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黄皮洋葱、菜葫芦、菠菜一年三种三收是创汇蔬菜较好的栽培模式。三种蔬菜茬口合理,经济效益高。黄皮洋葱亩产4000kg,亩收入3000元以上;菜葫芦收干条100kg,亩收入2500元以上;秋菠菜1500～2000kg,亩收入1500元以上,共计亩收入超过7000元。这种模式在莒南县石莲子镇等地已发展到近1000亩,提供出口蔬菜原料4000多吨。一、种植模式选择土壤肥沃、易浇好排的水浇地,平均3.5m为一间作条带,做3个1m宽平畦栽培黄皮洋葱,每畦栽5行,行距20cm,株距15cm;三畦之间留50cm作菜葫芦套种行,株距1～1.2m,亩植150～200株。菜葫芦收获后整成1～1.5m宽平畦,播种秋菠菜。二、栽培技术要点 (一)黄皮洋葱选用美国太阳牌洋葱、连云港84-1或天津大水桃等品种,9月上、中旬采用平畦撒播育苗,定植1亩洋葱需育苗30～40m~2,育苗畦宽1m,长10～15m,播种量为5g/m~2;播种时搂平畦面浇透水,将种子均匀撒入畦内,覆细土0.5～1cm,畦上盖草或玉米秸遮荫。
Yellow onion, vegetable gourd, spinach three kinds of three a year is a better cultivation of foreign exchange vegetables. Three vegetable stubble reasonable, high economic efficiency. Yellow onion onion yield 4000kg, mu income of more than 3,000 yuan; vegetable gourd harvest stems 100kg, mu income of more than 2,500 yuan; autumn spinach 1500 ~ 2000kg, mu income of more than 1,500 yuan, a total of mu income of more than 7,000 yuan. This model in Junan County Shilianzi Town and other places has been developed to nearly 1,000 acres and provide over 4,000 tons of export raw materials of vegetables. First, the choice of planting mode fertile soil, easy to cast a row of irrigated land, with an average of 3.5m for a strip, make 3 1m wide flat-yellow cultivated yellow onions, planting 5 lines per plant, row spacing 20cm, spacing 15cm; Leave a 50cm between the three 作 Cucurbit seed cover row, spacing 1 ~ 1.2m, acres planted 150 ~ 200. After harvesting gourd into a 1 ~ 1.5m wide Pinggu, sown autumn spinach. Second, the technical points of cultivation (A) the yellow onion Choose the United States Sun licensing onion, Lianyungang 84-1 or Tianjin Peach varieties, in September, the middle and late Pingtong broadcast sowing, planting 1 mu of onions need breeding 30 ~ 40m ~ 2, Nursery 畦 width 1m, length 10 ~ 15m, sowing rate of 5g / m ~ 2; sowing Lou Ping 畦 surface drenching, the seeds evenly thrown into the 畦, covered with fine soil 0.5 ~ 1cm, 畦 cover grass or corn Shaded straw.