How to quickly determine the quality of organic fertilizer?

1. When the temperature inside the organic fertilizer drops to or slightly above the ambient temperature, 

it indicates that most of the substances have stabilized, the organic matter has been fully decomposed, and can be stored and applied.

2. Nose odor, the smell of organic fertilizer depends on the degree of humification, 

and the completed compost often falls between a faint steaming smell and a carrion smell, with almost no odor.

3. Observing, the overall appearance of compost gradually turns into dark brown or dark gray. 

At the same time, during the process of degradation, wear, and soaking, the particles of compost will become smaller, 

and the overall texture will become loose and brittle.