Key points of raising seedlings of Onion

We must use falling water to raise seedlings, do a good job in the treatment of soil diseases and insect pests before raising seedlings, use Pulick immediately after emergence to prevent the occurrence of quenching disease and downy mildew, and do a good job of removing weeds. White Dew sowing in Guanzhong area of Shaanxi Province (Sept. 7), other areas refer to the local climate to postpone or advance. Seedling raising method: falling into the water to raise seedlings. The seedling bed was made into a flat bed 1.4m wide, and the length was determined according to the topography. High-quality farm manure 500kg and diamine 2kg were used as base fertilizer for each plot. After deep turning, pour enough water, and so on after the water osmosis, evenly sprinkle onion seeds with a germination rate of more than 75% 0.4kg, cover the soil and cover the sunshade net or other covering. Spraying Prike plus poisoning spleen after emergence can prevent downy mildew, sudden fall disease and the occurrence of onion thrips. Sparse sowing and early sowing are strictly prohibited to avoid vernalization and bolting and reduce yield. In the spring sowing areas of Gansu, * and northern Shaanxi, greenhouse is selected to raise seedlings at the right time, slightly sparse sowing, strong seedlings and high yield.