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一、概述甘薯在我国已有400年的种植历史,由于其高产、稳产、适应性强、栽培技术简单,因此种植区域很广。除少数高寒地区外,几乎遍布全国。近年来,我国甘薯的种植面积约550万公顷,占世界甘薯种植面积的60%左右,鲜薯总产量约1.06亿吨,占世界甘薯总产量的85%左右。其中,四川、河南、山东、安徽、重庆等省市种植面积较大,河南省种植面积常年稳定在40万公顷左右,每公顷鲜薯产量约23吨左右,主要分布在南阳、洛阳、三门峡、周口、商丘、安阳等地。
I. Overview Sweet potato has 400 years of planting history in our country. Due to its high yield, stable yield, strong adaptability and simple cultivation technique, the planting area is very wide. In addition to a few alpine regions, almost all over the country. In recent years, China’s sweet potato planting area of about 5.5 million hectares, accounting for about 60% of world sweet potato acreage, the total output of about 106 million tons of fresh potatoes, accounting for about 85% of the world’s sweet potato production. Among them, Sichuan, Henan, Shandong, Anhui, Chongqing and other provinces have larger planting areas. The planting area in Henan Province has been steadily growing at about 400,000 hectares per year and the output of fresh potatoes per hectare is about 23 tons, mainly distributed in Nanyang, Luoyang, Sanmenxia, Zhoukou, Shangqiu, Anyang and other places.