Amaranth is one of the most popular vegetables among editors. People who come into contact with amaranth for the first time will be frightened by its red soup. In fact, amaranth is the most common wild vegetable in rural areas, and people have often cooked and eaten it a long time ago. Amaranth is also rich in nutritional value. Many people in restaurants now order delicious amaranth boiled preserved eggs.
1. Planting time
Amaranth can generally be planted during the frost-free period from spring to autumn. Open field cultivation can generally be carried out from late March to early August. Covered cultivation in greenhouses or small sheds can be sown about 20 days in advance and sown in late February. Under normal circumstances, it can be put on the market about 35 days after sowing.
2. High-yielding planting methods
1. Variety selection
The selection of varieties should be determined based on seasonality and local consumption habits. Generally, red varieties with strong cold resistance, such as red amaranth, are used in early spring or winter. In other seasons, all green or red amaranth varieties that are resistant to pests and diseases are generally used. Generally, early-maturing and cold-resistant Northeastern amaranth and Northeastern amaranth are selected from late February to late March; red amaranth, Dahongpao, white amaranth and willow amaranth are selected from early April to late May; and summer and autumn cultivation are selected from early June to early August. Heat-tolerant white amaranth, willow amaranth and red amaranth.
2. Sowing technology
(1) Seed soaking and germination
This method first requires soaking amaranth seeds in cold water for about a day. Scrub the seeds several times to increase absorbency. Then wrap it with breathable gauze, cover it with a wet towel, and place it in an environment of 15℃-20℃ for germination. When most of the seeds are white, they are ready to sow. This method is usually done in early spring or winter, but can be sown directly in other seasons.
(2) Land preparation and fertilization
Loose and fertile soil should be selected for amaranth planting, with good fertilizer and water retention capacity, and alkaline soil is preferred for amaranth. When fertilizing the land, 5,000 kilograms of decomposed organic fertilizer and 50 kilograms of 25 compound fertilizer can be applied per acre. The ridge width is 1-1.2 meters, the furrow width is 0.3 meters, and the furrow depth is 0.15-0.2 meters.
(3) Sowing method
Amaranth seeds are small. Sowing with fine sand or fine soil can make the sowing even. The seed consumption per acre is 0.25 ~ 0.5 kg. Sowing can be done in a flat border or in a hole. Sowing can be done with or without a four-tine harrow. The drill can be a little deeper in spring and a little shallower in summer, and it needs to be covered with soil. Then, you can water and wait for seedlings to emerge. In winter and early spring, cover with a thin layer of straw to moisturize, and then cover with film to keep warm. Cover with sun screen in summer.
3. Field management
(1) Temperature management
After amaranth emerges in winter and early spring, remove the plastic film and covering, water it and A small shed is built in the greenhouse for thermal insulation. When the outdoor temperature is low, cover the shed with a layer of straw curtains to keep warm at night. After the seedlings emerge in summer, cover them with sunshade nets in time, cover them early and uncover them later.
(2) Water management
For amaranth in winter and early spring, keep the soil moist and water frequently with small amounts of water. Try to water in the morning with sufficient sunshine. After the seedlings are planted, use 0.2 Water the urea solution once and then apply it every 7 to 10 days to promote growth. The amount of water should be appropriately increased in summer, usually in the morning and evening.
(3) Reasonable top dressing
Amaranth needs multiple top dressings. Generally, the first top dressing is done when the seedlings have two true leaves, and the second top dressing is done 10 to 12 days later. Topdress once after each harvest. Nitrogen fertilizer is the main type of fertilizer. 1,500 to 2,000 kilograms of diluted human waste can be applied per acre, and 5 to 10 kilograms of urea can be added.