不同植物残体施用对橡胶树根系生长影响研究初报  

Preliminary Research Report on the Effects of Different Plant Residue Application on the Root Growth of Rubber Trees

作　　者：李乐 林清火 刘俊良[2] 贾笑英 李建华[2] 罗微 李智全[2] LI Le;LIN Qinghuo;LIU Junliang;JIA Xiaoying;LI Jianhua;LUO Wei;LI Zhiquan(Key Laboratory of Biology and Genetic Resources of Rubber Tree,Ministry of Agriculture and Rural Affairs/State Key Laboratory Breeding Base of Cultivation&Physiology for Tropical Crops/Danzhou Investigation&Experiment Station of Tropical Crops,Ministry of Agricultureand Rural Affairs,Danzhou 571737,Hainan;Hainan State Farms Academy of Sciences,Haikou 570311,Hainan;Hainan Natural Rubber Quality Test Center,Haikou 570100,Hainan)

机构地区：[1]农业农村部橡胶树生物学与遗传资源利用重点实验室/海南省热带作物栽培生理学重点实验室/农业农村部儋州热带作物科学观测实验站,海南儋州571737 [2]海南省农垦科学院,海南海口570311 [3]海南省天然橡胶质量检验站,海南海口570100

出　　处：《中国热带农业》2021年第4期35-40,共6页China Tropical Agriculture

基　　金：中国热带农业科学院橡胶研究所省部重点实验室/科学观测实验站开放课题“不同有机肥类型对橡胶树生长的影响研究”(RRI-KLOF202007);海南省自然科学基金高层次人才项目“利用不同有机肥改良土壤对橡胶树生长影响研究”(320RC751)。

摘　　要：采用随机区组法布置不同植物残体施用对橡胶树根系生长影响试验,以表土回填为对照,设置橡胶叶、稻草、杂草、甘蔗渣和芒果叶5个处理,观测橡胶树根系的发根、增粗、伸长等指标变化。结果表明:稻草和芒果叶对橡胶树行根增粗的促进作用明显,在诱导营养根发生及总长度上橡胶叶、稻草和芒果叶的促进作用显著;甘蔗渣对行根增粗的促进作用不明显。The effects of applying different plant residues on the root growth of rubber trees by randomized block method were tested.Taking the topsoil backfill as a control,five treatments of the rubber leaves,straw,grass,bagasse and mango leaves were set up to observe the changes of rooting,thickening,elongation and other indicators of the rubber tree root system.The results showed that straw and mango leaves had a significant promoting effect on the thickening of rubber tree roots;and rubber leaves,straw and mango leaves had a significant promoting effect on the induction of vegetative roots and the total length of roots;the promontion effect of bagasse on root thichening was not obvions.

关 键 词：植物残体 橡胶树 根系生长 影响 

分 类 号：S794.1[农业科学—林木遗传育种]