ALTOONA, Wis. (WEAU) -- The U.S. Department of Agriculture will release its September Crop production and World Agricultural Supply and Demand estimates later today. Most grain traders don't expect much change from the August report but they do expect the numbers to drop slightly. For corn, the pre-report estimates put this year's crop at 14 billion bushels on yields averaging 167.8 bushels per acre. Last year the corn crop was 15.148 billion bushels with yields of 174.6 bushels per acre. Ending corn stocks are also expected to be a little lower at 2.133 billion bushels. For soybeans, this report is also expected to show a slightly bigger crop compared to last year. Early estimates put the crop at 4.321 billion bushels on yields of 48.7 bushels per acre-compared to the 2016 harvest of just over 4.3 billion bushels with yields of 52.1 bushels per acre. Ending soybean stocks are expected to be 437 million bushels. That report comes out at 11 o'clock this morning.
That report will follow this week's Crop Progress Report which shows the condition of both the corn and soybean crops fell slightly from a week ago. The report shows 96% of the crop is now in the dough stage-behind both last year and the 5 year average. 75% of the corn has now dented and 21% of the corn is mature-again, behind both last year and the 5 year average. 61% of the corn around the country is rated in good to excellent condition. Soybeans this week are rated 60% good to excellent with 22% of the plants dropping leaves. This week's report is considered neutral for both corn and soybeans with little effect on market prices. Farmers across the country also have 95% of their spring wheat and 96% of their oats and barley harvested.
In Wisconsin, 86% of the corn has now reached the dough stage and 48% of the ears have dented-both about a week behind average. And the corn silage harvest is just starting as the crop is rated 70% good to excellent with another 20% in good condition. Soybeans are rated 77% good to excellent this week with 30% of the plants turning color and some leaf dropping being reported. Both crops should show rapid advancement this week with the return to summer like temperatures. The report also shows state farmers have harvested 93% of the oats, 40% of the fall potato crop, 97% of third crop and 56% of their fourth crop hay. Topsoil moisture conditions fell slightly from last week and are now being called 89% adequate to surplus, 9% short and 2% very short-and that's mainly in southwest parts of the state.
Later this month, researchers with the USDA will be contacting soybean growers to find out more about their production practices. The survey will ask questions mainly about fertilizer and chemical use as well as pest management practices. About 250 Wisconsin soybean growers will be contacted for the survey which will continue through November. The last such survey was taken in 2015 and the results of this year's survey will be published next May.