The annual OMAFRA survey of soil nitrate nitrogen levels across the province showed considerably higher levels than in previous years.
The survey was done from June 3rd to the 5th.
It targeted fields where nitrogen-containing fertilizer was not broadcast applied this spring, had no recent history of manure and the previous year crop was corn, soybeans, edible beans or cereals.
It showed the average soil nitrate levels were 4 to 5 parts per million higher than the survey's historic average.
According to the OMAFRA field crop unit, this spring's nitrate levels do not appear to be significantly affected by soil texture.
The survey results suggest fertilizer nitrogen requirements this year may be less than generally needed in most years.
The ministry is recommending producers use a PSNT test on their fields to determine how much fertilizer nitrogen is required compared to what they typically apply at side dress or with late applications.
