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出口黄皮洋葱要求外皮紧包而完整,直径7厘米以上。“大宝”引入如皋市栽培已经5年,表现出良好的适应性、抗病性,产量高,商品性好,深受外商欢迎。现将大宝黄皮洋葱的特性及栽培技术介绍如下。1.特征特性大宝洋葱,中熟,如皋市成熟采收日期一般在5月底～6月上旬,鳞茎圆球形,横径7～9厘米,最大横径12厘米,纵径6～7厘米(栽得过深的除外),球形指数0.80～0.85。外皮橙黄色,商品洋葱葱头平均单球重240克左右。内部鳞片乳白色,每株有8～9枚管状叶,叶长70厘米左右,叶较直立。鳞茎辛辣味淡,肉质紧密,抽苔率低.生食带甜味,品质优,耐贮藏。耐寒,较耐紫斑病、霜霉病等。一般亩
Export yellow onion skin tight and complete package, more than 7 cm in diameter. “Dabao” Rugao cultivation has been introduced for 5 years, showing good adaptability, disease resistance, high yield, good commodity, welcomed by foreign investors. Now the characteristics of big yellow onion and cultivation techniques are described below. 1. Characteristic characteristics Dabao onion, ripe, Rugao mature harvest date generally at the end of May to early June, spherical bulbs, diameter 7 to 9 cm, the maximum diameter of 12 cm, 6 to 7 cm in diameter Get too deep excluded), spherical index 0.80 ~ 0.85. Skin orange yellow, onions average onion weight 240 grams or so. Internal scales milky white, each plant has 8 to 9 tubular leaves, leaves about 70 cm long, leaves more upright. Bulb spicy light, meat close, low moss rate. Raw food with sweet, excellent quality, storage resistance. Hardy, more resistant to purple spot, downy mildew and so on. General mu