| Don't double dip soybean | IC-498(25) -- November 12, 2007 |
| How do uncertain prices influence phosphorus and potassium fertilization this fall? | IC-498(24) -- October 1, 2007 |
| Carbon and nitrogen cycling with corn biomass harvest | IC-498(22) -- August 6, 2007 |
| Nutrient removal when harvesting corn stover | IC-498(22) -- August 6, 2007 |
| How residue removal affects nutrient cycling | IC-498(11) -- May 21, 2007 |
| Corn response to supplemental nitrogen | IC-498(10) -- May 14, 2007 |
| Estimating nitrogen losses -- early spring 2007 | IC-498(10) -- May 14, 2007 |
| Measuring the nitrogen status -- 2007 | IC-498(10) -- May 14, 2007 |
| Nitrogen loss: How does it happen? | IC-498(10) -- May 14, 2007 |
| Wet conditions: Challenges and opportunities | IC-498 (9) -- May 7, 2007 |
| Corn Nitrogen Rate Calculator Web tool update | IC-498 (5) -- April 9, 2007 |
| Wet soils and potential compaction | IC-498 (5) -- April 9, 2007 |
| Increasing the frequency of corn in crop sequences: Grain yield and response to nitrogen -- a research update | IC-498 (1) -- February 12, 2007 |
| Nitrogen fertilization for corn following corn | IC-498 (1) -- February 12, 2007 |
| Tillage challenges in managing continuous corn | IC-498 (1) -- February 12, 2007 |
| Corn Nitrogen Rate Calculator Web tool updated | IC-496(24) -- September 18, 2006 |
| Cornstalk nitrate interpretation | IC-496(24) -- September 18, 2006 |
| Field soil variability and its impact on crop stand uniformity | IC-496(16) -- June 19, 2006 |
| Can residue be managed successfully with no-till? | IC-496(11) -- May 15, 2006 |
| High nitrogen fertilizer prices -- again | IC-494(24) -- October 10, 2005 |
| The Illinois Soil Nitrogen Test: Should it be used in Iowa? | IC-494(24) -- October 10, 2005 |
| Why conservation systems are the right choice this fall | IC-494(24) -- October 10, 2005 |
| Plan carefully for potassium fertilization this fall | IC-494(23) -- September 19, 2005 |
| Remember 50 degrees | IC-494(23) -- September 19, 2005 |
| The new Iowa interactive Soil Survey | IC-494(23) -- September 19, 2005 |
| Beware! Nitrate potential in drought-stricken corn crop | IC-494(22) -- August 22, 2005 |
| Dry manure field day | IC-494(20) -- July 25, 2005 |
| Foliar fertilization of soybean: Is it useful to supplement primary fertilization? | IC-494(15) -- June 20, 2005 |
| Soil crusting across Iowa | IC-494(12) -- May 31, 2005 |
| Spring wind erosion and residue management | IC-494(11) -- May 23, 2005 |
| Soil moisture conditions -- consideration for soil compaction | IC-494 (9) -- May 9, 2005 |
| How to reduce potential soil erosion early in the spring | IC-494 (8) -- May 2, 2005 |
| Evaluating soil moisture before field preparation and planting | IC-494 (6) -- April 11, 2005 |
| New concept for promoting conservation tillage systems | IC-494 (4) -- March 14, 2005 |
| High prices and tight supply make fertilization decisions tough | IC-492(21) -- October 4, 2004 |
| Soil samping for future manure management plans | IC-492(20) -- September 13, 2004 |
| The role of pasture in conservation management | IC-492(19) -- August 16, 2004 |
| Frequent tillage and its impact on soil quality | IC-492(13) -- June 28, 2004 |
| Assessing nitrogen losses | IC-492(10) -- June 7, 2004 |
| Nitrogen losses after the heavy rains | IC-492(10) -- June 7, 2004 |
| Spring rain and soil erosion | IC-492(10) -- June 7, 2004 |
| Crop-specific cultivating tillage | IC-492 (8) -- May 17, 2004 |
| Tillage implement design and its effect on soil | IC-492 (4) -- April 19, 2004 |
| Site-specific tillage choices management | IC-492 (3) -- March 22, 2004 |
