【摘要】 【目的】研究甘蔗宽行距种植与当地常规行距(1.0 m)种植对宿根蔗产量和品质的影响效应以及不同品种对不同行距的适应性,探索适应不同收获机型的甘蔗品种和甘蔗宽行距宿根管理技术,为甘蔗机械收获的大面积推广提供依据。【方法】在新植蔗种植行距试验的基础上,留宿根观察,以桂糖29号、福农39号和粤糖60号3个优良品种为供试甘蔗品种,设3种种植行距(1.0、1.2、1.4 m),对其在3种种植行距下农艺性状进行研究。【结果】种植行距1.4 m处理,桂糖29号每667 m2含糖量734 kg,比对照增产26.99%,粤糖60号宽行种植处理与对照接近;桂糖29号和粤糖60号在宽行距种植下其农艺性状、产量性状综合表现均优于对照,对宽行种植具有良好的适应性。【结论】福农39号在宽行距种植上不具有优势,不适宜进行中大型机器种植管理;桂糖29号对宽行距种植具有良好的适应性,生产上可采用1.4 m行距作为适宜机械化全程种植管理的最佳行距;粤糖60号对宽行种植也具有良好的适应性,生产上可采用1.4 m行距作为机械化全程种植的最佳行距。更多还原

【Abstract】 【Objective】The research was to investigate the effect of sugarcane wide row planting and local conventional planting distance(1.0 m) on the yield and quality of ratoon sugarcane and the adaptability of different varieties to different row spacing, explore the sugarcane varieties adapted to different harvesting machinery and sugarcane ratoon wide row distance management technology, and provide a basis for the wide spread of sugarcane mechanical harvesting. 【Method】 The test was conducted based on a test of different sugarcane planting intervals in a year. In the second year, live roots were observed in this experiment A test for newly planted sugarcane at different row spacing was conducted, leaving ratoon for observation. Three good varieties including GT 29, FN 39, and YT 60 were used as tested sugarcane varieties, and three different row distances(1.0,1.2,1.4 m) were designed to study their agronomic traits. 【Result】 Under the row spacing of 1.4 m, GT29 had a sugar content of 734 kg per 667 m2, which was 26.99% higher than that of the control, while the wide-rowspacing planted YT60 had a sugar content similar to that of the control. The comprehensive performance of agronomic and yield traits of GT29 and YT60 under wide row spacing planting was better than that of the control, which indicated that GT29 and YT 60 had good adaptability to wide row spacing planting. 【Conclusion】 FN39, which has no advantage in wide row spacing planting, is not suitable for medium and large scale mechanization planting management. GT29 has good adaptability to wide row spacing planting, and a row spacing of can be regarded as 1.4 m as the optimal raw spacing for full mechanization planting.更多还原