Professor in Soil Fertility and Nutrient Management of the University of Peradeniya Saman Dharmakeerthi says a systematic study should be conducted on the advantages of using nano nitrogen liquid fertiliser in agriculture, as well as its long-term effects.
Prof. Dharmakeerthi said research has not been conducted locally into the quality of the nano nitrogen liquid fertiliser imported from India.
Prof. Dharmakeerthi speaking at a media briefing in Kandy yesterday said nano nitrogen fertiliser contains Nano Urea, which is a chemical ingredient adding this cannot be classified as organic.
He said there are many benefits in utilising nano fertiliser adding however there are disadvantages as well.
Prof. Dharmakeerthi said nano fertiliser is still in a primary stage adding extensive field research must be conducted before using it.