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随着粮食产量的提高,氮肥用量逐步增加。其中碳铵比重很大。为了提高这一氮素化肥的利用率,我们针对碳铵易挥发的特点和目前使用中存在的主要问题,近几年进行了试验研究,初步摸到了一些行之有效的方法。一、碳铵深施。均在播前深施4寸。与生产上现行的将同量碳铵结合灌水分两次施入相比,结果表明同样施用一百斤碳铵,浅施的增产玉米二百一十四斤,深施的却增产三百零三斤,每斤碳铵深施比浅施
With the increase of grain output, the amount of nitrogen fertilizer gradually increased. Among them, the proportion of ammonium bicarbonate is very large. In order to improve the utilization efficiency of this nitrogen fertilizer, we have carried out experimental research in recent years on the characteristics of volatile ammonium bicarbonate and the main problems in current use, and initially found some effective methods. First, ammonium bicarbonate deep facilities. Apply 4 inches before sowing. Compared with the current production of the same amount of ammonium bicarbonate irrigation applied twice, the results show that the same application of one kilogram of ammonium bicarbonate, shallow application of corn yield increased 214 kilograms, but the implementation of deep-but increased production of 300 Three pounds, per kilogram of ammonium bicarbonate than the shallow facilities