A method is disclosed for the manufacture of a homogeneous, solid, particulate, urea-based composition comprising urea and an additive in a urea production plant comprising at least an evaporator section and a particulation section, further comprising one or more of a mixing section, an effluent gas treatment section and a scrubber solution storage section, comprising the steps of:



(i) concentrating a urea melt of about 80 weight % to about 95 to 99 weight % of urea;
(ii) particulating a urea or urea-based melt into a urea or urea-based composition;
(iii) mixing the urea melt of about 95 to 99 weight % with other fertilizer components to produce a urea-based melt;
(iv) treating the effluent gas from the particulation section comprising urea-based dust particles and ammonia gas with water to produce a scrubber solution; and
(v) storing the scrubber solution from the effluent gas treatment section.