截干和施肥对寒害后牛角瓜恢复生长的影响  

Effects of Pruning and Fertilization on Recovery Growth of Calotropis gigantea after Freezing Injury

作　　者：赵志珩[1] 廖健明[1] 陈金艳[1] 曾祥艳[1] 黄晓露[1] Zhao Zhiheng;Liao Jianming;Chen Jinyan;Zeng Xiangyan;Huang Xiaolu(Guangxi Forestry Research Institute,Guangxi Key Laboratory of Special Non-wood Forest Cultivation&Utilization,Nanning,Guangxi 530002,China)

机构地区：[1]广西壮族自治区林业科学研究院,广西特色经济林培育与利用重点实验室,广西南宁530002

出　　处：《广西林业科学》2020年第2期204-211,共8页Guangxi Forestry Science

基　　金：广西科学研究与技术开发计划项目(桂科攻15248003-16)。

摘　　要：以牛角瓜(Calotropis gigantea)标准木为试材,采用完全随机区组试验,分析截干和施肥对寒害后牛角瓜植株生长修复的影响,确定最佳截干和施肥方案。结果表明,试验30天时,施肥对牛角瓜生长的影响相对较大;试验120天时,不截干处理抽枝较多,截干处理抽梢更长、更粗;试验240天时,截干处理抽梢的长度及粗度皆优于不截干处理,施肥对牛角瓜生长性状的影响不明显。极差分析表明,截干程度对牛角瓜的生长发育影响较大,施肥影响不显著,恢复效果最优的两个组合为A3B3(截干60 cm+施肥100 g)和A1B5(截干0 cm+施肥200 g)。Taking standard woods of Calotropis gigantea as test materials and using complete randomized block experiment,effects of pruning and fertilization on recovery growth of C.gigantea after freezing injury were analyzed and the best schemes of pruning and fertilization was determined.Results showed that fertilization had relatively greater effect on growth of C.gigantea after 30 days of experiment.After 120 days of experiment,there were more shoots in treatments without pruning,and shoots were longer and thicker in pruning treatments.After 240 days of experiment,length and thickness of shoots were better in pruning treatments than those in treatments without pruning.By range analysis,pruning had greater effects on growth of C.gigantea after freezing injury,and fertilization had no significant effect.Two treatments with the best effect were A3B3(pruning 60 cm+fertilization 100 g)and A1B5(pruning 0 cm+fertilization 200 g).

关 键 词：截干与施肥 完全随机区组试验 牛角瓜 寒害 

分 类 号：S567.19[农业科学—中草药栽培]