Integrated Crop Management News

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.

Nitrogen Loss?

December 18, 2015

Really, it just had to rain large amounts in December. Seems we can’t get any relief from worrying about excess rain and impacts on nitrogen (N). The questions have already begun – what about fall 2015 fertilizer and manure N applications?

A few things to consider.

It is quite hard to make an estimate of losses for such an extreme event and time of the year. Following are factors to consider that will affect loss potential, including if N was applied and if so what fertilizer product or manure source. Read more about Nitrogen Loss?

Hindsight is 20/20: What Can Be Learned from 2015

December 17, 2015

As the saying goes, hindsight is 20/20; perfect vision. We often say “if we knew the weather, then we can provide the best recommendations.” Usually, we do not know the weather or we do not have the appropriate tools in place, so the questions remain unanswered. Now that we know the weather, the next important question is to determine what could have been done differently in 2015. This is an important part of understanding and evaluating production and environmental performance of our crop management decisions. Read more about Hindsight is 20/20: What Can Be Learned from 2015

Yield Gap Analysis: What Limited Iowa Corn and Soybean Yields in 2015

December 17, 2015

To evaluate how good corn and soybean yields were in 2015, farmers and agronomists compare their yields to those obtained in previous years. To answer why yields were higher or lower than past years, they develop hypotheses to explain factors that limited yields based on their own experiences, anecdotal evidence from neighbors, knowledge of crop growth and development, and weather patterns. Read more about Yield Gap Analysis: What Limited Iowa Corn and Soybean Yields in 2015

New Weed Identification Field Guide Provides Updated Weed and Herbicide Resistance Information

October 30, 2015

Iowa State University Extension and Outreach has released a new version of the Weed Identification Field Guide, first published in 2010, to assist producers and agronomists with accurately identifying weeds in Iowa corn and soybean fields. The Weed Identification Field Guide, 2nd Edition, includes additional weed species and updated information on herbicide resistance management. The guide is now available for purchase online from the Iowa State University Extension Store. Read more about New Weed Identification Field Guide Provides Updated Weed and Herbicide Resistance Information

Record Number of SCN-Resistant Soybean Varieties Available, More with Peking Resistance

October 28, 2015

Growing resistant soybean varieties is a great way to manage the soybean cyst nematode (SCN). And there are hundreds of varieties from which to pick. To make variety selection easier, ISU compiles a list of SCN-resistant soybean varieties annually, and the updated list has just been released. This year’s list contains a record-high number, with more varieties with Peking resistance than ever before. Read more about Record Number of SCN-Resistant Soybean Varieties Available, More with Peking Resistance

Integrated Crop Management Conference Provides Latest Research and Technologies to Benefit Your Operation

October 27, 2015

Producers and ag business professionals reminded to register early

The annual Integrated Crop Management Conference will be held Dec. 2-3, 2015 at the Scheman Building on the Iowa State University campus. This year, the conference has added additional speakers to its program, providing topics and information on the latest in crop production and technology from around Iowa and the Midwest. Online registration is available at www.aep.iastate.edu/icm. Read more about Integrated Crop Management Conference Provides Latest Research and Technologies to Benefit Your Operation

Ag Chemical Dealer Update Meetings Provide Timely Crop Production Information

October 26, 2015

Updates on the latest crop production products and recommendations are the featured topics at meetings sponsored by Iowa State University Extension and Outreach in Iowa City on Nov. 24 and in Ames on Dec. 16.

These meetings are an excellent opportunity for ag input providers to meet with extension specialists to review current research, discuss new products and learn of new recommendations. Read more about Ag Chemical Dealer Update Meetings Provide Timely Crop Production Information

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