Detailed explanation of scallion seed-saving techniques, teaching you how to save scallion seeds well

The scallion seed-saving method: when harvesting scallions, select plants that possess the variety's characteristics, dry them briefly in the field, and immediately plant the whole plants into an isolated plot that has not grown the same crop previously. The width and depth of the trenches are generally 30-35 cm, with a trench spacing of 70-80 cm; 1-2 rows can be planted per trench, with high-quality farmyard manure and urea applied in the trench. Then insert the scallions. Carry out earthing up before the soil freezes. In February of the following year, when new leaves sprout on the ridge backs, it marks the beginning of the seed plants turning green again. Promptly cut off the upper 20 cm of withered tips and level the earthing-up soil. In early March, water for turning green. From mid-to-late April to early May is the full flowering period, so promptly apply additional urea or compound fertilizer; watering should be controlled during the bolting stage, and watered promptly during the flowering period to keep the ground moist, but waterlogging that rots the roots must be prevented. During the flowering period, use manual hand-assisted pollination, and spray New High Lipid Film while paying attention to disease prevention and control.

Another method is the seed-saving method for bunching onions and chives, which mostly uses division propagation, requires a dedicated seed-production field, and does not involve harvesting. Cultivation in the seed-production field is the same as in production fields, but the amount of nitrogen fertilizer applied should be appropriately reduced while phosphorus and potassium fertilizers should be appropriately increased. Generally, seed-production fields planted in spring are divided and replanted in autumn; seed-production fields planted in autumn are divided and replanted in the following spring.