Daren Redfearn - Extension Forage Crop Residue Specialist

Daren Redfearn

faculty
Work Keim Hall (KEIM) 136
Lincoln NE 68583-0915
US
Work 402-472-2662 On campus, dial 2-2662

icon-academic-capEducation

  • Ph D, University of Nebraska-Lincoln, 1995
  • MS, University of Nebraska-Lincoln, 1992
  • BS, Texas Tech University, 1985

icon-business-chartResearch & Grants

  • Five-year Plan for the Beef Systems Initiative, Internal, August 2017
  • Enhance Animal Protein Crops/Cattle, Fdn for Food & Agriculture Research, July 2017
  • Soil Health Initiative, Dept of Agriculture-NRCS, September 2017
  • Dev Rsrch Ext Skills of Students, Dept of Agriculture-NIFA, March 2016

Faculty Bio

Student conducting research

Effect of Switchgrass Row Spacing on Inter-Seeded Legume Establishment

March 15, 2019
This project evaluated the effect of switchgrass row spacing on the establishment of Illinois bundleflower, partridge pea, alfalfa, white clover, and hairy vetch.

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Chart showing row spacing effects on switchgrass yields.

Effect of Row Spacing on Switchgrass Yield and Nutritive Value

March 14, 2019
This study was conducted from 2010 to 2015 to evaluate effects of row spacing on switchgrass forage yield. It compared two varieties: ‘Shawnee’ an upland ecotype, and ‘Kanlow x Summer HP1 NETO2 C1’, an experimental lowland ecotype later released as ‘Liberty’.

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Figure 1. Soil disturbance after disking and interseeding legumes.
Figure 1. Soil disturbance after disking and interseeding legumes.

Burning, Disking, and Spraying Consequences on Big Bluestem Forage Yield, Nutritive Value, and Native Legume Establishment

March 14, 2019
A two-year study evaluated establishment of two native legume species into five-year old established big bluestem pastures and compared seven treatments.

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Cattle grazing cover crops

Cover Crop Grazing: Impacts on Soils and Crop Yields

January 22, 2019
Results from a three-year study in rainfed and irrigated no-till cropping systems in Nebraska suggest that moderate cattle grazing of cover crops may not negatively impact soil properties and crop production.

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Field of cover crops

Native Warm-Season Grass Management and Planting Decisions for Alternative Forages

January 9, 2019
One of the most important drivers of productivity and cost effectiveness of annual forages is planting date. Having realistic planting date expectations is one key to proper species selection.

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Cattle grazing a corn field
Cows grazing corn residue may not remove as much organic material and as many nutrients as might be expected, but they will likely redistribute some nutrients in the field due to their traffic patterns.

Nutrient Removal by Cows Grazing Corn Residue

November 5, 2018
Nutrient removal by cows grazing corn residue may not be as much as you might think. Here a livestock and a forage specialist break down the numbers and look at removal rates for organic matter and minerals.

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Cattle grazing corn stalks
Cattle grazing corn stalks

The Crop Residue Exchange Links Growers and Grazers

October 10, 2018
The Crop Residue Exchange is an interactive online tool to help crop and cattle producers connect and develop mutually beneficial agreements to use crop residue for grazing. A new feature allows producers to also list forage cover crops for grazing.

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Hailed corn
Figure 1. Severely hail-damaged corn field where the ears are the top-most part of the plant. Following severe hail damage, cover crops can offer a variety of benefits from using available nitrogen to aiding weed control. (Photos by Jenny Rees)

Cover Crop Considerations Following Late-Season Hail Storms

August 24, 2018
Cover crops offer a number of benefits in fields sustaining late-season hail damage, but should be planted soon to provide sufficient time for growth. A guide covers various cover crops and their use, seeding rates, and seeding method.

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