摘要
本试验以桂糖85/8、粤糖63/237、桂糖11号和桂糖15号共4个甘蔗品种作为供试材料,于分蘖初期以0.2%(质量分数)“蔗丰灵”甘蔗高效液肥进行叶面喷施,以清水作为对照。在不同时期观察主要农艺性状及养分吸收特性,最后作统计分析。结果表明:(1)蔗丰灵处理能提高分蘖率和成茎率;(2)蔗丰灵处理可提高叶片中全N、全P及全K含量,能提高甘蔗产量,其增幅为10.5-17.6%;(3)蔗丰灵处理可提高蔗糖分,其增幅为0.33-1.42%,还可降低还原糖含量。
Four sugarcane varieties, i.e. GT 85/8, YT 63/237,GT 11 and GT 15, were employed as the plant materials. The plants were sprayed with 0.2% of Zhefengling, a highly efficient liquid fertilizer, at early tillering stage, and each variety had a water control. The major agronomic characters were investigated. The main results were as follows: (1) Zhengfengling increased the rate of tillering, and produced more millable stalks. It also increased stalk diameter and stalk length. Finally, it increased the yield of cane. (2) Zhefengling increased the contents of N, P, K in the leaf of sugarcane. (3) Zhefengling increased the contents of sucrose in cane and decreased the reducing sugar in juice.
