文献类型：期刊文献

英文题名：Effects of calcium, boron and nitrogen fertilization on the growth of teak (Tectona grandis) seedlings and chemical property of acidic soil substrate

作者：Zhou, Zaizhi[1] Liang, Kunnan[1] Xu, Daping[1] Zhang, Yuchen[1] Huang, Guihua[1] Ma, Huaming[1]

第一作者：周再知

通信作者：Zhou, ZZ[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China

年份：2012

卷号：43

期号：2

起止页码：231-243

外文期刊名：NEW FORESTS

收录：;EI(收录号：20120614742830);Scopus(收录号：2-s2.0-84856433623);WOS:【SCI-EXPANDED(收录号:WOS:000300081900008)】；

基金：This study was financially supported by the Teak Cultivation Project of Chinese National Forestry Administration (2006BAD24B0901) and Teak Clone Extension and Demonstration Project in Guizhou Province (2010GB24320625). The authors were greatly indebted to Prof. Zhong Chonglu, Research Institute of Tropical Forestry, Chinese Academy Forestry, and Prof. Bernard Dell, Murdoch University, Australia for their valuable comments on the draft manuscript.

语种：英文

外文关键词：Tectona grandis; Seedling; Acidic lateritic red soil; Quicklime; Fertilizer response

摘要：Many teak plantations are established on acidic soils with low nutrient availability. There is also poor documentation of nutrient budgets for teak, therefore, a pot experiment with optimal hybrid regression design (Roquemore R311A) was implemented with calcium, boron and nitrogen treatments with teak seedlings (Tectona grandis L.f.) planted in acidic lateritic red soil substrate. Seedling growth, biomass production and root development, and soil pH, and exchangeable Ca and Al concentration were measured. Plant height, root collar diameter, biomass of leaves, stems and roots, root volume, taproot length, number of lateral roots of teak seedlings were significantly and positively correlated with soil exchangeable Ca, pH and Ca/Al molar ratio, and negatively correlated with exchangeable Al. All growth traits were significantly affected by calcium, nitrogen and their interaction, but B fertilizer and other interactions had insignificant effects. To effectively cultivate teak seedlings in acidic soil substrates, 1.68 g kg(-1) quicklime (CaO) and 0.65 g kg(-1) urea was suggested to be added to neutralize soil acidity, and enhance soil exchangeable Ca content and Ca/Al molar ratio. Urea should not be added without quicklime.