This article was written by Joanna Follings, OMAFRA Cereal Specialist and Mike Cowbrough, OMAFRA Weed Specialist-Field Crops Q: Can I mix ammonium thiosulphate (ATS) with herbicides and fungicides to address sulphur deficiency symptoms or should I apply it separately with streamer nozzles? A: With reductions in atmospheric sulphur deposits, Ontario research has found significant sulphur responses (10–14 bu/acre) on some…
Sulphur (S) had been a neglected nutrient in Ontario for many years. For decades, in much of Ontario, sulphur came in significant quantities from the sky – deposited from emissions from industrial activity. Even before that, impurities in fertilizers and more widespread application of manure helped ensure a regular addition of sulphur to our soils. In recent years things have…
Sulphur (S) deficiency was very prevalent in winter wheat last spring, including fields with a history of manure applications (Photo 1). The deficiency seen in many fields may have resulted from a cooler than normal April reducing S mineralization. S applications may not be required every year due to the year to year variation in response which might have you asking…
With recent rains, forage growth has been excellent. Making dry hay has been quite challenging in August, with lots of baleage being made. Forage inventories and quality are generally good in most parts of the province. Considerable wheat acres are being followed by seeding oats, Italian ryegrass, and alfalfa mixtures. (Forage Options Following Wheat http://fieldcropnews.com/?p=9028) We are seeing more situations where there…
by Joel Bagg, Forage Specialist, & Bonnie Ball, Soil Fertility Specialist, OMAFRA Sulphur (S) received from atmospheric sulphur dioxide emissions (acid rain) in Ontario has steadily declined by over 50% during the last 25 years. We are beginning to see yield responses in more situations when applying S to alfalfa. Sometimes the response is dramatic, while in other situations there…