| Spring tillage preparation | IC-492 (2) -- February 23, 2004 |
| Carbon credits and conservation practices | IC-492 (1) -- January 26, 2004 |
| Crop rotation considerations for 2004 management season rotation | IC-490(25) -- December 15, 2003 |
| Interpreting results of the Mehlich-3 ICP Soil Phosphorus Test | IC-490(24) -- November 17, 2003 |
| Conservation planning for 2004 | IC-490(23) -- October 20, 2003 |
| Use new potassium soil test and fertilizer recommendations | IC-490(23) -- October 20, 2003 |
| Drought impacts on soil fertility management | IC-490(22) -- October 6, 2003 |
| Harvest equipment considerations | IC-490(22) -- October 6, 2003 |
| Managing soils under dry conditions | IC-490(22) -- October 6, 2003 |
| Time to evaluate fall soil conditions | IC-490(21) -- September 15, 2003 |
| Carbon sequestration | IC-490(19) -- August 4, 2003 |
| Managing your pasture to reduce soil erosion | IC-490(17) -- July 21, 2003 |
| Post-planting cultivation in a conservation plan | IC-490 (9) -- May 19, 2003 |
| Check equipment calibration before planting | IC-490 (6) -- April 28, 2003 |
| Gypsum: an old product with a new use | IC-490 (5) -- April 21, 2003 |
| Nonconventional soil additives | IC-490 (5) -- April 21, 2003 |
| Soil calcium:magnesium ratios | IC-490 (5) -- April 21, 2003 |
| Getting the most from nitrogen fertilizer dollars | IC-490 (4) -- April 14, 2003 |
| Natural gas prices impact nitrogen fertilizer costs | IC-490 (4) -- April 14, 2003 |
| Pay attention to management needs of fertilizer products | IC-490 (4) -- April 14, 2003 |
| Spring - soil's most vulnerable season | IC-490 (4) -- April 14, 2003 |
| Integrating conservation tillage and manure management to improve water quality | IC-490 (3) -- March 17, 2003 |
| Conservation planning and environmental issues | IC-490 (2) -- February 17, 2003 |
| Volunteer for IOWATER in 2003 | IC-488(24) -- December 23, 2002 |
| Consider residue management options for 2003 | IC-488(23) -- November 18, 2002 |
| Hailed-out soybean fields | IC-488(22) -- October 21, 2002 |
| Residue management and manure application | IC-488(22) -- October 21, 2002 |
| Soil erosion and water quality | IC-488(21) -- September 23, 2002 |
| Equipment maintenance: time to check the combine | IC-488(20) -- August 19, 2002 |
| Soil erosion: effect on soil productivity | IC-488(20) -- August 19, 2002 |
| Soil compaction may be cutting into your yield | IC-488(16) -- July 8, 2002 |
| Corn leaf potassium deficiency symptoms | IC-488(15) -- July 1, 2002 |
| Is it iron or potassium deficiency? | IC-488(15) -- July 1, 2002 |
| Conservation buffers can improve water quality | IC-488(14) -- June 24, 2002 |
| Inspecting drainage systems | IC-488(13) -- June 17, 2002 |
| Get acquainted with the Iowa CREP | IC-488(12) -- June 10, 2002 |
| Test cornfields for nitrate if manure was not incorporated | IC-488(10) -- May 27, 2002 |
| Methods for measuring crop residue | IC-488 (8) -- May 13, 2002 |
| Post-planting tillage: What are the options? | IC-488 (7) -- May 6, 2002 |
| Does dry weather limit tillage options? | IC-488 (5) -- April 15, 2002 |
| Equipment maintenance: Planters | IC-488 (4) -- April 8, 2002 |
| Corn yields at reduced rates of spring nitrogen in 2001 | IC-488 (3) -- March 18, 2002 |
| Do I need to till my soil? | IC-488 (3) -- March 18, 2002 |
| Field observations are key when planning spring work | IC-488 (3) -- March 18, 2002 |
| Should fertilizer nitrogen be applied after injected swine manure? | IC-488 (3) -- March 18, 2002 |
| Equipment maintenance: Fertilizer applicators | IC-488 (2) -- February 18, 2002 |
