GACE Agriculture (709) case studies
GACE Agriculture (709) · Put your knowledge to work in context.
The GACE Agriculture (709) assessment is the Georgia content-area test used within the certification pathway for educators who want to teach agricultural education in Georgia schools. It is intended for candidates preparing to teach agriculture at the secondary level, including those coming through a traditional teacher-preparation program and those entering with a strong agricultural industry or academic background. The GACE Agriculture (709) case studies are 5 cases and about 2,776 words.
1Interpreting a Variable-Rate Seeding Trial
A 160-acre no-till corn field has uniform soil type but a gentle slope and a history of variable phosphorus fertility. The farmer wants to decide between 28,000 and 34,000 seeds per acre.
619 words, about 3 min2Low Pregnancy Rate in a Spring-Calving Cow Herd
A 120-head commercial cow-calf herd calves in March and April on fescue pasture. At pregnancy check, 94 of 120 cows (78%) are pregnant after a 75-day breeding season, and 14 of 22 replacement heifers are pregnant.
567 words, about 3 min3Tomato Chlorosis in a High Tunnel
In a 30- by 96-ft high tunnel, tomato plants are grown in raised beds with drip irrigation. The soil test shows pH 7.8, Mehlich 3 phosphorus 95 ppm, potassium 210 ppm, calcium 3,200 ppm, magnesium 320 ppm, and DTPA iron 4.0 ppm.
522 words, about 3 min4Custom Harvest Versus Combine Ownership
A 900-acre corn-soybean farm in the Coastal Plain owns no combine. A custom operator charges 42 per acre and has reliably arrived within the optimum harvest window.
531 words, about 3 min5Winter Manure Application on a High-Phosphorus Field
A 150-cow dairy plans to apply lagoon manure to a 40-acre field in late December. The field has a 6% slope, a 150-ft buffer to a perennial stream, and is currently covered by 4 inches of snow; soil temperature is 35 degrees F.
537 words, about 3 min