Under normal pressure and room temperature, urea humate is manufactured by coating urea with coal humus acid, with water and a few additives as its binder, also its agricultural effect is examined.

介绍用水和少量添加剂作介质，在常温常压下，煤炭腐植酸与尿素直接进行络合反应包裹生产腐植酸尿素的工艺及特点，并对其农业应用效果进行了讨论。

youdao