I don't know how to complete the assignment or answer the questions and my professor isn't helping
AGN370 Forages Name:
Forage/Grazing Stick Estimates
In this exercise you will estimate the quantity of forage available in a paddock. Use your textbook and notes to make your decisions.
Carrington
You want to renovate this pasture to a novel endophyte tall fescue + legume pasture. Explain what you will need and describe your goals. See attached soil test results.
To renovate the pasture you must destroy the existing stand, figure out forages for spring and fall seedings, also prevent seedhead production with the existing infected stand of toxic endophyte.
Field size estimate: ___________________ ft2 ÷ _________ft2/A = _____ acres
Field limitations or problems? (e.g. slope, wet areas, etc.).
What are your recommended (see Southern Forages, table 12.1):
Seeding rate
Seeding date
Seed bed preparation
Amendments (one time vs annual?)
Anticipated problems/solutions
Use the formula below to estimate the number of days you could graze four 600 lb steers (i.e. “stockers”) on this paddock. Assume you have 8 pastures (paddocks) of similar productivity.
Days = Total lbs Forage/Ac x Ac x % Grazing Efficiency
Avg animal Wt. x intake rate in % Body Wt. x animal number
NRCS/Missouri Forage and Grasslands Council Grazing Stick
Formulas:
Days on paddock = Total lbs Forage/Ac X Ac X % Grazing Efficiency
Animal Wt. X intake rate in % Body Wt. X animal number
Animal Number = Total lbs forage/Ac X Ac X % Grazing Efficiency
Animal Wt. X Intake rate in % Body Wt. X days
Data:
Grazing Efficiency (%)
Continuous | 30% |
4 pasture | 35 |
8 pasture | 50 |
12 pasture | 65 |
24+ pasture | 75 |
Forage dry matter intake rate in % of Body Weight
Dry Cow | 2 |
Lactating Cow | 3-4 |
Dairy Cow | 2.5-3.5 + grain |
Beef Stocker | 2.5-3.5 |
Horse | 2-3 + grain |
Sheep | 3.5-4 |
Estimated dry matter in pounds per inch of plant height
Stand Condition
| Fair (<75% cover) | Good (75-90% cover) | Excellent (>90% cover) |
Bermudagrass | 100-250 | 250-400 | 400-550 |
Caucasian bluestem | 100-200 | 200-300 | 300-400 |
Native Warm Season | 50-100 | 100-200 | 200-300 |
Tall fescue + N | 150-250 | 250-350 | 350-450 |
Tall fescue + legumes | 100-200 | 200-300 | 300-400 |
Red clover or Alfalfa | 150-200 | 200-250 | 250-300 |
Orchardgrass + legumes | 100-200 | 200-300 | 300-400 |
Mixed pasture | 150-250 | 250-350 | 350-450 |