Links to these articles are strongly encouraged. Articles may be republished without further permission if published as written and if credit is given to the author, Integrated Crop Management News, and Iowa State University Extension and Outreach. If articles are used in any other manner, permission from the author is required.
by Greg Tylka, Department of Plant Pathology
Many Iowa soybean fields may be infested with the soybean cyst nematode (SCN) but the infestations may not be known because SCN does not always cause obvious, above-ground symptoms. In fact, yield loss of up to 40 percent has been documented without above-ground symptoms occurring.
By Stephen K. Barnhart, Department of Agronomy
New forage seedings are susceptible to a wide array of problems and stresses -flood, hail, drought, weed competition, insects, etc. Late summer can be a good time to ‘patch in’ bare or thin spots in forage stands or reseed entire fields. However there are some risks. The following steps will improve the chances for successful forage stand establishment in late summer.
by John Sawyer, Department of Agronomy
Earlier I provided observations in two articles (June 19 and June 26, 2008) on corn growth and response to nitrogen (N) applied in an anhydrous ammonia study being conducted at the ISU research farm between Ames and Boone. Following are some final observations (July 7, 2008).
By Stephen K. Barnhart, Department of Agronomy
Flooding has damaged pasture and hay meadows across the state of Iowa. While most forage will likely recover, other areas that were eroded or silt- or sand-covered will require some reseeding. The following considerations may guide you in your planning and management.
By Stephen K. Barnhart, Department of Agronomy
By Antonio P. Mallarino, Department of Agronomy
By Mahdi Al-Kaisi, Roger Elmore, Antonio Mallarino, Palle Pedersen, Alison Robertson, John Sawyer, and Jon Tollefson
By John Sawyer, Department of Agronomy
Last week (June 19) I provided some observations on corn growth and response to nitrogen (N) applied in an anhydrous ammonia study being conducted at the ISU research farm between Ames and Boone. Following are some observations one week later (June 26, 2008).
By Charles Hurburgh, Department of Agricultural and Biosystems Engineering and Dan Loy, Department of Animal Science
Floodwaters have soaked many grain bins on farms and at commercial elevators. With only a few exceptions, flood soaked grain is not useable for feed or food. Flooding affects both the stored grain and the storage structures.
Grain and Grain Products
By Mahdi Al-Kaisi, Department of Agronomy and Mark Hanna, Department of Agricultural and BioSystems Engineering
