Assessing available N from fall and spring applications
Sidedress N application rates
If no fertilizer N has been applied this season or soil N measurements suggest little N remains from fall- and spring-applied N, consider using our current N rate recommendations based on results of field trials conducted since 2006 throughout the state using efficient methods and timings of N fertilizer application. The estimated Agronomic Optimum N Rate (AONR) for fine textured soils in westcentral and northwest Indiana is about 173 lbs N / ac. The AONR for fine textured soils in northeast, eastcentral, and central Indiana is about 221 lbs N / ac. The AONR for the remainder of the state (NC, SW, SC, and SE) is about 183 lbs N / ac. For more details on these recommendations see our current publication at: http://www.agry.purdue.edu/ext/corn/news/timeless/NitrogenMgmt.pdf
At the five Purdue locations where we conducted paired trials of corn following soy and corn following corn in 2007-2010, the average AONR for corn/corn was 44 lbs greater than for corn/soy. Based on $0.50 to $0.70/lb N and $7.00/bu corn, the average Economic Optimum N Rate (EONR) for corn following soybean was approximately 164, 203, and 172 lbs N / ac for WC+NW, NE+EC+C, and the remainder of the state, respectively. The EONR values for other combinations of N cost and grain price are listed in the Nitrogen Management Guidelines for Indiana or in the on-line N calculator for Indiana at this web site: http://extension.agron.iastate.edu/soilfertility/nrate.aspx.
Self-contained hydraulic system with power cables (hydraulic). Tandem Henschen axles (hydraulic). Hydraulic fenders. Manual or hydraulic tilt. 6,500-gallon tank.
- Dry weather, biofuel mandate to boost palm prices in 2014
- 2014 Farm Bill: Reallocating base acreage
- FAS administrator talks world ag export situation
- The Beige Book is out. The agriculture picture is not rosy
- New precision potassium fertilizer from AgroLiquid
- Ag markets ended the week in decidedly mixed fashion
- Are you in favor of a federal labeling standard for food that might contain genetically modified ingredients?
- Commentary: Barking up the wrong tree
- Water allocation for most drought-stricken Calif. farms to end
- Look at how the rice scheme made Thailand unstable
- Larson Electronics offers 150 Watt LED high bay light fixture
- Growth Points: Big data is about to get even bigger
R&R Minuteman Blend System
R&R Manufacturing Inc.