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为了提高碳铵的肥效,国内不少单位进行了研究。如福建、上海等单位,在改进碳铵的施用技术方面作了不少工作。我省自1971年以來,研究和推广碳铵球肥深施和耖田深施取得了显著的增产效果。但是,采用球肥深施工效低,耗费劳力多,劳动
In order to improve the efficiency of ammonium bicarbonate, many domestic units conducted a study. Such as Fujian, Shanghai and other units, in improving the application of ammonium bicarbonate technology has done a lot of work. Since 1971 in our province, research and promotion of ammonium bicarbonate fertilizer deep application and deep Tian applied to obtain a significant increase in yield. However, the use of ball deep construction efficiency is low, labor-intensive and labor-intensive