How to raise onion

Spring onion seedlings, sowing time is generally before and after the Qingming, only about 60 days from sowing to planting, seedling growth period is short, the post-planting yield is low. Cultivation of onion seedlings by mulching film requires 20 to 30 days in advance for planting. The onion seeds germinate rapidly after covering, and they grow rapidly. It is possible to grow age-appropriate seedlings when planting, and it is more suitable to plant onions for wheat. The main points of nursery techniques are as follows.

1. Seeds: New seed with good seed selection and black shiny seeds. Acre sowing 2 kilograms, to plant 4 acres.

2. Bacterial: Jinbao root seedlings can significantly promote the rooting of onion seedlings and enhance their absorption and fixation ability. It is mainly used for growing seedlings such as onion and garlic, mixing in nutrient soil or planting, transplanting, growing in the late stage of bed-planting, rooting and foliar spraying, which can increase ground temperature, germinate early, and promote weak seedlings to become strong. seedling. When planting and transplanting, the seedlings are quickened and rooted, and they enter the high-yield period in advance. They can prevent leggy, prolong the harvest period, and resist disease and stress.

3. Seeding: Seedlings in the sunny block. In the past, legumes, eggplants, and melons were the most desirable lands for barley. Mushi 5000 kilograms of decomposing circle fertilizer, 80 to 90 centimeters into a flat bowl, 30 centimeters between the intervals, so that the soil after the cover film. In early March, the soil is sown at 2 to 3°C. Immerse germination before sowing. The seedlings were sprinkled with water after infiltration and the mulching film covering a width of 90 to 100 cm after sowing was applied.

4. Management: About 10 days after sowing, the seedlings began to unearth, and the membranes were stretched. The two sides were supported with bamboo or purlins to a height of 10 cm and compacted with soil around them. When the seedling height is 6 to 9 cm, 3 cm square sparse seedlings are planted, and the water is applied to the human body to excrete 1000 to 1500 kg of water, and the film is gradually peeled off for open field management. Seedling height 12 to 15 centimeters and 15 days before planting, each chase 1 fertilizer, each application of ammonium sulfate 10 to 12 kg. Pull grass in time.

5, pest control: seedling stage with 1:1:200 equal amount of Bordeaux mixture or 655 generation of Sen Zinc, 75% chlorothalonil 600 times spraying control purple spot; with leaves leaching solution with 90% trichlorfon 400 times At night, the field tigers are put into the field.

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