Translations:Controlled-release fertilizer/7/en

Mechanisms of release

Crotonylidene diurea is also used as a CRF.

Isobutylidenediurea (IBDU) is yet another CRF.

The rate of the release is determined by various main factors: (i) the low solubility of the compounds in the soil moisture, (ii) the breakdown of protective coating applied to fertilizer pellets, and (iii) the conversion of the chemicals into ammonia or similarly effective plant nutrient.