北缘蔗区宿根甘蔗栽培技术研究

本研究以湘北蔗区常规甘蔗品种ＣＰ６５－３５７，ＮＣｏ３１０为材料，从１９９１－１９９５年设置了对春植蔗蔗蔸冬季地膜覆盖处理，对处理进行了气湿，地温的观察。结果表明：在北缘蔗区进行宿根栽培必须以地膜覆盖为前提，才能保证蔗蔸上的蔗芽下沉越冬，宿根蔗明显地表现出出苗早，生长期长，产量高，成熟早，糖分高经济效益和社会效益好，可在北缘蔗区广泛推广应用。

A Study on Ratoon Cultivation Techniques in the North Margional Cane-growing Region

A study was condueted from 1991 to 1995 with leading varieties, i. e. CP65-357 and NCo310 in Northern Hunan. The stubble of spring-planting sugarcane was covered with plastie film in different stages in wintet; and atmospheric and ground temperature were observed. The results revealed that is was imperative to cover perennial stubble with plastic film so as to guarantee buds sutvived ovet wintering normally. The tatoon cane demonstrated with catlier cmergence; longer growth period,high production, earlier maturity and higher sucrose content. This cultivation technique shows obviously beneficial both to economy and social community, and can be promated and applied in northern margion of sugarcane region.