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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 1 990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 ,目前推广面积达 1 0 0 0多hm2 ,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hm2 增加收入 5万～ 6万元 ,经济效益显著。
In order to discuss the production technology of ginger-garlic intercropping and increase the economic efficiency, Wulian County started to revamped ginger one year as a intercropping system of ginger and garlic for one year from 1990, raising the multiple-cropping index and land utilization rate. Currently, the promotion area is more than 1 0 0 hm2, ginger accounts for more than 90% of the area planted. Experiments show that ginger and garlic intercropping than a year for ginger per hm2 increase income 50000 ~ 60000 yuan, significant economic benefits.