Cultivation points: it can be planted in hills or plains, barren land or fertile land. It requires loose soil and good ventilation. Spring and summer potato cultivation are suitable. The place where root rot occurs is not suitable for planting. Sushu No.8 is a short-vine variety, which is late in ridge closure and weak in growth, so the planting density should be increased. Generally, there are 3500 ~ 4000 plants per mu of spring potatoes and 4000 ~ 5000 plants per mu of summer potatoes. If fresh potatoes are used for consumption in urban suburbs, in order to avoid the influence of excessive potato pieces on sales, the density can be appropriately increased or harvested early. Features: short vines, semi-erect, green top leaves, green veins, notched leaves, green stems and many branches. The skin of potato is red, and the flesh of potato is orange. The average dry rate is 21.8%, and the taste is average. Disadvantages: it tastes ordinary and does not resist root rot.
2 Ping 'an No.1 (Huangpi Sushu No.8): It is a short vine variety, generally about 1 m, with deep and notched leaves, purple veins, the rest are all green, semi-erect and scattered, with 5-8 branches, 4-6 clumps per plant, yellow peel, deep orange flesh, spindle-shaped potato lumps, early and concentrated potato knots, rapid expansion and commodity rate.
Jinshan 630: a new variety bred by Fujian Agricultural University, can be planted in spring, summer and autumn, with a growth period of 130 days, high yield and good resistance, and the yield per mu is generally above 3,000 kg, which is suitable for processing dried sweet potatoes.
4 Lianhanyou No.8: It can be used as spring potato or autumn potato. Spring potato is planted in late April, and autumn potato is usually planted in late July to mid-August. The growth period is about 130 days, and the yield per mu is 2500-3000 kg. It has good resistance and is suitable for processing dried sweet potatoes.
5 Yanshu 7-3 red-hearted sweet potato is the main variety for processing dried red-hearted sweet potato at present. The whole growth period is120-130 days, with high yield and good resistance. The yield per mu planted in Liancheng, Fujian Province can reach more than 3,000 kg, and that in other counties (cities) is generally more than 2,000 kg.
6 Hongxinwang No.3: This variety has good comprehensive characters, high and stable yield, storage resistance, dry rate of 25%, starch 18%, and high resistance to root rot and stem nematode disease. The tubers are spindle-shaped, with purple skin, orange flesh and 90cm long vines. The stems are stout, the stems and leaves are all green, the leaves are hypertrophy and heart-shaped, and the veins on the back of the leaves and petioles are purple. The tubers are early and concentrated, with 3-4 tubers per plant, high potato yield and bright color. The average yield per mu is 3000kg 85 days after planting, and the growth period is 120 days.
7868: This variety has green leaves, heart shape, purple veins, red skin, white meat, spindle shape, high potato yield, sweet taste and quality like millet. Under the special climatic conditions of severe drought, the measured yield of Ertai soil reached 5722.68 kg/mu, and the largest potato block reached 6 kg, mostly around 3 kg. According to the information of the breeding unit, the starch content of this variety is as high as 26-30% as determined by experts, which is 6-7 percentage points higher than that of "Xushu 18". It is the sweet potato variety with the highest powder content in China at present, and the yield of potato vines is high, with many branches. Cutting for 2-3 times does not affect the yield of potato blocks, and the yield of potato blocks is1-of other varieties of the same kind. This variety has high resistance to root rot and stem nematode disease, wide adaptability, fertilizer resistance, ridge resistance, storage resistance and strong germination, and can obtain high yield whether planted in Cao soil, Santai soil or red sandy soil. It can be seen that this variety is one of the best varieties for processing and extracting starch and developing animal husbandry.
8 Samoguang: This variety has purple-black skin and purple-black meat, which is delicious and has certain development potential. This variety has terminal leaves, green and purple leaves, purple veins, and shallow leaves. The stems are purple, slender, and the growth potential is average in the early stage. で? Star is harsh? Spectrum? ヂ? Is the string strong? 霴霴霴霴 Ⅲ? Scary? Does the sulfone feel dangerous? ず Mi Xian? Yu xianshao? What's the difference? ⅰ? lt; BR>
9 Lushu No.8: The taste and processing quality of this variety are better than that of Beijing 553. The potato pieces are spindle-shaped, the skin is reddish, the flesh is apricot yellow, the yield is high, the vine length is medium, and the emergence rate is 0/8 more than that of Xushu/Kloc-.It is resistant to root rot and black spot.
10 Lushu No.7: This variety is especially drought-resistant and barren-tolerant, and its dry rate is 2 percentage points higher than that of Xushu 181-. In 1999, the yield per mu was 3474 kg, which was 22.2% higher than that of the control Xushu 18. This variety has green top leaves and leaves, purple veins, heart-shaped leaves, purple stems, medium-sized vines, spindle-shaped potatoes, purple skin and yellowish flesh, and more seedlings than Xushu 18. It is highly resistant to root rot, black spot and nematodiasis.