南方农业学报2012，Vol.43Issue(12)：1997-2000,4.DOI:10.3969/j:issn.2095-1191.2012.12.1997
叶面肥对油茶幼苗生长及养分吸收的影响
Effect of different foliar fertilizer ratios on the growth and nutrient absorption of camellia seedling
摘要
Abstract
[Objective]This research studied the effects of different fertilizer proportions on camellia seedling growth and nutrient absorption in order to provide reference for the development of special camellia seedlings foliar fertilizer. [Method]Using nutritional-cup grafted camellia seedlings as research subject, under orthogonal test, 9 different foliar fertilizer concentration treatments with various NPK ratios application and the water control treatment were spayed onto camellia leaves during the seedling stage to determine the seedling growth indexes and the nutrient element contents in camellia roots, stems, and leaves. [Result]The best NPK fertilizer ratio for the promotional growth of camellia seedlings was 11-13-4, and the optimal treatment spaying concentration was at 2%, which reached significant difference compared with other treatments. After foliage fertilizer application, the N, P, and K nutrition contents in stems and leaves greatly improved; the nutrient requirements of camellia seedlings were arranged in the order of N>K>P. By spraying foliar fertilizer, the requirements for trace elements were effectively complemented in camellia seedlings. [Conclusion]Suitable NPK composition and foliar fertilizer spraying concentrations could promote the growth of camellia seedlings and enhance plant nutrient absorption and usage efficiency.关键词
油茶/叶面肥/NPK配比/喷施浓度/生长指标/营养吸收Key words
camellia/ foliar fertilizer/ NPK composition/ spraying concentration/ growth index/ nutrient absorption分类
农业科技引用本文复制引用
何应会,曹继钊,唐健,覃其云,宋贤冲,农必昌..叶面肥对油茶幼苗生长及养分吸收的影响[J].南方农业学报,2012,43(12):1997-2000,4.基金项目
"十一五"广西林业科技项目(桂林科字[2010]第2号) （桂林科字[2010]第2号）
广西科学研究与技术开发计划项目(桂科攻1123004-2B) （桂科攻1123004-2B）
