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为探讨姜蒜套种的生产技术,提高经济效益,五莲县自1990年开始改生姜一年一作为生姜大蒜间作套种,提高了复种指数和土地利用率,目前推广面积已占生姜种植面积的90%以上.试验表明,姜蒜套种比一年一作生姜每hm~2增加收入5万～6万元,经济效益显著.
In order to explore the production technology of ginger and garlic intercropping and improve economic efficiency, Wulian County started to revamped ginger one year as a intercropping system for ginger and garlic for one year in 1990, which improved the multiple cropping index and land utilization rate. The current popularized area accounted for 90% of ginger planting area % .Test shows that ginger and garlic intercropping than annual ginger per hm ~ 2 increased income 50000 ~ 60000 yuan, significant economic benefits.