碳酸氢铵粒肥(以下简称碳铵粒肥)深施试验,在国内已进行十年之久。先后有十余个省、市的几十个单位研究了碳铵粒肥在不同土壤上对水稻、小麦、玉米等多种作物的增产作用。各地研究结果表明:碳铵粒肥深施与碳铵粉肥习惯用法相比,在满足水稻高产需肥量下,可以节省1/3的肥料;在同等用量下,粒肥比粉肥增产10—20%,每斤粒肥比粉肥增产稻谷1— Ammonium bicarbonate fertilizer (hereinafter referred to as ammonium carbonate fertilizer) deep test, in China for ten years. There have been more than ten provinces, cities dozens of units of ammonium bicarbonate fertilizer in different soil on rice, wheat, corn and other crops increased production. The results of the research all over the world showed that compared with the conventional ammonium bicarbonate fertilizer, the application of ammonium bicarbonate fertilizer can save 1/3 of the fertilizer when it meets the requirement of high yield of rice. Under the same dosage, the yield of granulation fertilizer is 10-20 %, Per kilogram of grain fertilizer than fertilizer increased rice 1-