- PublishedAgronomic considerations regarding the use of corn as a cover crop include the following:This is an excerpt from a formal letter Emerson Nafziger and I wrote on this issue. A link to the letter is included below.1. Neither seed nor grain produced from seed of transgenic (GMO) corn hybrids can be used as cover crop seed, due to patent prohibitions.
University of Illinois Extension Specialists and Educators created the following checklist of common late planting questions.
- PublishedAn update to the chart adding Week#19. we are poised to be the second slowest planting season in the last 20 years at the need of week #19 (second week of May)
- PublishedThe 2018 planting season got off to a very late start and now in 2019 we are running even later. As the updated chart shows, delayed planting does not necessarily equate with lower yields.
- PublishedDr Emerson Nafziger, Professor Emeritus University of Illinois, recently updated the Illinois nitrogen response date by adding data from the 2018 field trials. This data has been incorporated into the MRTN website http://cnrc.agron.iastate.edu/ and also into the downloadable cell phone apps.Apple: In the App Store
- PublishedHere are links to Nitrogen application resources for Fall 2018:
- PublishedStealing a phrase from the "Hitchhiker's Guide to the Galaxy", there is still time to plant and get above average yields. The attached chart shows the Illinois corn planting progress chart since 1999 and the corresponding corn and soybean yields. I included the soybean yields because I have heard the question, "If corn planting is late, then soybeans will be even later and we have been pushing for early planting beans for higher yields." The USDA NASS data in the chart does not really show a penalty for years when things start really slow.
We often start April with some corn already planted and we normally end April with about 50 percent of the corn planted, based upon state averages published by the National Agricultural Statistics Service. The latest planting start in the last 20 years was in 2013 when only 1 percent of the crop had been planted by May 1 but by mid-May we had recovered significantly with 75 percent planted. The slowest year was probably 2009, that year at mid-May we were only at 20 percent planted. Even with the slow starts back in in 2009 and 20013 we ended up with average trendline yields.
- PublishedThe Soybean Seeding Calculator that Emerson Nafziger and I put together has moved to a new server. The old links went through a Dropbox folder. Unfortunately, Dropbox changed their sharing protocol and the links would no longer work and the links could not be changed. The University of Illinois Crop Science Department gave me a spot on their server to host some of my apps. I am now trying to get the word out. Unfortunately old documents on the Internet have a long lifespan and are out of my control.
- PublishedThe 2018 University of Illinois Crop Management Conferences will be held as follows:
January 24- Holiday Inn, Mt. Vernon
January 31- University of Illinois Springfield
February 7- iHotel and Conference Center, Champaign
February 21- Kishwaukee College, Malta
Look for registration information in early December.
- PublishedThe probability of getting the maximum soybean yield declines very similar to corn.
- PublishedThese young soybean plants emerging near Cisco, IL may wish they were still in the bag, but soybean planting date research shows that in Central and Northern Illinois early planted soybeans tend to have highest probability of maximum yield.
- PublishedOne of the most feared diseases of soybean is Sudden Death Syndrome(SDS). In quick fashion a previously perfect looking soybean field can deteriorate. The sight of yellow and brown soybean leaves with green veins is the first indication farmers have that they have a problem.
Extension Staff Join with other Agencies to Survey Illinois for New Corn Disease
The USDA just announced the presence of Bacterial leaf streak in corn, as determined by recent surveys of the Corn Belt states. In Illinois, a cooperative survey was organized with APHIS-PPQ (Animal Plant Health Inspection Service), IDA (Illinois Department of Agriculture), CAPS (Illinois Natural History Survey's Cooperative Agricultural Pest Survey) and University of Illinois Extension to provide a rapid response to determine distribution.
- PublishedBetter than expected yields and a very dry fall are causing soils to test very low for available potassium (K). Most of the K in corn is in the foliage an is washed back into the soil by rainfall as the residue decays. Some of the K may also be locked into very dry soil clay particles. If you look at annual graphs of soil available K, September is traditionally the low point in the cycle, but normally the levels rebound quickly after harvest. The lack of fall rains, this year, has delayed that process.
- PublishedOne of those oddities that I get a question or two about every fall. Why do soybean plants near street/highway lights stay green until frost?
- PublishedTomorrow I will spend "two days" on airplanes. Last fall I was nominated by my boss, ACES Associate Dean and Director of Extension, Dr. George Czapar to be a fellow in this year's ACES Global Academy cohort. This program is funded by a generous private endowment to expose ACES faculty to international issues and facilitate collaboration with potential international research partners. This year's cohort is focused on international food security and climate change.
- PublishedNo April Fools joke, corn planting started at the South Farm yesterday. Not very much, but for a couple of experiments looking at planting date, April 1 will be the first of several planting dates included. Heat units will not likely accumulate very fast but I will start tracking using the U2U Corn GDD tool. Average weather would predict emergence around the 19th or 20th of April.