Content Related to Soil Fertility
Crop News
- Delay Manure Applications if you Want to Cut Your Nitrogen Bill -
- Fall Phosphorus and Potassium Fertilization Decisions with Variable Prices and Updated Soil-Test Interpretations -
- Newly Updated Phosphorus and Potassium Guidelines -
- Beware of Dry Conditions When Soil Sampling and Interpreting Test Results -
- Using the Late Spring Soil Nitrate Test in 2022 -
- Cold Spring and High Fertilizer Prices may Make Starter Fertilizer More Important -
- Considerations for Spring Preplant Nitrogen Application for Corn with High Fertilizer Prices -
- Give Careful Consideration to Likely High Soil and Cornstalk Nitrate Levels This Fall -
- Yellow soybean too early this season? -
- Nitrogen Deficient Soybean with Excess Soil Moisture -
- Thinking of Plant Tissue Testing this Season? Beware of Drought or Excess Moisture Effects -
- Be Cautious When Interpreting Fall Soil-Test Results Following Drought -
- Wind Damaged Corn – Nutrient Content? -
- Sidedressed Liquid Potassium Can Partially Offset Deficient Preplant Fertilization for Corn -
- Crop Sulfur Fertilization This Spring -
- Spring Corn Nitrogen Fertilization Considerations -
- Fall Fertilizer Nitrogen Application -
- Phosphorus and Potassium Management for 2020 after a Year with Highly Variable Yields -
- Upper Soybean Leaves Began Showing Potassium Deficiency Symptoms Since Early August in Some Iowa Fields -
- Tissue Testing for Field Crops Requires Cautious Use and Interpretation -
- Nitrogen Fertilization Options with Delayed or Rescue Applications -
- Springtime Precipitation – A Tool for Estimating Nitrogen Application Need for Corn -
- Late-Spring Soil Nitrate Test (LSNT) Use in 2019 -
- Understanding Anhydrous Ammonia Application in Soil -
- Anhydrous Ammonia Application -- Spring 2019 -
- Soybean Potassium Deficiency Symptoms During Early and Late Growing Stages -
- Potential Nitrogen Loss - 2018 -
- Fertilization Can Help with Cool Soils and Late Planting Dates -
- A Late Spring - Nitrogen Considerations -
- Nitrogen Considerations with Dry Conditions in 2017 -
- Phosphorus, Potassium, and pH Management Following Drought Affected Crops -
- Phosphorus and Potassium in Silage Harvest of Drought-Damaged Corn -
- Potential Nitrogen Loss in Spring 2017 -
- A New Late-Spring Soil Nitrate Test Publication Now Available -
- High Yields, Low Grain Prices: Manage Phosphorus and Potassium Wisely -
- Late-Vegetative Corn Stage Soil Sampling for Nitrate-N -
- Value of Soybean Tissue Testing for Phosphorus and Potassium -
- Research Shows a Role for Phosphorus and Potassium Tissue Testing in Corn -
- Corn Nitrogen Rate Calculator Website Update -
- Nitrogen Loss? -
- Integrated Crop Management Conference Provides Latest Research and Technologies to Benefit Your Operation -
- Fertilizer Nitrogen Application This Fall -
- 45th Annual North Central Extension-Industry Soil Fertility Conference -
- Soil Profile Nitrate – Spring 2013 Sampling Summary -
- Soil Profile Nitrate in Corn Fields Following the 2012 Drought -
- Getting Ready for Fall Fertilization -
Encyclopedia Article
- Estimating losses when cornstalk fields are accidentally burnt -
- Dry fall conditions can lead to field fires -
- Water quality in the eastern Iowa basins -
- Don't double dip soybean -
- Carbon and nitrogen cycling with corn biomass harvest -
- Nutrient removal when harvesting corn stover -
- Corn response to supplemental nitrogen -
- Estimating nitrogen losses -- early spring 2007 -
- Nitrogen loss: How does it happen? -
- Increasing the frequency of corn in crop sequences: Grain yield and response to nitrogen -- a research update -
- Cornstalk nitrate interpretation -
- The Illinois Soil Nitrogen Test: Should it be used in Iowa? -
- Remember 50 degrees -
- Potassium deficiency symptoms in corn and soybean: What can we do about them? -
