钾肥不同用量对马铃薯产量及品质的效应  

Effect of Kapplication on yield and quality of the potato

作　　者：殷文[1] 孙春明[1] 马晓燕[1] 徐霞[1] 赵万平[1] 

机构地区：[1]江苏省泰兴市农技推广中心,泰兴225400

出　　处：《土壤肥料》2005年第4期44-47,共4页Soils and Fertilizers

摘　　要：以“克新一号”马铃薯品种为试验材料,研究了不同钾肥用量对马铃薯产量及其品质的影响。结果表明:钾可以促进马铃薯的营养生长,提高生物产量,促进地下块茎膨大,从而提高经济产量和商品率;但过量钾则表现为一定的负效应。适量钾可提高马铃薯淀粉含量,而Vc含量则呈下降趋势。Five quality characteristics of the 14 varieties of spring wheat in different grades of density and fertility have been comprehensively analyzed. The results indicated that fertility is critical factor, the sensitivity of pelshenke velum is higher than that of other quality characters, the sequence of the sensitivity of the quality characters is GMP, crude protein content, wet gluten content, pelshenke velum, sedimentation.

关 键 词：钾肥 产量 品质 效应 

分 类 号：S532[农业科学—作物学]