| 宿庆连，黄明翅，陈剑华，周晓云.丹尼斯凤梨“3414”施肥效应试验[J].广东农业科学,2013,40(3):48-50 |
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丹尼斯凤梨“3414”施肥效应试验 |
| Trial of fertilizer effect on Guzmania denise based on the “3414” design |
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| DOI： |
| 中文关键词: 丹尼斯凤梨 “3414”方案 肥效 |
| 英文关键词: Guzmania denise “3414” design fertilizer effect |
| 基金项目:广州市财政农业专项（穗农[2008]44号） |
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| 摘要点击次数: 1558 |
| 全文下载次数: 692 |
| 中文摘要: |
| 为了解满足丹尼斯凤梨生长发育所需氮磷钾的最佳用量，利用“3414”方案分别建立了氮、磷、钾施肥量与植株干株高尧、幅、叶片数的回归方程，结果表明，由一元二次函数导出最大干重、株高、冠幅、叶片数的氮、磷、钾施用量为N 151.82 ~175.7 mg/L、P2O5 22.79~23.38 mg/L、K2O 258.25~298.5 mg/L；由三元二次函数导出最大干重、株高、冠幅、叶片数的氮、磷、钾施用量为N 153.13~216.51 mg/L、P2O5 19.78~28.33 mg/L、K2O 253.28~311.8 mg/；较为适合丹尼斯凤梨生长发育的氮磷钾（N：P2O5：K2O）的比例为1：0.29~0.32：2.00~2.44。 |
| 英文摘要: |
| In order to understand the optimum amount of NPK required of Dennis pineapple growth and development, regression
equation between amount of nitrogen, phosphorus, potassium fertilization and plant dry weight, plant height, crown width, leaf number were established respectively on the experiment of “3414” design. Results showed that the amounts which met maximum dry weight, plant height,crown width and number of leaves that were derived by a single quadratic function on nitrogen, phosphorus, potassium fertilization were N 151.82~175.7 mg/L, P2O5 22.79~23.38 mg/L, K2O 258.25~298.5 mg/L; the amounts which met maximum dry weight, plant height,crown width and number of leaves that were derived by the ternary quadratic function on nitrogen, phosphorus, potassium fertilization were N 151.82~175.7 mg/L, P2O5 22.79~23.38 mg/L, K2O 258.25~298.5 mg/L; the NPK (N, P2O5, K2O) ratio of more suitable for Dennis pineapple growth and development was 1:0.29~0.32:2.00~2.44. |
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