【作者】 吴根松； 傅玉兰； 曹勇；

【Author】 WU Gen-song FU Yu-lan CAO Yong (College of Foresty and Garden,Anhui Agricultural University,Hefei 230036)

【机构】 安徽农业大学林学与园林学院；

【摘要】 通过正交试验设计,研究氮、磷、钾三要素的不同浓度配比对大花蕙兰营养生长的影响。试验结果表明:N 肥对大花蕙兰叶面积增量、假鳞茎的直径、叶片长度的影响达到极显著差异,对假鳞茎增量也达到显著差异;同时 K 肥对叶面积增量、叶片长度的影响达到极显著差异;但 P 肥对所有生长指标均未达到显著差异。最佳的 N、P、K 组合是 N3P2K3,即 N:P₂O₅:K₂O=2.18:1:2.46。更多还原

【Abstract】 Effects of NPK nutrients on vegetative growth of Cymbidium hybridum were studied with an orthogonal experimental design.The results indicate:effect of N on increment of the leaf,the development of the pseudobulb and the length of leaf was the most significant It was also significant on increment of the pseudobulb.Effect of K on increment of the leaf,the length of leaf was the most signifieant.But all character of the plant growth performance showed effect of P was not significant.The opti- mum fertilization level of N,P,K was N₃P₂K₃,i,e.N:P:K=2.18:1:2.46.更多还原