April 2006 Newsletter Volume 25:4

APRIL WEATHER:			Soil Temperature (oF)
	Air Temp. (oF)	Humidity (%)	4" (Bare)	4" (Sod)
Monthly Average High	67.4	88.4	61.6	56.6
Monthly Average Low	43.5	34.9	50.6	50.2
Observed High (date)	86(14)	100(2)	82(15)	65(15)
Observed Low (date)	28(8)	19(20)	39(5,6)	41(5)

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2006 Precipitation (in inches)

Month	Monthly Total	Monthly Departure from Average	Since January 1 Total Accumulation		Since January 1 Total Departure
January	2.91	+1.38	2.91		+1.38
February	0.36	- 1.01	3.27		+0.37
March	4.17	+1.21	7.44		+1.58
April	3.21	- 0.46	10.65		+1.12

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Crop Progress

Some of our later planted corn (April 27) has taken 11 days to emerge, which is as long as our first planted corn (April 6). All of the corn was planted by May 4, with the exception of the last planting date which will be planted near the end of May in a study. Emergence has been fairly uniform and stands appear to be good. With the cooler temperatures crop development has been slow.

The only soybeans emerged are those planted early (April 21). Soybean planting is nearing the end at NWRC, though temperatures in the lower 40's haven�t generated much urgency in finishing planting. The wheat is just beginning to head and the stands look very good. Oats are more than 6 inches tall and beginning to grow quickly.

NWRC Research Projects

We have the most research projects being conducted this year at NWRC since I came 10 years ago. To give a brief overview, we have 6 studies looking at different variables interacting with N rates on corn. There are at least 5 studies looking at management of soybean cyst nematode. Corn population is a variable being studied in 4 studies. Corn rootworm management is being evaluated in 5 different studies. We welcome any questions about any of the studies, and have listed the researchers to contact at the U of I.

U of I Field Days

Urbana-Weeds	June 21, 8:00 AM		Dixon Springs	Aug. 3, 8:00 AM
DeKalb-Weeds	July 6, 5:00 PM		Urbana	Aug. 17, 7:00 AM
Brownstown	July 27, 9:00 AM		Orr Center	Aug. 21, 4:00 PM
DeKalb	Aug. 1, 4:00 PM		Monmouth	Aug. 22, 8:00 AM

Following are the dates and times set for field days at the U of I research centers for this growing season. Make a note on your calendar for those of interest, and look for more information on specific topic through the various media outlets closer to the dates.

