喷施宝浓度对油茶营养生长的影响  

Effects of Penshibao concentrations on vegetative growth in Camellia oleifera

作　　者：孙琼[1,2] 郭晓敏[3] 胡冬南[3] 牛德奎[2] 

机构地区：[1]湖南环境生物职业技术学院,湖南衡阳421000 [2]江西农业大学国土资源与环境学院,江西南昌330045 [3]江西农业大学江西省森林培育重点实验室,江西南昌330045

出　　处：《经济林研究》2016年第1期65-70,共6页Non-wood Forest Research

基　　金：国家自然科学基金项目(31260194);广西北海喷施宝股份有限公司项目;国际植物营养研究所(IPNI)项目(Jiangxi-29)

摘　　要：为了确定喷施宝在油茶中应用的适宜浓度,分别以‘长林4号’和‘长林40号’为试验对象,设计了不同浓度的喷施宝处理,就不同浓度的喷施宝处理对油茶树高、地径增量、冠幅、春梢、叶面积以及叶片叶绿度等营养生长指标的影响情况进行了试验、观测与分析。试验结果表明:施用喷施宝叶面肥能大幅度提高油茶树高生长量、地径增量,增大冠幅面积、叶面积,促进春梢生长,有效提高叶片叶绿素含量;且两个品系均以低浓度喷施宝的肥效为最佳。喷施宝浓度为0.33 mg/kg时,‘长林4号’试验树的树高、地径增量、冠幅、春梢长度、叶面积、叶绿度值比对照树分别高10.7%、10.7%、25.4%、1.4%、13.7%、1.9%;‘长林40号’试验树的树高、冠幅、春梢长度、春梢直径、叶面积、叶绿度值比对照树分别高8.2%、24.1%、9.4%、5.2%、19.0%、12.2%。In order to determine the appropriate concentration of Penshibao for Camellia oleifera, taking ‘Changlin No.4＇ and ‘Changlin No.40＇ as materials, effects of Penshibao concentrations on some vegetative growth indexes in C. oleifera trees were observed and analyzed, including height, ground diameter increment, crown, spring shoot, leaf area, SPAD value, and so on. The results showed that, spraying Penshibao could significantly improve height increment, ground diameter increment, increase areas of crowns and leaves, promote growth of spring shoots, and effectively increase chlorophyll content in leaves. The optimal concentration for the strains was lower concentration. In the spraying 0.33 mg/kg Penshibao treatment, height, ground diameter increment, crown, spring shoot length, leaf area, and SPAD value of ‘Changlin No.4＇ were respectively 10.7%, 10.7%, 25.4%, 1.4%, 13.7%, and 1.9% higher than those of the control, and height, crown, spring shoot length, spring shoot diameter, leaf area, and SPAD value of ‘Changlin No.40＇were respectively 8.2%, 24.1%, 9.4%, 5.2%, 19.0%, 12.2% higher than those of the control.

关 键 词：喷施宝 油茶 营养生长 

分 类 号：S606.2[农业科学—园艺学] S794.4