Manage Soybean Diseases at Harvest Time
XB Yang, Department of Plant Pathology
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XB Yang, Department of Plant Pathology
Producers with hail damaged corn fields are invited to participate in a survey to assess the impact of hail damage on ear rot severity, mycotoxin contamination and grain quality in corn.
By Rich Pope, Department of Plant Pathology
Soybean fields are now starting to senesce, and corn is filling well. The latest USDA crop forecast projected a 187 bushel per acre average for corn yields, and 52 bushels per acre for the beans. Both would be great accomplishments considering the wet spring and cool summer. As of Sept. 13, we are lagging for the season an "average" accumulation of between 300 and 400 degree days, which rivals the 1992 growing season.
ISU researchers are conducting a three-year study looking at how removing residue at different rates affects soil productivity, nutrient cycling and greenhouse gas emissions in no-till and chisel-plow fields.
By Chad Hart, Department of Economics
By Doug Cooper, Extension Communications specialist
Guests for the weekly crop and weather report Sept. 14 are ISU Extension climatologist Elwynn Taylor, integrated pest management specialist Rich Pope and corn agronomist Roger Elmore.
With harvest is just around the corner, Taylor says an arctic cold front is heading into the U.S. from Canada, and he doesn't think it will have any significant impact on Iowa. Mason City is the furthest behind in growing degrees days from normal of any site measured in the Corn Belt.
By Steve Barnhart, Department of Agronomy
Rainfall throughout the growing season put most alfalfa producers behind two to three weeks for their first, and correspondingly their second, third, and sometimes forth cuttings. Now in mid-September, producers are trying to decide on their remaining fall harvest options and the possible impact on winter survival of the stands.
Hessian fly-free dates are one factor producers should consider when making wheat planting decisions.
Harvest issues specific to hail damaged corn and soybean fields will be less severe due to recent weather. However, there are handling and storage issues that still must be considered.
By Jim Fawcett, Extension field agronomist
Certified crop advisors can earn up to five hours of credit (including 2.5 hours in soil and water) by attending a 9 a.m. special session on Thursday, Sept. 17 on "Strip Till Using Precision Ag." This session will be followed by the Advances in Precision Ag EXPO; both will be held at the Iowa State University Southeast Iowa Research and Demonstration Farm near Crawfordsville. The EXPO, from 10:30 a.m. to 4:30 p.m., will feature field demonstrations and many exhibits by the industry's leading precision ag companies.