Try to buy seeds from large-scale, reputable seed companies and research institutes; some small, unfamiliar business units should be sold with caution, not to buy cheap seeds in the market.

Many seed companies' propaganda about seed characteristics emphasizes good performance, and often smothers or avoids the weak features. It is not clear that it is suitable for planting areas. Therefore, try to use local varieties that have performed well and planted for many years. If you want to replace a new variety, you must first try it on a small plot of land, and then gain a lot of experience after a large area of ​​introduction, do not blindly introduce large areas, let alone believe in the false propaganda of the sales unit.

For the cultivation of vegetables for export, such as carrots, spinach, onions, etc., the imported vegetable seeds should be used as much as possible. On the one hand, the product characteristics of these seeds meet the requirements of foreign consumers. On the other hand, the seeds imported into China are mostly large multinational companies with good reputation and the quality of seeds is generally guaranteed. Domestically produced such vegetable seeds are generally low in price, but some products do not meet export requirements, and some are not high in purity, which may affect product sales.

At the time of purchase or introduction, attention should be paid to the geographic latitude. Most vegetable seeds should be introduced at the same latitude, such as many bean varieties, varieties or seeds originating in the southern region. After being introduced to the north, the growth period is prolonged due to the extension of sunshine hours, which delays the pod-forming period and reduces economic benefits. The onion varieties originating in the north are introduced to the southern regions with short sunshine, which tend to grow vigorously, while the bulb yield is not high. When the southern varieties are introduced to the north, the growth period is significantly shortened and the bulbs are greatly reduced.

Garlic is shrinking year by year due to the virus disease, and the output is decreasing year by year. In order to alleviate the harm of viral diseases, the production areas are replaced by different methods. When changing species, we should pay attention to changing from the northern regions as much as possible, because the northern part of the country is colder than the southern part of the country, and the virus disease is relatively light, so the effect is better.

Potatoes must be purchased from detoxified varieties. These varieties have a short growing period and are lightly infected. Some varieties on the market, the growth period is too long, no virus, strong growth after planting, and the output is extremely low.

Domestically sold vegetables should pay attention to the needs of consumers. For example, the northern region likes to eat the top-stinged cucumber, and the eastern region likes the red-skinned onion. When planting, it must purchase the corresponding varieties according to market demand.

Note the date of manufacture. Many seeds have a short shelf life, such as green onions, onions, leeks and other seeds that lose their productive capacity after one year of storage. The optimal service life of common vegetable seeds is 1 to 2 years. Therefore, pay attention to the date of production when buying seeds, and do not buy expired dishes.

Ask for the invoice and keep it in a safe place. If there is a quality problem, make a timely claim to the sales unit.