The green onion autumn seedlings are usually planted in early September. It is easy to spring and twitch early, and it is easy to freeze to death in the evening. Before wintering, the seedlings have 2-3 leaves, the plant height is about 10 cm, and the base of the pseudo-stalk is less than 0.5 cm. Seed treatment: soak the seeds in clean water for 10 minutes, remove the impurities from the sorghum seeds, and then immerse the seeds in warm water of about 65 degrees for 20-30 minutes, and continue to stir. Seed soaking can be unearthed 1-2 days in advance.
Seeding with new seeds of the current year, the amount of seeding per acre is 3-4 kg, which can be used to plant 6-8 mu of land; if the seed of the previous year is used, the seed should be more than doubled, and the seeds of more than two years can no longer be used. Spread and strip can be used for sowing. The seedbed is filled with the bottom water, evenly planted, and then covered with fine soil about 1 cm. The seeding is a shallow trench with a depth of 1.5-2 cm in a row of 12 cm in the raft, and the seeds are sown in the ditch.
Manage the green onions before and after emergence to keep the seedbed moist to ensure that the seedlings are unearthed normally. After emergence, before wintering, it is generally not dry or poured, and it is watered and fertilized according to the use of base fertilizer and the growth of seedlings. Pour frozen water before freezing. When the average temperature rises to 13.5 degrees on the day when the green onions turn back to green, the green water begins to be poured back, and the green fertilizer is applied at the same time. After that, it is necessary to plant seedlings, cultivating, controlling water and seedlings for 12-15 days. After the seedlings, the green onions should enter the vigorous growth period. In this period, 2-3 times of watering and topdressing should be carried out. Urea 20-30 kg per acre.
The seedlings between the seedlings must be divided into two parts; the autumn seedlings are carried out in the slow seedling period after the second year of pouring back to the green water, the seedling distance is kept at 2-3 cm; the second time is when the seedling height is about 20 cm, each time The actual amount of seedlings per mu is about 140,000. The sowing seedlings can reduce the plant spacing to maintain sufficient nutrient area per plant according to the above requirements.
Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
Anesthesia Breathing Circuit Sterilizer
Anesthesia Breathing Circuit Sterilizer,Hydrogen Peroxide Disinfection Machine,Hydrogen Peroxide Sterilizer,Anesthesia Machine Ventilator
JIANGSU JIANLAIBANG MEDICAL EOUIPMENT CO.,LTD , https://www.jsjlbmed.com