合理施肥,是小麦“高稳低”的一个重要问题。三年来,据我省各地不同产量水平麦田的统计,化肥占总费用的百分之七十到八十。因此,合理施用化肥,是提高小麦产量,降低生产成本的关键措施。碳酸氢铵(简称碳铵)是我省各地生产的主要氮肥品种。碳铵含有铵和碳酸;都能被作物吸收利用,不残留对土壤和作物生长的有害物质。但是碳铵性质很不稳定,在接触空气的 Rational fertilization is an important issue for wheat “high and stable low.” In the past three years, according to the statistics of wheat fields of different yield levels throughout our province, the fertilizer accounts for 70-80% of the total cost. Therefore, the rational use of fertilizers is the key measure to increase wheat yield and reduce production cost. Ammonium bicarbonate (referred to as ammonium bicarbonate) is the main nitrogen fertilizer produced throughout the province. Ammonium bicarbonate contains ammonium and carbonic acid; can be absorbed by the crop, leaving no harmful substances on the soil and crop growth. However, the ammonium bicarbonate is very unstable in nature and in contact with air