粤糖甘蔗新品种高产种植模式研究

High Yield Cultivation Models of New “Yuetang” Sugarcane Varieties

采用正交旋转组合设计，建立相应的数学模型，研究粤糖新品种55号、60号种植行距和下种量对产量的影响。试验表明，种植行距和下种密度对粤糖新品种55号、60号均有显著影响，结合甘蔗品种性质，粤糖55号应以增加种植行距为主来实现增产的目的，而粤糖60号要获得较好产量，应在增加行距或降低行距时．下种量都要求相应地增加或减少。在云南蔗区坡度为0°-15°的蔗区实现粤糖新品种55号和60号机械化种植应适当增大行距．来实现甘蔗高产。

Effects of different raw spacing and planting density on yield of new sugarcane varieties Yuetang 55 and Yuetang 60 were investigated by using combination design of orthogonal pivoting and quadratic regression equation. Results showed that row spacing and planting density had significant impact on cane yield of trialed varieties. The yield of Yuetang 55 increases with increasing row spacing, while Yuetang 60 would get higher yield when increasing or decreasing planting density with increasing or decreasing row spacing at the same time. In Yunnan province, mechanization cultivation of sugarcane should increase row spacing appropriately at the region slope of 0°~ 15°.