河南农业科学2013，Vol.42Issue(8)：57-61,5.
叶面追肥对马铃薯干物质积累、营养状况及土壤养分的影响
Effect of Foliage Spray on Dry Matter Accumulation,Nutrient Status and Soil Nutrient of Potato
摘要
Abstract
In the present study,potato Hezuo-88 was used to investigate the effects of foliage supplement fertilizers on the dry matter accumulation,nutrient status and soil nutrient,including spraying 0.5 ％ urea,0.3％ KH2PO4 and their combination solution after squaring,all of which were treated by applying equal amount of fertilizer.The results showed that the different foliage fertilizers had different effects on the potato and soil.Spraying 0.5％ urea or 0.5％ urea +0.3％KH2PO4 particularly increased dry matter accumulation and biomass yield of plant,economic output of fresh tuber as well as nitrogen content of leaf,while available N content and available P content in soil markedly decreased.Spraying 0.3％ KH2PO4 obviously increased potassium content in leaf and soil,but nitrogen content,phosphorus content and potassium content in tuber decreased significantly.The yield-increasing effect was better under foliage supplying of nitrogen fertilizer.关键词
马铃薯/叶面追肥/干物质积累/营养状况/土壤养分Key words
potato/ foliage spray/ dry matter accumulation/ nutrient status/ soil nutrient分类
农业科技引用本文复制引用
韦冬萍,韦剑锋,吴炫柯,刘欢雨,熊建文,史丹妮..叶面追肥对马铃薯干物质积累、营养状况及土壤养分的影响[J].河南农业科学,2013,42(8):57-61,5.基金项目
广西自然科学基金项目 (2013GXNSFBA019050) （2013GXNSFBA019050）
广西工学院鹿山学院科学基金项目(院科自1112206) （院科自1112206）
