高吸水性树脂对玉米提高碳酸氢铵利用率的研究  

Studies of Increasing Nitrogen Use Efficiency of Ammonium Bicarbonate in Maize by Applying Super Absorbent Polymers

作　　者：何金明[1] 陈振德[1] 李祥云[1] 陈健美[1] 

机构地区：[1]青岛市农业科学研究院,山东青岛266100

出　　处：《山东农业科学》2008年第1期80-83,共4页Shandong Agricultural Sciences

基　　金：青岛市科技攻关项目(9895G0207)

摘　　要：田间小区试验结果表明，在碳酸氢铵肥料中配合施用适量高吸水性树脂，明显促进玉米植株对氮、磷、钾的吸收。在试验添加高吸水性树脂条件下，增产4．3％～10．6％；在添加高吸水性树脂为碳酸氢铵用量2．5％～7．5％范围内，氮肥利用率提高2．7～8．3个百分点，其中以高吸水性树脂用量5％时，产量、施氮效益和氮肥利用率最高。The results showed that the super absorbent polymers added in ammonium bicarbonate could obviously promote the absorption of nitrogen, phosphorus oxide and potassium oxide by maize plants. Simultaneously, the yield of maize increased by 4.3% - 10.6% with 2.5% - 10% super absorbent polymers applieated; The nitrogen use efficiency increased 2.7% - 8.3% with applying 2.5% -7.5% super absorbent pol- ymers, especially when 5% super absorbent polymers was added into ammonium bicarbonate, the maize yield, N beneficial result and N use efficiency were the highest.

关 键 词：高吸水性树脂 玉米 氮肥利用率 碳酸氢铵 养分吸收分配 产量 

分 类 号：S513.062[农业科学—作物学]