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宿根蔗是甘蔗收获后,留在土中的蔗头继续萌芽成长起来的甘蔗。这类甘蔗在我区过去面积比较大,近几年来仍保持占植蔗面积的四成左右,一般都留一至二年宿根。它的好处是不用重新种植,节省种苗、劳力、错开农时、成熟早、产量高。但我区宿根蔗单产比较低,一般比冬、春植蔗的产量低20—40%,甚至一些蔗区不愿留宿根。其主要原因是思想不重视,忽视抓管理,因而形成宿根蔗田缺株多,发株少,分蘖慢,成茎率低,蔗株矮,蔗茎细,亩有效茎数少,所以单产低。
Rooting sugarcane sugarcane is the root of sugarcane harvest, remain in the earth to continue the germination of sugar cane growing up. This kind of sugarcane in our area in the past a relatively large area, in recent years still accounted for about 40% of the area of sugarcane, usually stay one or two years of perennial. Its advantage is not to replant, save seedlings, labor, stagger the agricultural, mature early, high yield. However, the yield of ratoon cane in our district is relatively low, generally 20-40% lower than that of winter and spring, and even some cane areas do not want to stay in the root. The main reason is the neglect of thought, neglect of grasping management, and thus the formation of perennial ramie lack of more lines, fewer plants, slow tillers, stems into a low rate, short cane, sugarcane stems, acres of effective stems less, so low yield .