| Fall nitrification happened | IC-488 (1) -- January 21, 2002 |
| Tillage equipment maintenance | IC-488 (1) -- January 21, 2002 |
| Sediment and total maximum daily loads | IC-486(25) -- December 24, 2001 |
| Winter grazing and pasture erosion | IC-486(24) -- November 19, 2001 |
| Application checkpoints for fall ammonia | IC-486(23) -- October 22, 2001 |
| Nitrogen application questions | IC-486(23) -- October 22, 2001 |
| Tillage in 2002 - consider the options | IC-486(23) -- October 22, 2001 |
| Water quality in the eastern Iowa basins | IC-486(23) -- October 22, 2001 |
| Why 50 degrees Fahrenheit? | IC-486(23) -- October 22, 2001 |
| Plan for 2002 residue before harvest | IC-486(22) -- September 17, 2001 |
| Fall tillage and tillage equipment | IC-486(21) -- August 20, 2001 |
| N management influences on N losses through tile lines | IC-486(21) -- August 20, 2001 |
| Phosphorus - Why the concern about water quality? | IC-486(21) -- August 20, 2001 |
| Managing pasture to reduce soil erosion | IC-486(20) -- July 30, 2001 |
| Consider permanent vegetation for steeply sloping soils | IC-486(18) -- July 16, 2001 |
| Watershed-scale phosphorus management | IC-486(18) -- July 16, 2001 |
| It is not too late to apply nitrogen for 2001 | IC-486(16) -- July 2, 2001 |
| Corn roots are just reaching anhydrous bands | IC-486(15) -- June 25, 2001 |
| Nitrogen losses in 2001 | IC-486(14) -- June 18, 2001 |
| Soil nitrate concentrations are low this year | IC-486(14) -- June 18, 2001 |
| Wet soils vulnerable to compaction | IC-486(13) -- June 11, 2001 |
| Soil moisture conditions in late spring 2001 | IC-486(12) -- June 4, 2001 |
| Timing cultivation to complement conservation plans | IC-486(11) -- May 28, 2001 |
| Preventing soil erosion after spring rains | IC-486(10) -- May 21, 2001 |
| Phosphorus losses to surface water | IC-486 (9) -- May 14, 2001 |
| Post-plant nitrogen applications on corn | IC-486 (9) -- May 14, 2001 |
| Watch for damage from broadcast postemerge UAN applications | IC-486 (9) -- May 14, 2001 |
| Use the rotary hoe for soil crusting | IC-486 (8) -- May 7, 2001 |
| How did your waterways fare this spring? | IC-486 (7) -- April 30, 2001 |
| Dealing with wet soils | IC-486 (6) -- April 23, 2001 |
| Value of crop rotation in nitrogen management | IC-486 (6) -- April 23, 2001 |
| Equipment considerations: liquid fertilizer | IC-486 (5) -- April 16, 2001 |
| Phosphorus and swine feeding | IC-486 (5) -- April 16, 2001 |
| 2001 Agriculture and the Environment conference | IC-486 (4) -- April 9, 2001 |
| Equipment considerations: anhydrous ammonia | IC-486 (4) -- April 9, 2001 |
| Equipment considerations: dry granual fertilizer | IC-486 (4) -- April 9, 2001 |
| Early season losses of nitrogen | IC-486 (2) -- February 26, 2001 |
| Impact of soil management practices on yield | IC-486 (2) -- February 26, 2001 |
| Nitrate testing: early versus late spring | IC-486 (2) -- February 26, 2001 |
| Nitrogen fertilizer management options | IC-486 (2) -- February 26, 2001 |
| Soil erosion and water quality | IC-486 (2) -- February 26, 2001 |
| Soil resources of phosphorus | IC-486 (2) -- February 26, 2001 |
| Making every fertilizer nitrogen dollar pay | IC-486 (1) -- January 29, 2001 |
| Natural gas prices affect nitrogen fertilizer costs | IC-486 (1) -- January 29, 2001 |
| Optimal N rates in dry years | IC-486 (1) -- January 29, 2001 |
| Save nitrogen dollars after manure | IC-486 (1) -- January 29, 2001 |
| Soil erosion and crop productivity: topsoil thickness | IC-486 (1) -- January 29, 2001 |
| Phosphorus in aquatic systems | IC-484(25) -- December 18, 2000 |
| Tillage management critical to profit | IC-484(25) -- December 18, 2000 |
