The black-purple potato is a new colored potato variety that combines nutrients, health care and appreciation. In addition to its unique appearance with fine quality and bright color, it is also rich in vitamin E, vitamin C, and enzymes. Body, starch and other nutrients, in addition to starch content higher than ordinary potatoes, there is a unique function, with health, medicinal value of the material called "anthocyanin."
Characteristic characteristics
Seedlings erect, dark purple, luxuriant, strong growth. Disease resistance, plant height 60 to 70 cm, stem diameter 1.3 to 1.4 cm, dark purple stem, cross-section prismatic. The main stem is well developed with less branches, dark green leaves and purple petiole. Corolla purple, dark purple petals. The potato has a long elliptic shape with a smooth skin, dark purple and black shiny. The appearance is beautiful and the colors are attractive. The content of the lake is 14%~15%, the taste is fragrant and the quality is very good. Shallow eyes, moderate number of buds. Concentrated potato, single tuber 6~8, weight 120 ~ 300 grams. The whole growth period is 90 days, which belongs to medium-early-maturing varieties. Drought-resistant, cold-resistant, wide adaptability, tubers resistant to storage. During the growing period, drought-resistant disease, late blight, ring rot, black stem disease, virus disease, mosaic disease, etc. The average yield per mu is 2000~2600 kg, which is more than 15% higher than that of ordinary varieties. Suitable for all potato production areas in our country, and cultivation in secondary production areas.
Food value
The black-purple potato is rich in nutrients. It is determined that it contains 2.3 grams of protein per one hundred grams, 0.1 grams of fat, 16.5 grams of carbohydrates, 11 milligrams of calcium (0.9 milligrams of iron in ordinary potatoes) and 64 milligrams of phosphorus (59 milligrams of phosphorus in ordinary potatoes). Potassium 342 mg, magnesium 22.9 mg, carotene 0.01 mg, riboflavin 0.03 mg, niacin 0.4 mg, ascorbic acid 16 mg, anthocyanin 100 mg (common anthocyanin 5 mg). The black-purple potato can be used as a side dish or as a special dish. It can be fried, fried, boiled, boiled, steamed, fried, and so on. In addition, it is rich in anti-oxidant substances and can maintain its original natural color without adding any pigment after high-temperature frying.
Cultivation points
Seed selection: choose disease-free virus-free seed 20 to 60 grams.
Site preparation: autumn fall, autumn fertilization, turning deeper than 25 to 30 centimeters, turn over and fertilize ridges to suppress, reach the sowing state.
Fertilization: Apply Fermented Organic Fertilizer 3~4 tons/mu.
Sowing: The temperature is stable at 12°C and the ground temperature is above 10°C. It is usually sown in early April in late April. Precipitated from the cell pit for 45 days before sowing, the buds were sown 1 to 1.5 cm long. Using artificial manipulation of whole potatoes, 70 to 80 cm ridges, 30 to 35 cm spacing.
Field management
Mu 6 to 10 stalls of castor, pest control, disease prevention, increase production, must be nursed, planted in mid-May. Rice husks and rice straw, seedlings 4 to 6 cm in length, 3 to 5 cm rice husks regenerated, 4 to 6 cm old to grow for the second time, and then reseeded rice husk or Chen straw 3 to 5 cm. Spraying water is best sprayed, no shoveling, hoeing, no spraying of pesticides, reducing arable land into the car. Lei buds during the bud period to reduce nutrient losses and promote the increase of seed potatoes.
Timely harvest
According to sowing sooner or later, the stalks are yellowed, and timely harvested.
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