The root system of onion is mainly composed of string adventitious roots, so the root system is underdeveloped, the ability to absorb fertilizer and water is weak, and the soil conditions are high. Therefore, it is best to choose loose, fertile and water-retaining neutral sandy loam that has not been planted with onion and garlic vegetables in recent two years. Onions are usually planted by transplanting seedlings. The broadcast date is very strict. If the sowing date is too early, the onion seedlings will be strong and prone to immature bolting. But if it is sown too late, the seedlings will be small, which is not conducive to overwintering and the yield will be very low. When raising onion seedlings, we usually use wet sowing method, first soak it in clear water for a few minutes, and then soak it in hot water for about half an hour. Stir constantly when soaking, then take it out and soak it in water for several hours to accelerate germination. We should keep the soil moist until the seedlings are unearthed. After the seedlings are ready, we should water them every other week or so. After the seedlings grow tall, they should be weeded in time and the spacing between plants should be kept.

Many farmers also said that growing onions is a very cost-effective thing. Onions can better adapt to some soils and environments, so farmers don't need to worry too much about planting onions, just fertilize and water them every day. Ensure that onions grow well every day, so that onions can have a good growth state.

Many people like to eat onions, and onions are also a good seasoning. Many farmers basically scatter onion seeds in the fields, so there is no need to worry too much about anything in the future. Although onion planting is simple, farmers also need to increase onion production faster, which can also bring good income. It is also a very bad thing to say that onion production is not high. Many farmers can't accept this situation. After all, the output of onion is related to the development of farmers, which also makes many farmers pay special attention to it. Therefore, onion needs constant fertilization and watering to obtain good yield. Fertilization, in particular, is a very critical period.

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