Planting technique of red onion

Red onions, also known as small red garlic, bulbs into oval, purplish red, is a more unique seasoning vegetables. Now the market is not common, but it is very good taste, high nutritional value of onion plants, but also a good medicine for hemoptysis, if put into planting, I believe the income is good. Someone is sure to ask how to grow these red onions. I will introduce them to you next.

1. Land selection and preparation

Choose the sunny and flat land that is fertile, deep, permeable, water and fertilizer, and then there is no similar planting nearby, and the land has not been planted with red onions or common diseases before. Soil preparation and ridging, to turn the ground first, you can turn the ground at a depth of 15 centimeters, the red onion bulb is not big, the root system is not long. Fine crushing all the soil, drying the ground for another week, sowing three days after spraying, the ridge width is not more than 1.3 meters, the length is not more than 8 meters.

2. Planting

Sowing in autumn, the best time is from August to September, you can use the summer seeds to sow. Choose healthy and full bulb planting, generally every 5 cm to plant a bulb, do not plant too dense, plant line spacing of 3 to 5 cm or so. Then, when planting, you can dig a hole 4 cm deep and 5 cm wide on the ridge surface and put it directly into the bulb to cover the soil.

3. Water and fertilizer management

Sunny days should be watered and kept moist when there is no sun in the morning and evening, and then the soil should always be dry and wet, not dry, and drainage channels should be excavated and drained in the rainy season. The base fertilizer should be enough for a long time, and then it should be topdressing many times. The base fertilizer should be nitrogen, phosphorus and potassium compound fertilizer, and 300 jin compound fertilizer should be applied to one mu of base fertilizer. The early growing plants can apply 40 jin of nitrogen fertilizer and top dressing once per mu. During the bulb expansion period, 300 jin of farm manure was applied once and twice, magnesium sulfate 2kg~3kg was added to one mu and plant ash was added.

4. Weeding

Green onion planting rows are often covered with weeds, so we should pay attention to the herbicide before planting, and after planting, we should quickly pull out the grass seedlings to avoid competing for the nutrients of onions. Then it is necessary to loosen the soil after the rain, generally planting more densely between rows, do not use tools such as hoes, use small sticks to loosen the soil, loosen the soil 5cm, do not hurt the roots.

5. Keep the seed

Planting through the winter to March of the following year, we should begin to choose to cultivate and retain seeds, and choose strong, disease-free bulbs to be harvested in May. Remove the stems and leaves from the ground, clean up the bulbs, bask in the sun a little, and hang them in a dry and ventilated place.

These are the cultivation techniques of red onions. I hope it will be helpful to you after reading. After learning and understanding, you can plant according to your previous experience of planting the same kind, combined with the actual environmental and climatic conditions, here can provide some reference.