旱地玉米碳酸氢铵秋施效应及其增产机制

Effect of Ammonium Bicarbonate on Spring Mealie in Arid Land Yield and Its Yield increasing Mechanism

针对旱地玉米春季干旱难捉全苗和碳铵播前施利用率低等问题，进行了碳铵秋施试验。结果表明，碳铵秋施可明显地改善上述情况，增加玉米产量和提高经济效益。并就其增产机理进行了分析。

On face of spring droughts and less rainfall,ammonium bicarbonate lose,it made full stand of the corn shoots difficult.The experiment was carried out on the experimental farm about autumn and spring application ammonium bicarbonate.The result showed that fall application of ammonium bicarbonate could resistant drought and ensure a full stand,and increase grain yields and economic income.The mechanism of increasing yield was also studied.