Purple cabbage high-yielding cultivation techniques

Purple cabbage, also known as red cabbage, purple cabbage and so on. This kind of cabbage is resistant to cold and heat, adaptable, high yield, resistant to transportation, and the growth period is 90-120 days. It is one of the rare vegetables in Shandong Province. The economic benefit of planting purple cabbage is much higher than that of common cabbage varieties. Nursery seedbed soil can take 6-7 pieces of Yang soil on the onion and garlic sprout plots, add 3-3 pieces of quality circle fertilizer decomposed and screened, and then incorporate a small amount of diammonium phosphate. The seedbed is sterilized with chlorothalonil or thiram. Soaking seeds after 2-3 hours sowing, germination rate can be high without germination. Seedlings were seedlings once in 2 leaves and 1 heart. Nursery time: winter and spring in late November to early December. Two-film seedlings are used to raise seedlings in small greenhouses in greenhouses. Xia Yu uses small arch shelters in late February to late March. Autumn and winter pods are raised in late July to late August. Due to the rain in July and August, the seedbed should be built on a high-lying, easily-drained plot, with grasshoppers or shade nets above the seedlings. The weather is generally clear at about 10 o'clock in the morning on sunny days, and is revealed at 3 o'clock in the afternoon. Planting selection of soil fertility, drainage and irrigation convenient land cultivation. Seedlings have 6-7 true leaves when planted. Before planting, 5000 kg of organic fertilizer, 30 kg of diammonium phosphate and 50 kg of potassium sulfate were applied every 1/15 hectares. On ridge planting, it is a planting belt for every 150 cm and a width of 110 cm. Plant 2 lines in a row with 50 cm spacing and 35 cm spacing. Within 7-10 days after field management, the daytime temperature is controlled at 25-27°C and 13-15°C at night. Into the rosette period and the ball stage, the daytime temperature is controlled at 18-20°C and nighttime at 12-15°C. If the daytime temperature exceeds 25°C, the film should be opened to let out air. When the temperature is lower than 17°C, cover the film to prevent wind. After 15 days of easing, the first topdressing was carried out in combination with watering, and 15-20 kg of urea was applied per 1/15 ha. The second time the topdressing was applied before the ridging of the rosette leaves, and when the ball began to enfold, 10 kg of urea and 5 kg of potassium sulfate were applied per 1/15 ha. The third time during the ball stage, 20 kg of urea, 10 kg of potassium sulfate, and 10 kg of phosphate fertilizer were applied every 1/15 ha. Keep soil moist during the ball stage. Watering should be selected for sunny weather, cloudy days should not be watered. Prevention and control of insect pests (1) Black rot and soft rot: The diseased plants were found to be removed in a timely manner, and 77% of sprays were applied to kill 500 times of the solution or 300 times of neomycin. (2) Downy mildew: spraying 63% antiviral 500 times solution or 75% chlorothalonil 500 times solution. (3) Sclerotinia: spraying 30% sclerotin net 1000 times solution or 50% acetaminophen 1500 times solution. (4) Aphids and cabbage caterpillars: treated with 2.5 enemies killed 3000 times or 20% cypermethrin 3500 times. (5) If the humidity in the shed is high, the aerosol on the road can be used for prevention and control. China Agricultural Network Editor

Black Garlic (500g in box)

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