氮钾肥不同用量对威芋3号马铃薯产量及经济效益的影响  

Effects of Different Amount of Nitrogen and Potassium Fertilization on Yield and Economic Performance of Potato Cultivar Weiyu 3

作　　者：刘藜 肖厚军 周瑞荣 朱艳玲 韦堂灵 孙锐锋 

机构地区：[1]贵州省土壤肥料研究所,贵阳550006 [2]贵州省赫章县林业局,赫章553206 [3]贵州省望谟县林业局,望谟552300

出　　处：《贵州科学》2012年第4期84-87,共4页Guizhou Science

基　　金：贵州省农业科学院重点项目<含Cl-化肥对马铃薯产量及品质影响的研究>;黔农科合(重点)[2007];贵州省重大专项项目<贵州马铃薯产业化关键技术研究示范>黔科合重大专项[2008]6009号

摘　　要：为研究威芋3号马铃薯氮钾肥施用技术,在贵州省威宁县进行氮钾肥效田间试验。结果表明,不同氮钾肥用量对马铃薯的生长,产量和经济效益的影响有所不同。分析表明,马铃薯施用氮钾肥要适宜,过高反而造成产量和效益的下降。该区施用氮钾肥用量为N15kg/667m2、K2O16kg/667m2时效果较好。A field experiment was conducted to study the efficient fertilization technology on potato cultivar Weiyu 3. The results showed that effects were different by application of different amount of nitrogen and potassium. Anal- ysis suggested that applying fertilization must be appropriate and high amount will reduce the yield and perform- ance. The recommended amount of fertilizer in Weining county was N225 kg,/ha and K2 O240 kg/ha respectively for potato cultivar Weiyu 3.

关 键 词：威芋3号 产量 经济效益 

分 类 号：S143.42[农业科学—肥料学] S532[农业科学—农业基础科学]