Key points of planting techniques of Welsh Onion

One choice is suitable for Nanzhao cultivation, there are two kinds of common scallions and shallots.

Common green onion dispersion is weak, and to onion sticks, onion white, onion leaves for edible products, mainly to onion seed reproduction. Its varieties are Zhangqiu scallions, Chinese onions, at that time Changbai striped onions. The local shallot is propagated by ramet, with strong dispersing power, less spicy taste, short white onion and mainly eating leaves.

II. Land selection and land preparation

Green onions for the soil requirements are: deep soil layer, strong moisture retention of fertile sandy loam, deep rake, rake flat, ploughed layer depth of 25 cm.

Third, fertilizing in topdressing

Green onions prefer fertilizer all their lives. 2000 kg of organic fertilizer or biogas manure should be applied per mu, and 50 kg of three-element compound fertilizer should be applied, combined with the addition of calcium, boron and other trace ingredients. In the vigorous growing season, it is appropriate to apply quick-acting fertilizer 2 ml 3 times, each time 5 kg 7 kg. If it is spring onion, the Beginning of Autumn, the End of Heat, White Dew and the Autumn Equinox, 6 kg of compound fertilizer containing Li, 5 kg of magnesium sulfate and 3 kg of manganese fertilizer should be applied in combination with soil cultivation. 0.5 kilograms of borax, but the green onion quality is good and the output is high.

IV. Field management

Spring onions move seedlings to slow seedlings, and the growth is relatively slow. at this time, the management measures are: no drought, no watering, timely drainage, so as to avoid rotting roots and dead seedlings, ploughing and weeding after rain to promote the development of grass roots, so as to make the onions grow rapidly. After the Beginning of Autumn, the air temperature decreases, green onions enter the peak growth period, especially after White Dew, the growth time, water, fertilizer and soil demand is the greatest, at this time should be half a month once fertilizer, watering once Cultivate the soil once, each time to cover the length of the top leaves, must not bury the heart leaves, so as not to affect the growth of green onions, harvesting and storage between the Beginning of Winter and Lesser Snow.