What issues need attention during onion cultivation?

Speaking of onions, we are all certainly familiar with them. Many people cry while cutting onions because the smell of onions is just too pungent, but their nutritional value is very high, and the taste is not bad either. Here the editor tells everyone that when cutting onions, dip the onion, the kitchen knife, and your hands in water, so cutting onions will not sting your eyes. However, what the editor wants to share today is some precautions about onion cultivation compiled by the friends at Qinong.com. As for little life tips, you can follow us to keep learning more.

1. Seed selection

When it comes to seed selection, everyone knows that high-quality varieties must be chosen, so how do we choose? First, we need to understand the local onion cultivation situation and see how the varieties they choose perform and whether the yield is high. Second, analyze the market to see whether growing this variety of onion is competitive. After choosing the variety to grow, the next step is to select high-quality seeds from it. We mainly do this by observing whether the seed color is bright, whether the seeds are plump, and whether there are pests or diseases. If not, then it is fine.

2. Time

Whether the onion planting time is chosen correctly has a huge impact on onion yield, so great attention must be paid when choosing the planting time. Although onions can be planted all year round, if you want the onions you grow to have both high yield and high quality, then it is best to choose to plant in August and September. At this time, the temperature in general areas is about 20 to 25 degrees, which is most suitable for onion germination and growth.

3. Watering

Before sowing, we must first water the land once to ensure soil moisture. Next, when the onions grow three leaves, they need to be watered. During the onion growing period, a certain amount of moisture is needed, and it cannot be too dry, otherwise the onions below will not grow large, and the onions that grow will also lack water. Usually we water once every week, but note that in winter it must not be watered, otherwise the onions will rot.

4. Fertilizing

Fertilizing is a very important part of onion cultivation, so special attention is needed. If the wrong fertilizer or the wrong amount is used, it will cause irreparable loss to onion growth. When conditions allow, it is best to mainly use farmyard manure or organic compost, supplemented with an appropriate amount of chemical fertilizer. On average, one mu needs about two thousand jin of fertilizer, of which the amount of chemical fertilizer is about three hundred jin. Next, onions need sufficient nutrients during the growing period, so we should apply additional fertilizer in appropriate amounts according to the growth condition of the onions, and at the same time choose what kind of fertilizer to apply as a top dressing according to the specific situation.

5. Pest and disease prevention

The most common pests and diseases of onions are downy mildew, damping-off, and onion maggot. The control method for downy mildew and damping-off is generally spraying with chlorothalonil or Bordeaux mixture, while for onion maggot we can water the field, because onion maggot is very afraid of water and will run away or even drown. Finally, trichlorfon crystals can also be used for control.