引言在印度旁遮普邦已发现缺乏氮(Bakshi等,1970)、锌(kanwar等,1962;1960)是柑桔正常生长和产量的限制因素。氮对柑桔生长参数、产量和品质的效益也有不少报导,同样,不少人也曾观测到锌的良好作用。鉴于有关施用氮、锌的单因素效应及其交瓦效应的报导有限,本试验旨在研究这些效应对哈姆林甜橙产量、品质和叶片成份的影响。 INTRODUCTION Lack of nitrogen (Bakshi et al., 1970) and zinc (kanwar et al., 1962; 1960) have been found in Punjab, India, as a limiting factor for the normal growth and yield of citrus. Nitrogen on the growth parameters of oranges, yield and quality benefits are also many reports, the same, many people have also observed the good role of zinc. In view of the limited coverage of the single factor effects of nitrogen and zinc utilization and their effects, the aim of this study was to investigate the effects of these effects on the yield, quality and leaf composition of Hamlin.