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NWRC 2006 Research Projects

Title	Investigator	Duration	Funding
Variety Trials
Commercial Corn Hybrid Trial	R. Esgar, D. Joos, B. Henry	annual	entry fees
Corn Hybrid Trial following Corn	R. Esgar, D. Joos, B. Henry	annual	entry fees
Conventional Soybean Variety Trial	R. Esgar, D. Joos, B. Henry	annual	entry fees
Roundup Ready Soybean Variety Trial	R. Esgar, D. Joos, B. Henry	annual	entry fees
SDS Screening of Soybean Varieties	W. Pedersen, K. Ames	2003-2006	ISPOB
Oat Variety Trial	F. Kolb, N. Smith, E. Adee	annual	Hatch
Greenstem of Soybean Variety Selection	G. Hartman, C. Hill	2006	ISPOB
White Mold Variety Trial	R. Bowen	2006
Fertility
N Rates for Continuous and Rotated Corn	R. Hoeft, E. Nafziger, E. Adee	1981-indefinite	FREC
Interaction of Roundup and Mn on Soybean Yield	S. Ebelhar, Adee, M. Johnson	2004-2006	FREC
Fall and Spring Applied N rates on Wheat	Adee, Paul, Johnson, Ebelhar	2003-2006	FREC
WCR Management & N-rate on Corn	M. Gray, R. Estes, D. Bakken	2005-2006
N Rates at Different Populations of Corn	E. Nafziger, Adee, Johnson	2005-
Corn Residue Removal and N Rate	J. Coulter, Nafziger, Adee	2006-
Corn Grain Quality with N Rate, Population and Hybrid	F. Below, M. Ruffo,	2006	FREC
AgroFresh 1-MCP on Corn and Soybeans	F. Below, M. Uribelarrea	2006	AgroFresh
Micronutrient Seed Treatments on Corn and Soybeans	Nafziger/Adee/Johnson	2006	Stoller
In-Furrow and 2x2 of X-Tra Power on Corn and Sb	Nafziger/Adee/Johnson	2006	Stoller
Cultural Practices
Corn-Corn-Soybean Rotation	E. Nafziger, Adee, Johnson	2002-	Pioneer
Fertility, Tillage and Population for Continuous Corn	E. Nafziger, Adee, Johnson	2005-	FREC
Bioassay of Fall Residue Treatments for Corn	E. Nafziger, Adee, Johnson	2006
Crop Rotation Study with Corn, Soybean and Wheat	E. Nafziger, Adee, Johnson	1996-indefinite	Hatch
Tillage Rotation	M. Wander	1997-2006
Effect of Tillage Depth on Corn	Adee, Johnson	2005-	Hatch
Corn Planting Date and Population	E. Nafziger,  Adee, Johnson	2005-
Yield Accumulation of Corn	E. Nafziger,  Adee, Johnson	2005-
Foliar Application and Soybean Maturity	E. Nafziger,  Adee, Johnson	2006
Soybean Planting Rate in 15" No-till	Adee/Johnson	2006
Pest Management
Corn Rootworm Insecticides Comparison	K. Steffey, M. Gray, R. Estes	1983-indefinite
Comparison of RwBt Hybrids	K. Steffey, M. Gray, R. Estes	2006	Monsanto
RwBt vs. Insecticide Demonstration	Adee/Johnson	2006
Headline on Corn	Adee/Johnson	2006
Soybean Aphid Movement	D. Voegtlin	2001-2006	C-Far
Bioassay Soybean Cyst Nematode Management with Moderately Resistant Varieties	E. Adee, M. Johnson	2005-2006	Pioneer
Effect of Annual Ryegrass on SCN	Morrison/Niblack/Adee	2006
Soybean Cyst Nematode and Planting Treatments	T. Niblack,	2005-2006	Syngentia
Seed Treatment on Soybeans	W. Pedersen	2006	Syngentia
Wheat Fungicide Study on Scab	E. Adee, L, Paul	2003-	USWBSI
Fungicides/Insecticides on Soybeans	W. Pedersen, K. Ames	2005-	ISPOB
Economics of RwBt vs. non-Bt Corn	E. Adee, M. Johnson	2006
Effect of Timing & Severity of Defoliation on Soybean	E. Nafziger, Adee, Johnson	2005-
Sentinel Plots for Soybean Rust	E. Adee, M. Johnson	2005-
Spore Trap for Soybean Rust	Adee, Johnson	2005-
Stewarts Wilt Evaluation on Sweet Corn Varieties	J. Pataky	2006
RR & Greenstem on Soybean	R. Bowen, C. Hill	2006

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Investigator	Phone	E-mail		Investigator	Phone	E-mail
Eric Adee	309-734-7459	adee@uiuc.edu		Fred Kolb	217-244-6148	f-kolb@uiuc.edu
Keith Ames	217-351-5723	kaames@uiuc.edu		Jim Morrison	815-397-7714	morrison@uiuc.edu
Robert Dunker	217-244-5444	r-dunker@uiuc.edu		Emerson Nafziger	217-333-4424	ednaf@uiuc.edu
Steve Ebelhar	618-695-2790	sebelhar@uiuc.edu		Terry Niblack	217-244-5940	tniblack@uiuc.edu
Ralph Esgar	217-333-1194	r-esgar@uiuc.edu		Jerald Pataky	217-333-6606	j-pataky@uiuc.edu
Ron Estes	217-333-6652	restes@uiuc.edu		Lyle Paul	815-824-2029	lylepaul@uiuc.edu
Mike Gray	217-333-6652	m-gray4@uiuc.edu		Wayne Pedersen	217-333-3847	whitemold@uiuc.edu
Robert Hoeft	217-333-4424	rhoeft@uiuc.edu		Kevin Steffey	217-333-6652	steffey@uiuc.edu
Glen Hartman	217-244-3258	ghartman@uiuc.edu		Dave Voegtlin	217-244-2152	dvoegtli@uiuc.edu
Brian Henry	217-333-1194	bhenry1@uiuc.edu		Michelle Wander	217-333-9471	mwander@uiuc.edu
Darin Joos	217-333-1194	joos@uiuc.edu

 

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