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With the continuous improvement of people’s living standards, the demand for vegetable varieties has become increasingly diversified, and some vegetable varieties with high yield, high quality, high nutritional value, good taste, and market prospects have been introduced and planted in large quantities. Moreover, with the circulation of seeds, Accelerate the time, farmers' friends can purchase locally grown varieties of vegetables without going out of their homes, further optimize the cultivation mode and variety structure of vegetables, and some vegetable varieties have been continuously produced and supplied throughout the year. There has been no traditional significance throughout the year. On the off-season peak season. The introduction of exotic varieties has become an important way for vegetable farmers to increase production and income, but there have also been many examples of failed introductions. Several issues that should be noted in the introduction of vegetables are now proposed. Note that the variety of the ecological adaptability of a species in the good performance in the first place, in the second place is not necessarily able to produce high quality and stable quality. It is required to analyze the temperature, precipitation, sunshine duration, and the conditions required for each growth stage of the introduced varieties and the related climate adaptability. At the same time, we must also pay attention to the climate factors and their changes in terms of yield, quality, maturity, etc. The possible impact of the use of agroclimatic similarity principle, to make a scientific evaluation of the climate adaptability of the species planted in the region. Pay attention to the variety characteristics In general, southern vegetables introduced into the north, the main consideration is its cold tolerance, and the introduction of northern vegetables to the south should pay attention to the problem of flowering and convulsions. Some vegetables are warm, some cold, some hi light, some cool, some hi wet, some resistant to drought. When introducing, comprehensive consideration should be given to whether the varieties adapt to local environmental conditions. Different vegetables have different temperature requirements. For example, if Chinese cabbage is higher than 30°C, it will not be able to cover itself properly. However, it can also grow normally at 35°C, and leeks and other vegetables below 12°C will not grow normally, while Chinese cabbage, etc., will not grow at 10°C. It can also grow normally. During the growth of vegetables, the water requirements are also different. In general, leaf vegetables are required to have high moisture content, and vegetables with a longer growth period of roots and stems are more tolerant to drought, and some vegetables have stronger resistance to stains, and some vegetables are more resistant to stains. weak. For example, hot peppers and tomatoes are easy to saturate, while a small amount of celery is barely affected. Chinese cabbage, leeks, etc., and ginger, lettuce, etc. like cool. Potatoes, ginger, peanuts like sandy soil, and peppers and tomatoes need properly viscous soil. Even wolfberry and celery enjoy large amounts of water and fertilizer, while legume vegetables do not require high nitrogen fertilizer. For some new varieties and introduced varieties must first go through a small area of ​​2-3 years to try to plant, if it does a good job and then a large area of ​​cultivation, field varieties without trial must not blindly expand the planting area. Pay attention to the introduction of certified varieties and quarantine products from formal sources. 1. Go to regular seed business companies with business licenses and seed business licenses (preferably to agro-technical departments and seed departments) to purchase vegetable seeds; 2. Look at the seeds on the packaging. Whether the production and business unit is a regular seed enterprise, whether the content marked on the label is complete, whether there is a seed operating license number, whether there is a seed inspection number (seed law requires these contents to be marked on the outer packaging), and whether the variety has passed certification Quarantine with the local agricultural administrative department and, if necessary, contact the manufacturer in accordance with the contact information of the manufacturer; 3. Carefully read the written instructions on the seed packaging. Stronger seed companies are responsible for the farmers and seed users. In principle, the instructions for use of the varieties are closer to reality; while some companies give a name to the vegetable varieties, and in the name of a grandstanding, the instructions for using the seeds are very ridiculous. Don’t believe in unrealistic, exaggerated seed descriptions and advertising campaigns. 4. When you purchase, you must ask the other party to issue an invoice or receipt and leave it as a stub. Pay attention to the cultivation methods of the introduced varieties. The cultivation methods of the imported varieties must be adapted to the local farming habits. If the introduced vegetable varieties cultivation techniques are too complex, it is difficult to succeed in large-scale introduction if most of the vegetable farmers are unable to grasp. If people in a region have a strong sense of science and technology and have a high level of technology in growing vegetables, new varieties can be easily introduced and easily promoted. High-input and high-output varieties should be promoted in areas with better economic conditions, and economically backward areas should develop low-cost, low-risk varieties. Pay attention to market factors In order to enable large vegetable farmers to increase production and increase income through the introduction of fine varieties, it is necessary to pay attention to residents' consumption habits and market factors. According to market demand, the introduction of vegetable varieties can be planted to obtain the best economic benefits. For example, in Guangzhou, there is a habit of eating taro, but in the northeast there is no such thing. Wuhan sells large potatoes in the north in winter, and from March to May, small potatoes in the south go faster. In general, the bases far from the market are suitable for the development of vegetable varieties that are resistant to storage and transportation; the development of fast-growing leafy vegetables in the near cities. After the introduction of new varieties without similar substitute varieties, the efficiency is relatively stable; if alternatives of the same kind have lower costs, it is difficult to obtain more efficient results.