Leek, alias green toad, red leeks, wild locust, rice bran, etc., is an annual vegetable that feeds on young leaves of the genus. The main points of summer cultivation techniques are as follows: First, choose a variety Summer open field cultivation should use heat-resistant, drought-resistant, strong resistance to diseases and insect pests, high yield and quality of large-leaved red leeks, round-leaved leeks, and red-leaved leek. 1 big leaf red leeks. The whole plant has 14 leaves, large leaves, long oval, leaf margin near whole, deep purple, leaves the periphery of green; stems light green, thick flesh, tender, suitable cooked food, unique flavor. About 40 days after sowing can be harvested. Generally about 2500 kilograms per mu. 2 round leaf leek. The whole plant has 15 leaves, the front of the leaves green, pink green back, petiole and stem green or dark purple; stems and leaves are white short hairs. Tender stems, leaves soft, suitable cooked food. In the warm, water and fertilizer conditions, the rapid growth, after sowing more than 20 days to harvest. Generally 2000 kilograms per mu. 3 pointed red amaranth. The whole plant has 12 leaves, the leaves are narrow and long, the petioles and stems are purple, and the leaves and stems are covered with white short hairs. Tender strains are slightly thicker and contain more fiber and should be cooked. General mu yield 1500 kg. Second, do the sowing Choose flat sandy land, convenient irrigation and drainage, loose sandy loam or clay loam, and prefer alkaline soil. After the harvest of the former crops, the soil preparation was conducted in a timely manner. 2000 kg of organic fertilizer and 50 kg of diammonium phosphate were applied per acre. After making a deep roll, a 1.5-meter-wide flat sheet was made. Live broadcasts are generally used, and seedlings are rarely transplanted to harvest seedlings for consumption. Seed sowing in late May-June. Sowing method sowing, planting 1 kg per acre. After sowing, the cover soil was 0.5 cm thick, and the head water was poured after compaction. Three, field management Viola is a wild vegetable that is easy to manage and can often keep the field moist. Summer sowing leeks need only 3 to 6 days to emerge. After emergence, weeding should be done in time, and water and fertilizer management should be strengthened to keep the soil moist. During the high temperature period in the summer, it is necessary to cover the shade net to cool and moisten the moisture, so as to create a suitable temperature environment conducive to the growth of the leek, which will help increase the output and improve the quality. From sowing to long leaves of 2 true leaves, choose the first top dressing for sunny days, the second top dressing after about 12 days, and the third top dressing after the first time for picking and harvesting, and timely after each top dressing After watering, each fertilizer will be harvested once every time. The basal fertilizer is sufficient and no fertilizer may be added during growth. Fourth, control pests Leek has strong disease resistance, and the main disease is white rust and the pests are aphids. White rust prevention and control, the initial onset of spraying 50% arsenic copper WP 700 times, 64% anti-virus WP 500 times liquid control. Control locusts, 40% dimethoate 1200 ~ 2000 times or 2.5% Kung Fu EC 4000 times spray control. V. timely harvest 45 to 50 days after sowing, 12 to 15 cm seedling height, and 5 to 6 leaves were harvested for the first time. After 20 days, when the plant height is 20 to 25 centimeters, a second harvest can be made by leaving 5 centimeters at the base. The third harvest was performed after the collaterals grew to approximately 15 cm. Fei County Mingtao Electronic Co.,Ltd , https://www.yourbeautyassistant.com