| Crabgrass for Forage: Management from the 1990s/Crabgrass Forage Yields as Influenced by Forage Harvesting Regimes |
|
||||
Crabgrass: A Synopsis
Introduction
History
Species
Crabgrass as Forage
Using Crabgrass
Crabgrass Cultivars
Establishment
Tillage and No-Tillage Management
Soil Fertility Considerations
Forage Production Potential
Stock Performance
Use
Volunteer Stand Management
Adaptation
Literature Available
Development, Naming, and Release of the "Red River" Crabgrass Variety
Abstract
Introduction
History of Varietal Development
Methods of Research and Development
Results
Official Naming and Release
Seed Availability
Literature Cited
'Red River' Crabgrass: Why and How it Happened
Historical Prespective
Species and Ecotypes
There is more to a Grass than Yield
Area of Use
More Information is Available
Official Seed Release Summary
Crabgrass Produces Top Quality Warm Season Hay
Crabgrass is the Winter Pasture for the Summer
Crabgrass for High Quality, Highh Production, Warm-Season Forage
Introduction
History of Use and Geographic Adaptation
Specific Adaptation
Production Input Practices
Forage Quality Aspects
Examples of Crabgrass Forage Uses
Forage and Stock Yields
Crabgrass Variety Development and Literature
Literature Cited
Average Daily Gain On 'Red River' Crabgrass
Crabgrass as a Variable and Flexible Forage Crop
History of ADG on Crabgrass
Management of This Trial
Forage Production Management
A Brief History of Production on This Unit
Livestock Management
Grazing Management
Weather Considerations
Results
Grazing Management Results
The Mistakes We Made
Crabgrass Forage Yields as Influenced by Forage Harvesting Regimes
Abstract
Introduction
Procedures
Results and Discussion
Double Crop Winter Pastures by Using Improved Crabgrass
Switching from Winter Pasture to Crabgrass
Broadcasting Crabgrass Seed into Annual Winter Pastures to Start a Crabgrass-Winter Pasture Double Crop
Fall Planting Rye into Crabgrass in a Low-Till Approach
Summer Annual/Winter Annual Rotation of Grazing and Forage Systems
Improving Overall Forage Quality by Adding Higher Quality Warm-Season Grasses to the Bermudagrass Sward
Abstract
Introduction
Materials and Methods
Results and Discussion
Bermudagrass or Bahiagrass and Crabgrass Mixtures in Practice
Managing for Volunteer Stands in Crabgrass Hay Meadows
Emergence Depth of 'Red River' Crabgrass in Volunteer Stands
Introduction
Methods and Materials
Results and Discussion
Practical Application
Literature Cited
Planting Rye in 'Red River' Crabgrass
Managing 'Red River' Crabgrass for Upper Level Forage and Beef Yield
Materials and Methods
Results and Discussion
'Red River' Crabgrass in Grazier Uses
Summary
The Effect of Seeding Rates on First-Season Crabgrass Development
Material and Methods
Results and Discussion
Summary of the Research
Summary
Feed Value and Management Characteristics of 'Red River' Crabgrass Seed for Planting and Volunteer Stands
'Red River' Crabgrass Forage Production with Irrigation and Fertilization
| Table 7. Simulated controlled rotational grazing effects | ||||||
| Range of Recovery Period1 | Forage Recovery Period2 | Rel. Forage % (Lbs./Ac.) | Est. TDN | Est. Lbs. of Beef/Ac.3 | Beef Produced4 ($/Lb.) | Relative % Cost/Lb. of Beef |
| Harvested five times at 1" for every 5" of growth (average 35-day RP) | 12 to 49 | 5994 | 75 | 562 | 0.077 | 100 |
| Harvested four times at 3" in preboot to head stage (average 43-day RP) | 19 to 87 | 7637 | 70 | 668 | 0.064 | 83 |
| Harvested three times at 3" at seed ripe stage (average 58-day RP) | 19 to 102 | 8830 | 65 | 717 | 0.060 | 78 |
| 1 Average recovery period (RP) from stand emergence to final harvest. 2 Estimated pounds of forage per acre from two-year average. 3 Pounds of beef per acre: pounds of forage produced times total digestible nutrients divided by 8.0 pounds of total digestible nutrients per pound of beef. 4 Cost per pound of beef based on starting with a 350-pound stocker with average daily gain of 2.0 pounds and grazing for 120 days with an average intake of 3%. Thus, daily forage intake was 14.1 pounds per head and stocker grazing days per acre were 425, 541, and 626, respectively. Actual direct pasture cost of production was $43 per acre for tillage, weed control, fertilization, and land rent. | ||||||
© 1997-2008 by The Samuel Roberts Noble Foundation, Inc.