according to field surveys most farmers admitted that they could not know whether the fertiliser that they had bought either imported or produced domestically was adulterated except for some brands selling at a premium a test to check fertiliser quality should not cost much relative to the price of the fertiliser and could be made widely available hks three urea stateowned plants built in the s and run by the myanmar petrochemical enterprise produce around tonnes per year ie less than of their capacity and around of domestic requirements