In the face of dazzling new varieties, many vegetable growers cannot choose the varieties due to market demand due to the time and place, often resulting in a decrease in revenue due to blind selection. The first is for small profits. Some dealers seized the ideas of some vegetable farmers for small profits, and applied small favors when selling seeds. These blinded farmers no longer considered the pros and cons of varieties, and they were prone to quality problems after planting. The second is blind pursuit of new ideas. Some vegetable farmers believe that as long as they are new varieties, they are better than the old ones. Therefore, when they choose varieties, they always work hard at the new varieties, and they are often subject to losses and losses. To a certain extent, new breeds can indeed obtain higher benefits, but a new variety without trials or field trips and expert introductions is best not to risk buying to avoid losses. The third is blindly following the trend. Some growers like to follow the flow when they choose to breed. Others plant seeds. However, in production, we often see the fact that the same is a variety. Some vegetable growers perform very well, while others perform poorly. Why? This shows that the selection of species should be based on the conditions of soil, water and fertilizer, and management levels in their greenhouses. Do not follow the flow. When choosing a variety, it is necessary to pay attention to overcoming the above-mentioned misunderstandings, and to try out new varieties first.