柑桔配施氮、磷、钾肥效应研究初报  

Effect of NPK Combined Fertilization on Citrus

作　　者：王成秋[1] 魏朝富[1] 杨剑虹[1] 李联铁[1] 谢德体[1] 舒正义[1] 廖东波[2] 谢锦辉[2] Sam Portch 

机构地区：[1]西南农业大学资源环境学院 [2]四川省农科院土肥所 [3]Putash and Phosphate Institute of Canada

出　　处：《中国南方果树》1996年第1期3-6,共4页South China Fruits

摘　　要：本试验研究了在同一施氮水平下，不同水平磷、钾配施及施用不同种类钾肥对柑桔营养、产量及品质的效应。结果表明，紫色黄泥土锦橙园采用适当氮、磷、钾肥配合施用对提高单产及改善果实品质具有明显作用，以株施Ｎ４６０９、Ｐ_２Ｏ_４００ｇ、Ｋ_Ｏ５６０ｇ效果最佳，经济效益也最大。在一定范围内，叶片中的磷、钾养分含量都随磷、钾化肥用量的增加而提高。The effect of application of difrerent amounts of P and K(K2SO4 or KCl)in combi-nation with the same level of N on the nutrition,yield and quality of Citrus was studied.Re-sults showed that the yield and quality of Jincheng(Sweet orange)are evidently improvedthrough adequate combined fertilization of NPK on purple silty loessial soil.The best effectand the maximum profit were obtained as each plant was applied with 460g N,400g P2O5and560g K2O. To some,extent,the concentration of P and K in leaf is increased with increasingthe amounts of P and K application.

关 键 词：柑桔类果树 锦橙 氮肥 磷肥 钾肥 配方施肥 

分 类 号：S666.406.2[农业科学—果树学]