绿叶黄花芭蕉芋的肥效试验  

Studies on Fertilizer Efficiency of Canna edulis with Green Leaves and Yellow Flowers

作　　者：欧珍贵[1] 罗亚红[1] 周正邦[1] 张爱玉 

机构地区：[1]贵州省亚热带作物研究所,贵州兴义562400 [2]黔西南州农业局,贵州兴义562400

出　　处：《贵州农业科学》2011年第3期87-90,共4页Guizhou Agricultural Sciences

基　　金：贵州省科技支撑计划项目"芭蕉芋品种资源收集选优及高效栽培技术研究"[黔科合NY字(2008)3057];贵州生物质能源植物研发创新能力建设项目[黔科合院所创能(2010)4007]

摘　　要：为构建芭蕉芋施肥模型和配方施肥提供依据,进行了芭蕉芋"3414"田间肥效试验。结果表明:施肥有利于植株生长,可增加分蘖,提高产量和淀粉含量,对根重影响较小;高氮有利于植株生长,不利于淀粉含量的增加,磷钾有利于产量和淀粉含量的提高。施肥模型为y=37301.6-19.6x1+125.1x2+78.9x3-0.07x21-0.80x22-0.17x23+0.24x1x2+0.20x1x3+0.05x2x3。贵州芭蕉芋主产区施肥要适量增施氮肥,补磷补钾,建议芭蕉芋最佳施肥量为N 360 kg/hm2、P 120.7 kg/hm2、K 315 kg/hm2。A ＂3414＂ field experiment of Canna edulis was carried out to build a fertilization model and provide scientific basis for formulated fertilization.The results showed that fertilizing is beneficial to promote plant growth,increase the number of tillering,yield and starch content,but has little effect on root weight.High fertilizing amount of nitrogen is beneficial for plant growth but not for starch content increase,P and K fertilizer are beneficial for yield and starch content increase.The fertilization model is y=37 301.6-19.6x1＋125.1x2＋78.9x3-0.07x21-0.80x22-0.17x23 ＋0.24x1x2＋0.20x1x3＋0.05x2x3.It is needed to increase N fertilizing amount and add P and K fertilizing amount in the major producing area of Canna edulis.The optimum fertilizing amount of N,P and K fertilizer were 360 kg/hm2,120.7 kg/hm2 and 315 kg/hm2,respectively.

关 键 词：芭蕉芋 施肥 施肥模型 

分 类 号：S147.5[农业科学—肥料学]