贵州油茶开花结实期的叶片营养诊断  

Nutrition Diagnosis of Camellia oleifera Leaves at Flowering and Fruiting Stage in Guizhou

作　　者：朱亚艳 姚渊 李芳 王港 霍达 徐嘉娟 王进 许杰 张明刚 ZHU Yayan;YAO Yuan;LI Fang;WANG Gang;HUO Da;XU Jiajuan;WANG Jin;XU Jie;ZHANG Minggang(Guizhou Academy of Forestry,Guiyang,Guizhou 550005;Liping State-owned Wuxiajiang Forest Farm,Liping,Guizhou 557300,China)

机构地区：[1]贵州省林业科学研究院,贵州贵阳550005 [2]黎平县国有乌下江林场,贵州黎平557300

出　　处：《贵州农业科学》2021年第10期8-13,共6页Guizhou Agricultural Sciences

基　　金：贵州省科技厅科研机构服务企业行动计划项目“贵州油茶团队服务企业行动计划”[黔科合服企(2018)4003];贵州省特色林业产业项目“贵州本地油茶良种选育”(特林研2020-15);贵州省科技厅科技平台及人才团队计划项目“贵州省油茶工程技术研究中心”[黔科合平台人才(2018)5252],“油茶果皮厚度控制分子机理研究”[黔科合平台人才(2019)5643];贵州省科技厅科技支撑计划项目“贵州高原山地威宁短柱油茶优良无性系选育”[黔科合支撑(2020)2115];贵州省林业局青年基金项目“贵州油茶主产区栽植适宜密度调查研究”[黔林科合J字(2019)01];贵州省林业局科研项目“贵州引进油茶良种适应性调查与评价”;贵州省科技厅科技成果应用及产业化计划项目“黔油1-4号油茶良种扩繁与推广示范”[黔科合成果(2017)4133]。

摘　　要：【目的】探明油茶开花结实期叶片营养状况,为贵州油茶合理施肥提供理论指导。【方法】以贵州油茶主产区开花结实期叶片为研究对象,测定油茶叶片中的N、P、K、Ca、Mg、Zn、Fe及Mn 8种营养成分含量,利用DRIS营养诊断分析油茶需肥次序,建立油茶开花结实期叶片DRIS营养诊断体系。【结果】贵州省油茶开花结实期需肥次序为N>Mn>P>Mg>Fe>Ca>Zn>K;建立油茶开花结实期叶片DRIS营养诊断体系即明确油茶开花结实期叶片各营养元素含量的适宜范围:N 12.417~18.057 g/kg,P 0.586~1.307 g/kg,K 4.679~8.043 g/kg,Ca 6.621~8.464 g/kg,Mg 1.433~2.755 g/kg,Fe 0.183~0.361 g/kg,Mn 0.166~2.307 g/kg,Zn 15.453~28.428 mg/kg。【结论】贵州省油茶开花结实期叶片的N、P、Mg和Mn营养成分相对缺乏,K、Ca、Zn和Fe营养成分相对充足。【Objective】To provide the theoretical guidance for rational fertilization of Guizhou Camellia oleifera,the nutrition status of C.oleifera leaves at flowering and fruiting stage is explored.【Method】C.oleifera leaves at flowering and fruiting stage in Guizhou C.oleifera major growing area are used as the research objects to determine the eight nutrient content(N,P,K,Ca,Mg,Zn,Fe and Mn)in C.oleifera leaves,and fertilizer demanding sequence for C.oleifera is analyzed through DRIS nutrition diagnosis,and then the DRIS nutrition diagnosis system for C.oleifera leaves at flowering and fruiting stage is established.【Result】The fertilizer demanding sequence of Guizhou C.oleifera at flowering and fruiting stage follows N>Mn>P>Mg>Fe>Ca>Zn>K;The establishment of DRIS nutrition diagnosis system for C.oleifera leaves at flowering and fruiting stage which means the clearance of the suitable range of various nutrient element content in C.oleifera leaves at flowering and fruiting stage,that is,N 12.417-18.057 g/kg,P 0.586-1.307 g/kg,K 4.679-8.043 g/kg,Ca 6.621-8.464 g/kg,Mg 1.433-2.755 g/kg,Fe 0.183-0.361 g/kg,Mn 0.166-2.307 g/kg and Zn 15.453-28.428 mg/kg.【Conclusion】N,P,Mg and Mn in C.oleifera leaves at flowering and fruiting stage are relatively deficient,and K,Ca,Zn and Fe are relatively abundant.

关 键 词：油茶 开花结实期 DRIS 营养诊断 贵州 

分 类 号：S794.4[农业科学—林木遗传育种]