为了探索长效碳铵在不同栽培条件下的施用技术，1997年我们安排了94亩直播甜菜长效碳铰一次性深施示范。亩施长效碳铵50公斤，其它田间管理与当地普通甜菜栽培技术相同，收获时平均亩产2．6吨，总产244．4吨，比追施等氮量尿素甜菜亩产2．38吨增加0．22吨，增产9．24％，收到了 In order to explore the application of long-acting ammonium bicarbonate in different cultivation conditions, in 1997 we arranged 94 acres of live beet long-lasting carbon hinge one-time deep demonstration. Mushi Shi Chang ammonium bicarbonate 50 kg, the other field management and local common beet cultivation techniques are the same harvest average 2.6 tons per mu, the total output of 244.4 tons, than the topdressing of nitrogen urea beet 2.38 tons per mu increase 0.22 tons, an increase of 9.24%, received