The most suitable sowing date of onion is in the environment of 10-12, usually in the middle and late September. The whole growth cycle of onion from seed germination to flowering and fruiting can generally be divided into three stages: vegetative growth period, dormancy period and reproductive growth period. In different periods, onion plant morphology will change obviously, and the requirements for environmental conditions are not the same.

Onion planting time

The most suitable sowing date for onion is 10-12, usually in the middle and late September, when it grows best.

Onion growth cycle

The whole growth cycle of onion from seed germination to flowering and fruiting can generally be divided into three stages: vegetative growth period, dormancy period and reproductive growth period. In different periods, onion plant morphology will change obviously, and the requirements for environmental conditions are not the same.

Cost and profit of onion planting

The yield per mu of purple onion reached 1 10,000 Jin, and the benefit per mu was more than 5,000 yuan, so the overall benefit was good. From the analysis of the growth situation, the benefits of onions are promising.

Key points of onion planting technology

1, temperature: Onions like warm environment, but the temperature should not be too high, and the most suitable temperature should be maintained at about 25 degrees.

2. Watering: When the onion is in the seedling stage, water it a little. After the seedlings grow up, the temperature rises, and the watering amount is increased once every 10 day.

3. Fertilization: Onions should be applied with an appropriate amount of nitrogen fertilizer. Too much nitrogen fertilizer is easy for seedlings to grow vigorously, but onions can't grow normally.