正交法研究芍药生长过程中氮磷钾肥的平衡施用  

Study on Balanced Application of NPK Fertilizer on Growth of Paeonia lactiflora with Orthogonal Design

作　　者：陈暄[1] 王康才[1] 吴美丽[1] 杭悦宇[2] 周义峰[2] 

机构地区：[1]南京农业大学园艺学院,江苏南京210095 [2]江苏省中科院植物研究所,江苏南京210014

出　　处：《中药材》2008年第6期805-807,共3页Journal of Chinese Medicinal Materials

摘　　要：目的:研究氮、磷、钾肥对不同生长年限芍药的影响,探讨平衡施肥。方法:不重复三因素三水平混杂正交试验设计,以芍药根的鲜重、芽头数、分根数作试验指标。结果:氮、磷、钾肥对一年、二年和三年芍药的生长均有一定的影响,而四年生受氮肥的影响较明显。结论:第一年芍药尤其是氮肥和磷肥作用明显;二年和三年生芍药应补充一定量氮、磷、钾肥;四年生的芍药则主要需要增施氮肥。Objective ： To study the level of NPK balanced fertilization on growth of Paeonia lactiflora in different growing periods. Methods ： This experiment was designed as orthogonal test of three factors and three levels. Fresh weight of root, number of bud, number of root division, length of the longest root and diameter of widest root were used as indicators. Results： Nitrogenous, phoshate and potash fertilizer affected the growth of the Paeonia lactiflora from the first to the third year. And the nitrogenous was the main factor during the fourth year. Conclusion： NPK fertilizer, especially N and P fertilizer are needed during the first year of the Paeonia lactiflora. Only the nitrogenous fertilizer is needed in the fourth year.

关 键 词：芍药 氮磷钾 平衡施肥 产量 

分 类 号：R282.2[医药卫生—中药学]