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韭菜为多年生宿根植物。经过软化栽培的韭黄,品质柔软、味美,很受群众欢迎。但广州软化栽培韭黄的方法,普遍用一种特制圆筒形瓦筒罩在韭菜上,利用上面盖瓦盖的遮光方法软化栽培韭黄。热天7—8天收割,冷天10—12天收割。这种方法烦琐费工,成本高,产量低(约占韭菜产量的20％)。我所为了提高韭黄的产量,以适应广大群众及出口日益增多的需要,研究试用黑色塑料薄膜培育韭黄。试用的材料是大叶韭菜品种。播种期11—12月,定植期3—4月。到冬季可收割青韭,每次收获后即行中耕除草、施肥、培土。第二年为盛产年,收青韭、韭花为主。第三、四年每收一次青韭后就可软化栽培一次韭黄,也可于第二年盛产年进行软化,但生产韭黄太
Leek perennial perennial plant. After softening cultivated chives, soft, delicious, very popular with the masses. However, the method of softening cultivated chrysanthemum in Guangzhou, generally with a special cylindrical shroud cover the chives, the use of shingles above cover shading cultivation of chives. Harvest 7-8 days in hot days and harvest in 10-12 days in cold days. This method cumbersome labor, high cost, low yield (about 20% of leek production). In order to improve the production of chives and to adapt to the increasing needs of the general public and export, I tried to cultivate chive by experimenting with black plastic film. Trial materials are large leek varieties. Seeding period 11-12 months, planting period 3-4 months. To the harvest of green leek winter, after each line of cultivation weeding, fertilization, earth. The second year is rich, close allium, allium mainly. In the third and fourth years, green chives can be softened and cultivated once for each harvest, and can also be softened in the second year of rich production. However,