| Planning tillage for 2001 | IC-484(24) -- November 20, 2000 |
| Anhydrous application and dry soils | IC-484(23) -- October 23, 2000 |
| Dry fall leads to field fires | IC-484(23) -- October 23, 2000 |
| Management of phosphorus for crop production | IC-484(23) -- October 23, 2000 |
| Pay attention to water management | IC-484(23) -- October 23, 2000 |
| Survey: Iowa no-till holds steady | IC-484(23) -- October 23, 2000 |
| Corn and soybean responses to deep-band phosphorus and potassium | IC-484(22) -- September 18, 2000 |
| Soil testing and available phosphorus | IC-484(22) -- September 18, 2000 |
| Tillage in 2001: No-till | IC-484(22) -- September 18, 2000 |
| Soil pH and losses of fall-applied ammonia | IC-484(21) -- August 21, 2000 |
| Tillage in 2001: Fall strip-tillage | IC-484(21) -- August 21, 2000 |
| Is fall nitrogen profitable? | IC-484(20) -- August 7, 2000 |
| Phosphorus Basics | IC-484(20) -- August 7, 2000 |
| Tillage in 2001: Consider the options | IC-484(20) -- August 7, 2000 |
| Consider carbon sequestration on your farm | IC-484(19) -- July 24, 2000 |
| Soil erosion: An agricultural production challenge | IC-484(19) -- July 24, 2000 |
| Time to check the terraces | IC-484(18) -- July 17, 2000 |
| Fencing cattle away from creeks | IC-484(17) -- July 10, 2000 |
| Value of Iowa's wetlands | IC-484(16) -- July 3, 2000 |
| What about N losses in 2000? | IC-484(16) -- July 3, 2000 |
| Potassium deficiency symptoms in corn | IC-484(15) -- June 26, 2000 |
| Use conservation buffers to make dollars and sense | IC-484(15) -- June 26, 2000 |
| Erosion in northeastern Iowa | IC-484(14) -- June 19, 2000 |
| Conservation buffers and water quality | IC-484(13) -- June 12, 2000 |
| Don't forget about grassed waterways | IC-484(12) -- June 5, 2000 |
| Choosing cultivation for dry soils | IC-484(11) -- May 29, 2000 |
| Crop water use or evapotranspiration | IC-484(11) -- May 29, 2000 |
| Soil crust-busters | IC-484 (9) -- May 15, 2000 |
| Adjusting planting soil depth for better germination | IC-484 (8) -- May 8, 2000 |
| How to evaluate soil moisture in the field | IC-484 (6) -- April 24, 2000 |
| Why manage phosphorus? | IC-484 (6) -- April 24, 2000 |
| Estimating losses when cornstalk fields are accidentally burnt | IC-484 (4) -- April 10, 2000 |
| Projected dry weather limits tillage options | IC-484 (4) -- April 10, 2000 |
| Hold nitrogen on manured cornfields in 2000 | IC-484 (2) -- February 28, 2000 |
| National summit on private land conservation | IC-484 (1) -- January 31, 2000 |
| Measure your crop residue | IC-482(10) -- May 17, 1999 |
| Status of fall-applied N this spring | IC-480(10) -- May 18, 1998 |
| Sampling fields for nitrate in late spring | IC-480 (7) -- April 27, 1998 |
| A long-term precision agriculture project | IC-480 (4c Precision Ag Edition) -- April 9, 1998 |
| Patterns in optimal rates of N fertilization within cornfields | IC-480 (4c Precision Ag Edition) -- April 9, 1998 |
| Potential for nitrogen fertilizer variable rate management: a case study | IC-480 (4c Precision Ag Edition) -- April 9, 1998 |
| Using precision agriculture to improve soil fertility management and on-farm research | IC-480 (4c Precision Ag Edition) -- April 9, 1998 |
| Liming works with no-till, study finds | IC-480 (4b Special Winter Crops Edition) -- April 7, 1998 |
| Symptoms of dry soil-induced potassium deficiency | IC-478(15) -- June 30, 1997 |
| What about credits for nitrogen supplied by animal manures? (Part 1) | IC-478(15) -- June 30, 1997 |
| Inconsistencies in results of soil nitrate testing | IC-478(10) -- May 26, 1997 |
