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Email: 1239574337@qq.com
梁海波(1992—),女,硕士,农艺师,主要从事农业资源与环境等的推广与研究工作;1239574337@qq.com
为考察控释肥掺混比例对香蕉产量及品质的影响,以不施氮肥为对照,开展了控释肥、普通尿素及钾肥不同比例掺混的3年定位田间小区试验。结果表明:控释肥掺混比例为50%时的效果较好,可促进香蕉提早抽蕾,提高香蕉单株果指数、果指长、果指粗、单果质量,与施用普通肥料处理相比,3年平均增产率为10.91%;通过回归分析推算,香蕉获得最高产量的控释肥料掺混比例为68.2%;不施氮肥显著影响香蕉的果实品质,缺氮处理的香蕉维生素C、可溶性糖和还原糖含量均有一定程度的下降,在香蕉种植过程中应注意氮肥的施用。
In order to investigate the effect of the blending ratio of controlled-release fertilizers on the yield and quality of banana, a 3-year field plot experiment of controlled-release fertilizers, common urea and potassium fertilizer mixed with different ratios is carried out with no nitrogen fertilizer as the control. The results show that the effect of controlled-release fertilizers is better when the blending ratio is 50%, which can promote the early budding of banana, improve the number of fruit finger per plant, length of fruit finger, diameter of fruit finger, and single fruit weight of banana, and the average yield increase rate in three years is 10.91% compared with the treatment of applying common fertilizer. According to regression analysis, the blending ratio of controlled-release fertilizers for banana to obtain the highest yield is 68.2%. The quality of banana fruit is significantly affected by the deprivation of nitrogen fertilizer, which result in the declining content of vitamin C, soluble sugar and reducing sugar among the nitrogen deficiency treatment group. Therefore, attention should be paid to the application of nitrogen fertilizer during banana planting.
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