The production of marketable rose srems was higher in the tests using nitrified and anaerobic effluent than those
Using either fertilized or unfertilizad water The use of nitrified effluent expanded the production by 31.8 %
The gain in productivity can also be coupled with the economic gain; since there was no significant difference between
The use of treated effluents and the use of topdressing which can lead to a reduction in the mineral fertilizers spending.
However care must be taken to the use of these effluents for. Long periods of time, because of possible soil salinity
Problems.