Quality potato seed potatoes Netherlands 15 Netherlands 7 price

Potato (Solanum tuberosum) is an annual herb eggplant Solanaceae, tubers for human consumption, is an important food, vegetables dual-purpose crops. Potato high yield, nutrient-rich, strong adaptability to the environment, mild and humid climate, large temperature difference between day and night. Environmental pollution, ecological conditions, and are suitable for growing potatoes, which more rain, fog, low temperatures potato development, especially suitable to produce high-yielding, high-quality, non-toxic potatoes. Potato individual uniform, fewer pests and diseases, high starch content, taste is, a large, thin, bright color, sweet and delicious food. 1 potato morphological features common cultivars grow from the tubers of potato breeding, morphology varies by species. Height of about 50 ~ 80 cm. Stem sub stems and rhizomes two parts. Tubers round, oval or oblong. Potato skin color is white, yellow, pink, red or purple; potato flesh is white, yellow or yellow. Plants grown from seed form an elongated taproot and lateral branches; and by the tuber-propagated plants no taproot, formed only root system. Primary Leaves simple, entire, with the growth of plants, and gradually formed pinnate. Cymes apical, white, light blue, purple and pink and other colors [1]. 2 Potato potato nutrition with high nutritional value and medicinal value. Most of the new fresh potatoes contained ingredients: starch 9% to 20%, protein 1.5% to 2.3%, fat 0.1% to 1.1%, crude fiber 0.6% to 0.8%. Nutrients contained 100 g potato: Heat 66 ~ 113 J, calcium 11 ~ 60 mg, P 15 ~ 68 mg, iron 0.4 ~ 4.8 mg, thiamine 0.03 ~ 0.07 mg, riboflavin 0.03 ~ 0.11 mg, Niacin 0.4 ~ 1.1 mg. In addition, the potato tuber also contains carotene and ascorbic acid grain cereals that are not. From a nutritional point of view, it has more advantages than rice, wheat flour, can supply the body a lot of energy, it can be called "perfect food." Human rely on potatoes and whole milk is enough to sustain life and health. Because the nutritional content of potatoes is very comprehensive, nutrition structure is more reasonable, but the content of protein, calcium and VA are lower, which can be used just whole milk to supplement. Potato tubers more water, less fat, calories per unit volume is very low, very rich in vitamin type and quantity, VC contained in Apple's 10 times. Hectogram fresh potato content of up to 20 ~ 40 mg, VB content is four times the apple, minerals cereal crops than 1 to 2 times higher, particularly rich in phosphorus, Apple several times to several times vary, organic acids, containing a maximum of citric acid, malic acid, followed by, followed by oxalic acid, lactic acid, etc. [2]. 3 potatoes use potato dish is a dual-purpose grain and forage crops, nutrients complete, in Europe known as the second bread crop, due to the high nutritional value of the potato food has become a consumer fashion. Fresh potato tubers because bulky, high water content, transport and long-term storage are very difficult, therefore, the world pays attention to the production of potato processed foods, such as frozen French fry strips, fried slice, instant flour, starch and pastries, eggs volume, etc., more than 100 kinds. Fresh potato leaf through silage can be used as feed, but which contain solanine have to attract attention, to prevent livestock poisoning. Potato leaf in some parts of China as a green manure, which is similar to fertilizer and milk vetch. 4 soilless cultivation technology of potato soilless cultivation way to break the limitations of space and time, without casing, direct planting each seed potato can produce at least 10, more than 0.4 kg per plant yield, equivalent yield of at least 45 t / hm2, while traditional planting potato equivalent yield of 30 t / hm2 is already yielding visible, soilless cultivation to promote farmers' income the mountains or the Mid-has great practical significance [2]. The specific technical points are as follows [3-4]. 4.1 4.1.1 disinfection treatment before sowing. Seed quantity 1 800 kg / hm2, the original species with metalaxyl wet the 400 to 500 times. 4.1.2 cuts. Each potato cut into 8 or more. Because of its apical dominance, as far as the buds at the top has more cuts, then 10 mg / kg GA 1 package plus 5 min seed soaking water 10 kg or 75 kg of water spraying seed pieces. 4.1.3 germination. The potato flat on the proper moisture pure land, so that potato shoots upward, upper 2 cm layer of soil and then flat seed, repeated after 3 to 4 layers spread at its 5 cm thick soil, piled in the back of the sun with a reclosable plastic sheeting, can be planted after 15 d. 4.2 sown in mid-January sowing, due to the enlargement of the potato as the outside temperature exceeds 25 ℃, tubers stop growing, vine growing vine is vigorous, it must have 90 ~ 100 d of suitable growing, planting should not be postponed. 4.3 matrix selected plots spread about 3 cm thick ash for growing media. Planting density spacing of about 4.4 to 30 cm is appropriate, the seed potatoes on the ash, holes about 8 cm thick layer of dry straw. 4.5 harvested after 80 d of growth, during which no fertilizing, weeding, when the plants stop growing, stems and leaves gradually yellow, stolons and tubers off, you can harvest potatoes. 5 References [1] Kangduo Lan, Wang Hui group, Xiaolang Tao, and other related properties of potato main physiological traits and yield traits [J] Chinese potato, 2007,21 (3): 149-152 [2] party penetration Na. , Pangshu Min, Yang Yongxia soilless production of potato minitubers Progress [J] Chinese potato, 2006,20 (1):... 33-35 [3] Lei Xiulan potato soilless cultivation of new technologies - Nutrition Membrane Technology [J] Agricultural Science and Technology Information (Southwest Agricultural College), 1990 (1): 23-24 [4] Yang, Qi Haiying virus-free potato small potato in nutrient substrates screening