[selection skills] Excellent varieties are what people call good varieties. Standards for fine varieties: The first is high yield, that is, high yield; The second is strong resistance, wide adaptability, resistance to pests and diseases, drought, sputum, and other natural disasters; The third is good quality, good merchandise, selling, and making money. Specifically, the superior variety of potatoes, first of all, is the high yield of tubers. For example, the productivity of a single plant is strong, the tuber is large, and the number of potatoes per plant is moderate. Followed by strong resistance and tolerance. Under the same circumstances, the disease is light, the production is reduced or the production is not reduced, the ability to resist natural disasters is strong, and it can resist drought, stagnation, anti-freezing, etc.; it has certain adaptability to different soils and different ecological environments. The third is that the tubers have excellent properties. The shape of the potato is good, the bud is shallow, and it is resistant to storage; the dry matter is high, the starch content is high or appropriate, the food is good, the large medium potato rate is high, the commodity is good, and the price can be sold. The fourth is that there are other special advantages, such as very early maturity, catching up with the highest market in the market, and not delaying the next one; the potato shape is special, such as special long, low in reducing sugar, very suitable for frying French fries. In short, the potato variety that meets the high yield, high quality and high efficiency is an excellent variety. [Retaining points] 1. Retain some of the field in the potato planting field as the source of the seed potato in the coming year; 2, the potato field part, increase the planting density, produce a small but large number of individual potato pieces, to achieve the purpose of using healthy seed potato whole potato sowing; 3. Strengthen the cultivation and management of seed potato fields, achieve high-cultivation soil, and cultivate soil more than 2 times to reduce the probability of contact between pathogens and potato tubers; 4. Conduct chemical control between 2 weeks and 1 month before harvesting of seed potatoes; 5. If bacterial diseases are found in the seed potato field, the potato pieces within 2 meters of the diameter of the diseased plants cannot be used as seed potatoes, and attention should be paid during harvesting. 6, seed potato storage should be in a well-ventilated, low-light and dry place, separated from a large number of commercial potatoes, to avoid the occurrence of disease during storage. We're professional Orthopedics Instruments
manufacturers and suppliers in China, specialized in providing high
quality medical instruments with reasonable price. We warmly welcome you
to buy or wholesale bulk Orthopedics Instruments for sale here and get quotation from our factory. Orthopedic Tools,Orthopedics Instruments,Orthopedic Surgical Instruments,Orthopedic Surgery Instruments Tonglu WANHE Medical Instrument Co., Ltd , https://www.tlvanhurhealth.com