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Research Updates

Graph of yields from soybean population study

April 6, 2018

What On-Farm Research has Taught Us about Soybean Seeding Rates

By Jenny Brhel - Extension Educator, Laura Thompson - Former Extension Educator, Nathan Mueller - USDA NRCS, State Soil Health Specialist

cropwatch graphic

April 12, 2018

KSU Assesses Yield Potential of Drought-Tolerant Corn

By KSU Extension Agronomy

Figure 1. Planting into cold soil (below 50Â°F) when cold conditions are expected for the next 48 hours can lead to germination problems and seedlings not emerging or not emerging well. 1a. Corn seedling that started leafing out below ground and now has twisted leaves which will delay or negate normal plant development.. Figures 1b-c. Unemerged seedlings attempting to leaf out belowground. None of the seedlings shown should be counted as a productive plant.

April 12, 2018

Cold Soil Temperature and Corn Planting Windows

By Roger Elmore - Emeritus Extension Cropping Systems Agronomist, Jim Specht - Emeritus Professor of Agronomy, Jenny Brhel - Extension Educator, Haishun Yang - UNL Associate Professor of Agronomy and Horticulture, Patricio Grassini - Professor of Agronomy and Horticulture, and Cropping Systems Specialist

Soybean fields in planting date study at UNL's East Campus

April 19, 2018

Amplifying Positive Impacts of Early Soybean Planting

By James Specht - Emeritus Professor of Agronomy, Patricio Grassini - Professor of Agronomy and Horticulture, and Cropping Systems Specialist, Jenny Brhel - Extension Educator, Nathan Mueller - USDA NRCS, State Soil Health Specialist, Roger Elmore - Emeritus Extension Cropping Systems Agronomist, Juan Ignacio Rattalino Edreira - Research Assistant Professor of Agronomy and Horticulture

Figure 1. Land-applied manure from finishing 5 million beef cattle per year in Nebraska contains the equivalent of 150 lb/ac/yr N applied to 1.2 million acres.

January 8, 2018

Fertilizer N Substitution Values of Land-Applied Organic Materials

By Charles Wortmann - Emeritus Extension Soil and Nutrient Management Specialist, Tim Shaver - Extension Nutrient Management Specialist, Juan Pablo Garcia - Graduate Student, Charles Shapiro - Extension Soil Scientist—Crop Nutrition, Bijesh Maharjan - Extension Soil and Nutrient Management Specialist, Brian Krienke - Former Soils Extension Educator

Chart of N research treatments

January 8, 2018

Feasibility of Sensor-Based Nitrogen Fertigation Management in Corn

By Brian Krienke - Former Soils Extension Educator, Richard Ferguson - Extension Soil Fertility Specialist, Suat Irmak – Professor of Agricultural and Biological Engineering, Pennsylvania State University, Daran Rudnick - Former Extension Irrigation Management Specialist, Tim Shaver - Extension Nutrient Management Specialist, Charles Shapiro - Extension Soil Scientist—Crop Nutrition, Keith Glewen - Extension Educator Emeritus, Mohammed Naser - Graduate Student

Chart of residue required for different slopes

May 8, 2018

Crop Residue and High-Carbon Char: Potential Soil Conservation Tools

By Bijesh Maharjan - Extension Soil and Nutrient Management Specialist, Brian Krienke - Former Soils Extension Educator, Charles Wortmann - Emeritus Extension Soil and Nutrient Management Specialist, Charles Shapiro - Extension Soil Scientist—Crop Nutrition, Richard Ferguson - Extension Soil Fertility Specialist, Tim Shaver - Extension Nutrient Management Specialist

Land-applied manure

January 8, 2018

Adaptation of Canopy Sensor-Guided In-Season Nitrogen Application for Manured Fields

By Charles Wortmann - Emeritus Extension Soil and Nutrient Management Specialist, Tim Shaver - Extension Nutrient Management Specialist, Juan Pablo Garcia - Graduate Student, Charles Shapiro - Extension Soil Scientist—Crop Nutrition, Bijesh Maharjan - Extension Soil and Nutrient Management Specialist, Brian Krienke - Former Soils Extension Educator

Chart

January 8, 2018

Improved Use Efficiency of Applied Organic Nitrogen

By Charles Wortmann - Emeritus Extension Soil and Nutrient Management Specialist, Tim Shaver - Extension Nutrient Management Specialist, Juan Pablo Garcia - Graduate Student, Charles Shapiro - Extension Soil Scientist—Crop Nutrition, Bijesh Maharjan - Extension Soil and Nutrient Management Specialist, Brian Krienke - Former Soils Extension Educator

cropwatch graphic

January 8, 2018

Integrating Cover Crops into a Corn and Soybean Cropping System

By Katja Koehler-Cole - Research Assistant Professor in Agronomy and Horticulture, Chris Proctor - Weed Management Extension Educator, Angela Bastidas - Ph.D. Student in Agronomy, Roger Elmore - Emeritus Extension Cropping Systems Agronomist

Field photos of the three herbicide treatments tested.

May 11, 2018

Preemergence Herbicides Influence the Critical Period for Weed Removal in Roundup Ready Corn

By O. Adewale Osipitan - Post-Doctoral Researcher, Stevan Knezevic - Extension Weed Management Specialist

Windrowing forage wheat in south central Nebraska for processing into wheatlage. (Photos by Todd Whitney)

May 17, 2018

Wheat Forage Options and Considerations

By Todd Whitney - Extension Educator, Jenny Brhel - Extension Educator, Mary Drewnoski - Beef Systems Specialist, Bruce Anderson - Emeritus Extension Forage Specialist, Galen Erickson - Beef Feedlot Nutrition Specialist