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为了减少水田中施用碳酸氢铵(简称碳铵)的养分损失,提高肥料利用率,用机械方法将碳铵压制成粒状肥料,便于深施入土,使铵被土壤吸附,以减少氮素随水流失和反硝化脱氮损失,是提高肥效与解决水田深施的途径。1977年在早稻、杂交稻、双季后作稻上分别进行了碳铵粒肥与普通碳铵肥效比较试验,获得了显著的增产效果。
In order to reduce the nutrient loss of ammonium bicarbonate (referred to as ammonium bicarbonate) and improve the fertilizer utilization in paddy fields, ammonium bicarbonate is mechanically pressed into granular fertilizers so as to be deeply applied to the soil and ammonium is adsorbed by the soil to reduce nitrogen Loss of water and denitrification denitrification losses, is to improve fertilizer efficiency and solve the paddy fields deep approach. In 1977 in early rice, hybrid rice, rice after two seasons respectively, ammonium carbonate fertilizer and ordinary ammonium bicarbonate fertilizer efficiency comparison test, access to a significant increase in yield.