Sweet potato variety-- sl-9
SL-9 is the latest new variety introduced from the United States, medium and short vine type, leaves entire, intact, heart-shaped. Leaves, veins dark green, potato-shaped spindle-shaped, deep red potato skin, white potato meat.
The tubers are early and concentrated, the tuber rate is high, and the tubers are uniform. There are five or six tubers per plant. The average yield of spring potato is 7.8 tons per 667 square meters, the highest is 8.9 tons, the average yield of summer potatoes is 4.5 tons per 667 square meters, and the highest yield is 5.05 tons per 667 square meters. Contains 2.7% sugar, 1.34% crude protein, 1.11% fiber, 23% 25% starch, and 37% drying. Starch is especially white and shiny, which is the most ideal new variety for the development of starch processing.
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Sweet Potato Variety Shuangwan No.1
The new sweet potato variety Shuangwan 1 is newly bred by the Institute of Sweet Potato, Chinese Academy of Sciences. The variety is genetically stable, the stem is green, the leaf is heart-shaped with teeth, the vine is 1.5 meters long, the tuber is early and concentrated, the tuber is long tube-shaped, the potato skin is dark purplish red, the skin is smooth and beautiful, the meat is white, the tuber power is strong, the potato block is moderate in size, the uniformity is good, the starch content is 24%, the starch content is 28%, and the starch is extra white and high quality. Spring potato planting 3500 plants per 667 square meters (1 mu) and summer potato planting 3500 trees per 667 square meters (1 mu) with a yield of 4000 kg, while summer potatoes with a yield of 3500 trees per 667 square meters (1 mu) with a yield of 4000 plants and a yield of 30%.
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Hoarding technology of sweet potato
1. Harvest at the right time and select seed potatoes. The harvest of sweet potatoes in our region is usually in late October, that is, around Frosts Descent. The harvest begins when the local temperature reaches 15 ℃ and ends at 2 ℃. Choose sunny morning harvest, easy to wet, when entering the cellar, choose disease-free, injured, frozen, flooded potato into the cellar. 2. Pit treatment. Whether it is a new cellar or an old cellar, it will be sterilized and disinfected. The cellar wall can be sprayed with lime water or carbendazim 500 times solution, or sealed fumigation can be carried out with 1% copper sulfate solution or 50 times formaldehyde solution. 3. Medicine
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