How to Grow Chinese Scallions? Detailed Planting Methods and Techniques
Chinese scallion is also called jiao tou, with the botanical name Allium chinense, a perennial root herbaceous plant of the Liliaceae family. It has been cultivated in our country since ancient times, with a history of 3000-4000 years. Today let's talk about how to grow Chinese scallions.
I. Sowing
The planting period is best in early September, and the planting methods include clean planting and interplanting.
II. Planting Density
The row spacing and plant spacing are 20-25cm×10-15cm. Before planting, plow and prepare the land, apply decomposed barnyard manure as base fertilizer, 2500kg per 667㎡, combined with 25-30kg superphosphate and 5-7.5kg potassium chloride, or 30kg ternary compound fertilizer. Make beds 1.2-1.5m wide, punch holes or dig planting furrows, select seed bulbs that are uniform in shape, medium in size, and free from disease and pest damage. The seed rate per 667m2 is 75-100kg, using 30,000 seed bulbs, planting one seed bulb per hole, and covering with burnt mud ash. To prevent the Chinese scallions from being exposed above the soil surface and turning green with a bitter taste, plant the seed bulbs obliquely in the planting furrows during planting. Later when they grow into plants, there will be a curved neck between the Chinese scallion and the leaves, so that the Chinese scallions will not be exposed above the soil surface by rain erosion, ensuring the Chinese scallions remain white and not bitter. Chinese scallions grow slowly during the year, so other short-season crops can be interplanted.
III. Field Management
After planting, they sprout and emerge in 7-10 days. After emergence, carry out intertillage and weeding, apply light fertilizer frequently, and topdress with decomposed human manure and urine 2 times. Apply overwintering fertilizer once during the year, spreading organic fertilizer between the rows, 1500kg per 667㎡. When the weather warms up in spring, topdress with 10-15kg urea per 667㎡ to promote seedling growth. In April, topdress with 15kg ternary compound fertilizer per 667m2. Mid-May is the bulb enlargement period for Chinese scallions, so heavy topdressing is required: apply 7.5-10kg urea per 667㎡, combined with 7.5kg potassium chloride, or 25kg ternary compound fertilizer. After each topdressing, combine with intertillage and weeding and carry out hilling to ensure the Chinese scallions remain white. When plant vigor gradually declines, leaf bundling can be carried out to promote bulb enlargement, performed half a month before harvest, and not too early.
IV. Pest and Disease Control
Chinese scallions are relatively disease-resistant, but downy mildew occurs in old production areas, which can be controlled with dufulin or phosethyl-Al and mancozeb. For rust, triadimefon can be used. For viral disease, zhibingling or virus A can be used. Among insect pests, there are thrips, which can be controlled with mieshabi. Aphids can be controlled with yibianjing. Harvest and bring to market in mid-June when the leaves turn yellow.