The USDA says American ending wheat stocks will be slightly lower than it had forecast in July.
It has lowered it's projected U-S season-average farm price for wheat by 5 cents on the low end, 15 cents on the high end - to from $3.35 to $4.05 a bushel.
The USDA's global wheat ending stocks estimate has been lowered point 9 million tons from July - but remains record large.
The department says Canada is expected to produce 1 million tons more wheat than forecast a month ago.
Corn ending stocks for the U-S are boosted by 328 million bushels - the highest since 1987-88.
The season-average U-S corn price to producers has been cut by 25 cents at both ends to between $2.85 and $3.45 a bushel.
Globally, corn stocks have been bumped up 12 point 4 million tons, with the U-S accounting for two-thirds of that increase.
And despite higher use, the U-S soybean ending stocks have been increased by 40 million bushels from last month's estimate.
Along with that comes a 40 cent cut in the season-average U-S soybean price for producers to from $8.35 to $9.85 a bushel.
Global oilseed ending stocks, which include soybeans, are now expected to be 4 point 5 million tons higher than in the USDA's July estimates.
