杨树营养与施肥研究进展.PDFVIP

22 5 Vol. 22 No. 5 2009 10 World Forestry Research Oct2009 * 邓 坦 贾黎明 (, 100083) : 施肥是杨树速生丰产林建设的关键技术在阐述杨树养分特性和养分诊 技术的基础上, 分别从施肥 效应及其影响因素和施肥技术方面综述了 20世纪 50年代以来的国内外杨树施肥研究, 并提出 3点建议:形成 适于不同区域不同土壤类型和不同品种无性系的施肥技术体系; 注重和加强淋溶水肥耦合等施肥机理的研 究; 借鉴农业先进施肥技术, 摸清杨树与土壤的养分供求关系, 实现林业精准施肥 : 杨树, 营养诊 , 施肥技术, 施肥效应 : 725. 5 : A : 1001- 4241( 2009) 05- 0051- 06 Nutritional Characteristics and Fertilization of Poplar Deng Tan Jia L mi ing ( Key Laboratory for ilviculture and Conservation ofM inistry of Education, Beijing Forestry University, Beijing 100083, Ch ina) Abstract: Fertilization is one of the most mi portant techn iques on the cu ltivation of fast- grow ing and h igh- yield poplar plantation. In th is paper, based on elaborating the pop lars nutrient characteristics and nutrition diagnosis techniques, the pop lars fertilization at hom e and abroad since the 1950sw as review ed in 3 aspects, .i e. fertilization effect, affecting factors and fertilization techniques ( fertilizer types, fertilization season and numbers, fertilization amount and fertilizer rotio, etc. ). Moreover, three suggestionsw ere put forw ard for the research: 1) establishing a fertilization techn ique system of pop lar su itable for different regions, different soil types and d ifferent varieties; 2) paying attention to mechanism research on leaching and w ater- fertilizer coup ling; and 3) realizing precision fertiliza tion through utilizing the advanced agricultural fertilization techn iques andmastering the nutrient sup p