Cultivation techniques of red onion

Red onion, also known as small red garlic, bulbs into oval, purple, is a more unique seasoning vegetables. The onion plants sold on the market were not common, but they tasted good and had high nutritional value. Moreover, they were also a good medicine for coughing up blood. If they were planted, they believed that the benefits would be good. Some people will definitely ask how to plant this red onion, so I will introduce it to you next.

1. Land selection and preparation

Select fertile, deep, transparent, water-retaining, sunny flat land, and then no similar planting nearby, land that has not been planted with red onion before or land that has not been infected with common diseases. Land preparation ridging, to first plow, can be plowed in depth of 15 cm can be, red onion bulbs are not big, root system is not long. Finely crush all the soil, dry it for another week, sow it three days after spraying, and the width of the ridge shall not exceed 1.3 meters and the length shall not exceed 8 meters.

2. Planting

Sowing in the autumn, the best time is August to September, can be used to sow the summer seed. Choose healthy and full bulbs to plant, generally plant a bulb at intervals of 5 cm, do not plant too closely, plant spacing is about 3 to 5 cm. Then when planting, you can directly dig a hole 4 cm deep and 5 cm wide on the ridge surface for planting, and directly put it into the bulb to cover the soil.

3. Water and fertilizer management

In sunny days, water should be watered in the morning and evening when there is no sun to keep it moist. Then, the soil should always be kept dry and wet. It should not be dry. In rainy seasons, drainage channels should be excavated to drain water. Cultivation time long base fertilizer should be enough, and then it is necessary to apply fertilizer many times, base fertilizer to nitrogen, phosphorus and potassium compound fertilizer, base fertilizer 300 jin compound fertilizer per mu. Early long plants can be applied 40 jin nitrogen fertilizer per mu once. Bulb expansion period, topdressing once 300 jin farm manure, topdressing twice, but also a mu of magnesium sulfate supplement 2 kg ~3kg, add plant ash.

4. Weeding

Weeds often grow between planting lines of onions, so pay attention to applying herbicides before planting, and pull out grass seedlings as soon as possible after planting to avoid competing for nutrients of onions. Then it is to loosen the soil after rain. Generally, planting between rows is dense. Do not use tools such as hoes. Use small sticks to loosen the soil and loosen the soil by 5 cm. Do not hurt the roots.

5. Seed retention

Planting winter to March of the second year, we should start to select and cultivate seeds, to choose healthy, disease-free bulbs, harvested in May. Remove some stems and leaves on the ground, clean up the bulbs, dry them a little, and hang them in dry and ventilated places.

The above is the cultivation of red onion planting techniques, I hope, after reading can help you. After learning and understanding, you can plant seeds according to your previous experience of planting similar plants and combining with actual environmental and climatic conditions. The contents here can provide some references.