增铵营养对小麦氮及矿质营养含量和积累的影响  

Effects of enhanced ammonium nutrition on content and accumulation of nitrogen and mineral nutrients in wheat plant.

作　　者：戴廷波[1] 曹卫星[1] 孙传范[1] 

机构地区：[1]南京农业大学农业部作物生长调控重点开放实验室,南京210095

出　　处：《应用生态学报》2002年第3期382-384,共3页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金资助项目 (3 9670 42 8)

摘　　要：The hydroponics experiment was conducted to study the nutrition basis for growth promotion of wheat by Enhanced Ammonium Nutrition(EAN). Compared with fertilizing NO - 3 alone,EAN significantly increased N concentration and accumulation in leaves,sheaths,and whole plant,but there were not significant effects on roots. EAN had no significant effects on concentration of P and K,but decreased that of Ca and Mg in whole plant. EAN increased accumulation of P,K,and Ca in whole plant,and decreased that of Mg,whereas single NH\++\-4 decreased accumulation of all mineral nutrients. EAN had different effects on accumulation of mineral nutrients in different genotypes. Compared with fertilizing NO\+-\-3 alone,EAN increased accumulation of P,K,and Ca of YM158 and LZ953. For the accumulation of JDM,there was little responsive to EAN. These results indicated that EAN promoted N absorption and increased accumulation of N,P,K,and Ca in whole plant.The hydroponics experiment was conducted to study the nutrition basis for growth promotion of wheat by Enhanced Ammonium Nutrition(EAN). Compared with fertilizing NO - 3 alone,EAN significantly increased N concentration and accumulation in leaves,sheaths,and whole plant,but there were not significant effects on roots. EAN had no significant effects on concentration of P and K,but decreased that of Ca and Mg in whole plant. EAN increased accumulation of P,K,and Ca in whole plant,and decreased that of Mg,whereas single NH\++\-4 decreased accumulation of all mineral nutrients. EAN had different effects on accumulation of mineral nutrients in different genotypes. Compared with fertilizing NO\+-\-3 alone,EAN increased accumulation of P,K,and Ca of YM158 and LZ953. For the accumulation of JDM,there was little responsive to EAN. These results indicated that EAN promoted N absorption and increased accumulation of N,P,K,and Ca in whole plant.

关 键 词：小麦 氮营养 矿质营养 矿质积累 增胺营养 

分 类 号：S512.1[农业科学—作物学]