河南农业大学学报2012，Vol.46Issue(5)：526-529,534,5.
氮素形态对早实核桃叶片光合特性和果实品质的影响
Effects of different forms of nitrogen on leaf photosynthetic characteristics and nuts quality of early-fruiting walnut
摘要
Abstract
Early-fruiting walnut (Juglans regia L. ) cultivar ' zhonglin 1' was used as the materials to study the effects of three different nitrogen fertilizers with three levels(350, 700, 1 050 g pure nitrogen each plant) on leaf photosynthetic metabolism and fruit quality. The results showed that; 1) middle -N NH4+ - N treatment (700 g N each plant) sustained a high chlorophyll content level in the whole growth period of early-fruiting walnut trees; 2) compared to urea and NO3~ - N, NH4+ - N fertilizer had a better effect on the photosynthetic characteristics of early-fruiting walnut, and high-N NH4+ - N treatment (1 050 g N each plant) was the best treatment on it; 3) NO3 - N fertilizer and urea increased the walnut yield significantly; 4) NH4+ - N fertilizer improved the kernel ratio of walnut nuts; 5) nuts fat ratio increased with the increasing of nitrogen fertilizer quantity.关键词
早实核桃/氮素形态/光合特性/果实品质/产量Key words
early-fruiting walnut/ nitrogen form/ photosynthetics characteristic / nut quality/ yield分类
农业科技引用本文复制引用
朱超,冀爱青,宁婵娟,杨燕君,刘晓华,吴国良..氮素形态对早实核桃叶片光合特性和果实品质的影响[J].河南农业大学学报,2012,46(5):526-529,534,5.基金项目
河南省重大科技攻关项目(092101110600) （092101110600）
