一季番薯半年粮一亩山芋两亩谷一坵山芋一坵芋,一年不用开米柜三株番薯动得火,三株养麦没一把甘薯、水稻、玉米都是高产的粮食作物,但甘薯的单位面积产量又超过其他两种。在本省一般每亩可收鲜薯3,000斤左右,如折成干粮就可达750斤,在同样施肥管鲤水平下,每季产量常可超过其他作物一倍以上。甘薯在粮食作物中每亩产量和产热量都是首屈一指的。而且甘薯又具有耐旱、耐瘠、病虫害少、抗灾能力强、栽培管理容易等优点,适当扩大甘薯种植面积对提高粮食产量来说是会起很大作用的。三块番薯一斤半,做种顶合算 A quarter of sweet potato half a year of grain a mu of Yamuqiu Yamuqiu a cup of Yam, a year without rice barrels three sweet potatoes moved to fire, three wheat did not have a sweet potato, rice, corn are high-yielding food crops, Sweet potato production per unit area and more than the other two. In our province, about 3,000 kg of harvested potatoes per acre are generally available, and up to 750 kg if converted into dry food. Under the same fertilization management level, the output per season may more than double that of other crops. Sweet potato in the food crop per acre yield and calorie production are second to none. Moreover, sweet potato has the advantages of drought tolerance, barren resistance, few pests and diseases, strong disaster resistance capability and easy cultivation and management. Appropriate expansion of sweet potato planting area will play a significant role in increasing grain yield. Three sweet potatoes a pound half, do kind of cost-effective