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新宁县黄龙镇有旱土265.3公顷,1994年开始试验玉米地套插红薯,1996年玉米地套插红薯176.8公顷,平均每667平方米产玉米481.2公斤、红薯折谷
Huanglong Town, Xinning County has 265.3 hectares of dry land. In 1994, corn plants were planted with sweet potatoes. In 1996, corn was planted with 176.8 hectares of sweet potato, with an average of 481.2 kilograms of corn per 667 square meters.