilograms, finely cultivated, and leveled for sputum.
Third, timely sowing, wintering spinach before stopping growth, when the plant reaches 4---6 leaves, it has strong cold tolerance, therefore, when the average daily temperature drops to 17---19 °C, the most suitable sowing. Our district is in the middle and late September - early October. Ensure that spinach has a growth period of 40---60 days before winter. It is better to use spinach to grow 4--6 leaves before freezing. If the seeds are too early or too late, the spinach is not resistant to cold, which is easy to cause death. Miao, lack of seedlings.
Fourth, using dry seed live broadcast, you can also first soak the seeds with warm water at 35 ° C for 12 hours, remove and dry, spread or broadcast, and then cover the soil after watering.
5. Management before winter, when the plants grow 3---4 leaves, keep the soil moist, and topdress as appropriate. When 5-6 leaves, stop growing, and timely freeze the frozen water.
6. From the time when the seedlings stop growing to the next year, there will be about 100---120 days. In this period, we will focus on preventing cold damage and sealing the frozen water in the second half of November to ensure the seedlings are safe for the winter.
VII. Management after returning to green, after soil freezing, timely fertilizing and watering, promoting vegetative growth, applying 20 kg of urea per mu, pouring enough water after fertilization, after spinach returning to green, the water demand is large, pouring every 5-7 days. water.
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