该方法仅适用于含有大量直径小于0.5mm颗粒的干燥肥料。其原理是将肥料从指定的灌装装置倒入指定的已知体积的量筒中，并称量量筒中的内容物。如果肥料在运输或储存过程中吸收了水分，有必要在环境室内干燥。

The method is applicable to fertilizers, dry only, which contain a large proportion of particles of diameters less than 0,5 mm. Its principle is pouring the fertilizer from a specified filling device into a specified measuring cylinder of known volume and weighing the contents of the cylinder. If the fertilizer has absorbed moisture during transport or storage, it is necessary to dry it in an environmental chamber.