- Foliar fertilization of soybean: Is it useful to supplement primary fertilization? -
- Nitrogen losses after the heavy rains -
- Interpreting results of the Mehlich-3 ICP Soil Phosphorus Test -
- Gypsum: an old product with a new use -
- Soil calcium:magnesium ratios -
- Pay attention to management needs of fertilizer products -
- Is it iron or potassium deficiency? -
- Corn leaf potassium deficiency symptoms -
- Application checkpoints for fall ammonia -
- Phosphorus - Why the concern about water quality? -
- Post-plant nitrogen applications on corn -
- Watch for damage from broadcast postemerge UAN applications -
- Equipment considerations: anhydrous ammonia -
- Equipment considerations: dry granular fertilizer -
- Soil resources of phosphorus -
- Phosphorus in aquatic systems -
- Anhydrous application and dry soils -
- Management of phosphorus for crop production -
- Corn and soybean responses to deep-band phosphorus and potassium -
- Phosphorus Basics -
- What about N losses in 2000? -
- Potassium deficiency symptoms in corn -
- Why manage phosphorus? -
- Using precision agriculture to improve soil fertility management and on-farm research -
ICM Blog Post
- Low soil nitrate entering crop year 2025: what does it mean for nitrogen management this spring? -
- Fall Anhydrous Ammonia Applications: What to know about soil moisture -
- Do I Need to Add Micronutrients into my Soil Fertility Program -
- Nutrient Replacement with Corn and Soybean Stover Removal -
- Who needs sulfur? You might need sulfur. -
- Lime, Phosphorus, and Potassium Fertilizers Decisions in Times of Limited Resources -
- Taking Good Soil Samples, the First Step in a Good Fertilizer Decision -
- Now Is the Time to Prepare for Fertilizer Applications -
- Navigating Nitrogen Management in Wet Spring Conditions – Nitrogen Loss Mechanisms -
- Navigating Nitrogen Management in Wet Spring Conditions – Does the corn need more nitrogen? -
- Navigating Nitrogen Management in Wet Spring Conditions – Estimating Nitrogen Losses -
- A Recipe for Success with Soil Sampling this Fall -
- Fall Anhydrous Applications: Do’s and Don’ts -
- An Update to Web-Based Soil Fertility Resources -
- Is it time for fall nitrogen yet?! -
- Get the most bang for your buck: time your manure and anhydrous applications well -
- Fall Approaches – Time to Think about Crop Fertility for 2022 -
- What's with all the yellow soybean? -
- Collecting Late Spring Soil Nitrate Test Samples -
- Virtual crop scouting school now available from CPN -
- Use of Ammonium Thiosulfate (ATS) in Crop Production -
- Dry spring field conditions cause concern for field fires -
- Making your fertilizer dollars stretch as fertilizer prices have increased -
- Anhydrous Ammonia Application in Dry Soil -
- Fall 2020 Nitrogen Considerations -
- Biological Breakdown of Wind Destroyed Corn -
- Is It Nitrogen or Sulfur Deficiency Symptoms -
- Will fallow syndrome be an issue in 2019 prevented plant acres? -
- Soil fertility workshops to be offered -
- A recipe for success with soil sampling -
- Sampling for the End-of-Season Corn Stalk Nitrate Test -
- Soil Fertility Short Course offers in-depth, practical training -
- 2018 Soil Fertility and Nutrient Management Short Course -
- Soil Fertility Web Site Update -
- 47th Annual North Central Extension-Industry Soil Fertility Conference -
- Extension Offers Soil Fertility Short Course -
- Revised beef cattle and dairy manure nitrogen and phosphorus crop availability ranges -
- Precipitation and nitrogen this spring -
- The Corn Nitrogen Rate Calculator website redo -
- Anhydrous ammonia applications and corn planting -
- Earn CCA credits, submit poster at first Iowa Soil Health Conference -
- Be aware of potential problems with fall tillage -
- Frequently asked questions about the new MAC online training program -
- Sustained soil temperatures below 50 degrees needed for fall nitrogen application -