不同氮磷钾施肥配比对美丽异木棉幼苗生长特性的影响研究  

Effect of Different Ratios of Nitrogen,Phosphorus,and Potassium Fertilizer Application on Seedling Growth of Ceibaspeciosa

作　　者：钱磊 孙苗苗 王伟 胡杏 倪建中 Qian Lei;Sun Miaomiao;Wang Wei;Hu Xing;Ni Jianzhong(Guangzhou Institute of Forestry and Landscape Architecture/Guangzhou Horticultural Plant Germplasm Resource Nursery,Guangzhou 510405,Guangdong,China)

机构地区：[1]广州市林业和园林科学研究院/广州园林植物科技资源圃,广东广州510405

出　　处：《绿色科技》2024年第9期79-83,共5页Journal of Green Science and Technology

基　　金：广东省林业科技创新项目(编号:2019KJCX028)。

摘　　要：以美丽异木棉(Ceiba speciosa)幼苗为试验材料,通过施入不同氮磷钾配比的肥料,对施肥后每个月美丽异木棉的地径、株高、株幅、叶绿素荧光参数和生物量进行测量,得出以下结论:对美丽异木棉幼苗地径生长量影响最大的为T13处理(N4P1K4),单株施肥量为N 3.0 g、P 0.6 g、K 2.0 g,对株高、叶绿素荧光参数和生物量影响最大的均为T16处理(N4P4K1),单株施肥量为N 3.0 g、P 2.4 g、K 0.5 g。综上所述,对美丽异木棉幼苗期生长影响最大的施肥组为T16(N4P4K1)。In order to improve the quality of Ceiba speciosa seedlings,growth performance of seedlings planted under different NPK ratio treatments was studied by measuring ground diameter,height,width,chlorophyll fluorescence parameters and biomass.Results showed that T13(N4P1K4)had the greatest effect on ground diameter with application rate of N3.0g,P0.6g and K2.0g per plant.In addition,T16 had the prime effect on plant height,chlorophyll fluorescence parameters and biomass with application rate of N3.0g,P2.4g and K0.5g per plant.In conclusion,suitable proportion of NPK fertilizer contributed to the growth of Ceiba speciose seedlings and T16 achieved the optimal effect in this study,providing a theoretical basis for scientific fertilization at Ceiba speciosa seedling stage.

关 键 词：美丽异木棉 氮磷钾配比 施肥处理 

分 类 号：S685[农业科学—观赏园艺]