Four Seasons Spinach Technology (I)
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First, the sowing date and variety of autumn spinach. Sowing from August to September, 30-40 days after sowing can be harvested in batches. Varieties should choose more heat-resistant, fast-growing early maturing varieties, such as Ploughshare spinach, Hua Bo 1, Guangdong round leaves, spring and autumn leaves. Overwintering spinach. Seed sowing in early-mid-November-November, harvesting in batches before and after the Spring Festival, it is recommended to use medium and late-maturing varieties with strong winter, late bolting and strong cold resistance, such as Yuan Ye Bo, Chi Yuan Ye Bo, Hua Bo No. 1, Liaoning Yuan. Ye Bo and so on. Spring spinach. When the temperature rises above 5OC after spring, the seeds can be sowed. March is the appropriate time for sowing, and the harvest should be carried out 30-50 days after sowing. The varieties should be selected for late leafing and leaf hypertrophy, late leaf spinach, spring and autumn leaf, and Shenyang round leaf. , Liaoning round leaves and so on. Summer spinach. Seed sowing in stages from May to July, and harvested gradually from late June to mid-September, we should choose Huabo No.1, Spring and Autumn Leaf, and Guangdong Round Leaf with strong heat-resistance, rapid growth, and no convulsions. Second, the soil preparation option loose fertility, water conservation fertilizer, irrigation and drainage conditions are good, slightly acidic loam soil, PH value of 5.5-7. During the site preparation, the Mushi rotted 4,000 kg of organic fertilizer, 40 kg of superphosphate, and the entire leveling was fine. In winter and spring, the sorghum should be made. In summer and autumn, the sorghum should be used, and the width should be 1.2-1.5 meters. Third, sowing nursery generally use sowing. In the summer and autumn, seeds are soaked in water for 12 hours before sowing for 1 week. They are then placed in a well or treated in a refrigerator or freezer at about 4OC for 24 hours, then germinated under 20-25OC conditions, after 3-5 days of budding. sowing. Winter or spring can broadcast dry seeds or wet seeds. Acres 3-3.5 kg sowing. After planting water, plant the surface water, sow the soil with the gingivae, so that the seeds are sown in the soil, and a layer of plant ash is added to the surface. After summer and autumn sowing, it is necessary to cover with straw or use a small arch to cover the shade net to prevent high temperatures and heavy rain from scouring. The soil is often kept moist, 6-7 days can be seedlings, winter sowing temperature is low, then cover plastic film or shading net insulation to promote seedling emergence after the emergence of removal.