Generally are more similar, long leaves grow underneath a longer white onion, and thick and thin, if you need to be based on the species.

Fine onion, northern onion, fire onion, Latin name Alliumascalonicum. lily family, onion plants. Bulbs aggregated, rectangular-ovate, narrowly ovate or ovate- terete. The outer skin of the bulbs is reddish brown, purplish red to yellowish white, membranous or thinly leathery, not ruptured. Leaves are hollow cylindrical, acuminate toward the tip, dark green, often slightly whitish. The plant is small and the leaves are extremely fine. The texture is tender, the flavor is fresh and slightly spicy, and it is mainly used for flavoring and deodorizing.

Shape is cylindrical, and the surface color of the bulb is white with some reddish-brown film on it. In addition, its flowering and fruiting period is between April and July.

Scallion Introduction

Select plots of land that have fertile soil, can be irrigated and drained, and have not been planted with onion and garlic vegetables in 3-4 years. Each mu of nursery beds sprinkled with fully rotted farmyard manure 2500 kg, deep plowing and fine harrowing, made 100 cm wide flat beds. General fall average temperature stabilized at 16.5-17.0 ℃ for the appropriate sowing period, sowing to the soil freezing 50-60 days. The general use of strip sowing method of sowing, row spacing 15-20 cm, 3-4 kilograms of seed per mu Chuan.

Autumn sowing is generally 6-8 days seedling, due to the high temperature at that time, the seedbed should be noted moisture. After sowing covered with mulch when the seedlings uncovered in time, seedbed watering should depend on the soil conditions. General out of all seedlings after watering a small water, soil freezing watering overwintering water. After pouring frozen water, you can spread a layer of horse manure, soil fertilizer or grass ash 1-2 cm on the nursery bed. In order to facilitate the cold and moisturizing, seedlings safe overwintering.

The next spring after the soil freezes, you should promptly put the mulch out of the bed, seedlings grow 3 true leaves, combined with watering fertilizer 2-3 times. Each time with about 15 kg of ammonium sulfate, or urea 6-7 kg. At the same time, nearly green to pull weeds in time for the second inter-seedling. About 7 days before planting, stop watering. Return to the line of refining seedlings to improve the survival rate of planting.

Reference: Baidu Encyclopedia - green onion