不同施肥处理对牛角瓜营养生长及产量的影响.PDF

第33 卷 第2 期 经 济 林 研 究 Vol. 33 No.2 2015 年6 月 Nonwood Forest Research Jun. 2015 Doi:10.14067/j .cnki.1003-8981.2015.02.003 http : // 不同施肥处理对牛角瓜营养生长和产量的影响 袁晓慧，刘惠民，王连春，刘 鹏，叶维雁 （西南林业大学，云南 昆明 650224 ） 摘 要：为给牛角瓜经营技术的研究提供参考依据，以牛角瓜为试验材料，在云南省元江县的干热河谷地区， 就氮、磷、钾肥的不同用量水平对牛角瓜株高、地径、叶片数和冠幅生长等生理指标的影响情况开展了“34 14 ” 的施肥试验。结果表明：施肥处理对其株高的影响极显著；对其东西冠幅的影响，由不显著变为显著，最后变 为极显著；对南北冠幅的影响，由极显著变为显著；对地径、萌蘖和叶片数的影响均不显著；对花序数的影响， 由不显著变为显著，最后变为不显著。氮、磷、钾肥对牛角瓜产量的影响均达极显著水平。在目前的土壤肥力 条件下，配施尿素65.22 g/株、过磷酸钙37.50 g/ 株、硫酸钾24.00 g/ 株所得牛角瓜的产量最大。 关键词：牛角瓜；施肥；氮、磷、钾肥； “34 14 ”试验 中图分类号：S606 ＋.2 ；S147.2 文献标志码：A 文章编号：1003—8981(2015)02—0014—06 Effect of different fertilization treatments on vegetative growth and yield in Calotropis gigantea YUAN Xiao-hui, LIU Hui-min, WANG Lian-chun, LIU Peng, YE Wei-yan (Southwest Forestry University, Kunming 650224, Yunnan, China) Abstract: In order to provide a reference for researching management technology in Calotropis gigantea, taking C. gigantea as materials, effects of different application levels of N, P and K fertilizers on tree height, ground diameter, leaf number and crown growth were researched by “34 14 ” fertilizer experiment at dry-hot valley areas of Yuanj iang County, Yunnan Province. The results showed that the fertilization treatments had very significant effects on tree height, and had no significant effects on ground diameter, tillers and leaf number. Effects of the treatments on crown breadth (east-west direction) were from insignificant to significant, finally to v