BGCSE Agricultural Science 1517 case studies
BGCSE Agricultural Science 1517 · Put your knowledge to work in context.
BGCSE Agricultural Science is a senior secondary subject examination taken at the end of the two-year BGCSE programme in Botswana. It suits learners who are considering further study in agriculture, animal science, horticulture or natural resource management, and those moving towards farm work, agribusiness or extension. The BGCSE Agricultural Science 1517 case studies are 5 cases and about 3,856 words.
1Liming a Two-Block Field When the Money Will Not Stretch
Mrs Kgosi farms 1.6 ha in two blocks. Block A (0.9 ha) is a sandy loam on a gentle slope; Block B (0.7 ha) is a flat clay loam that stands under water for two to three days after heavy rain and shows grey mottles 30 cm down.
864 words, about 4 min2Maize Population, Fertiliser Bags and a Wet Forecast
Mr Banda plants 2 ha of maize on a sandy loam with 1.0% organic matter and 700 mm annual rainfall. He uses rows 0.9 m apart and 0.5 m between stations with one plant per station, and harvested 2.8 t/ha last season against a potential of 6 t/ha.
861 words, about 4 min3Bloody Droppings in a Broiler House: Treat and Hold, or Sell Now?
Mr Phiri placed 1,200 broiler chicks in one house. On day 26 he finds 8 dead birds in 24 hours (normally 2 to 3), feed intake down 15%, wet caked litter under the drinkers, and birds huddled with ruffled feathers.
592 words, about 3 min4Allocating Three Hectares Between Tomato and Cabbage
Mr Dube has 3 ha of irrigated land, 4,000 of working capital and family labour equivalent to 1,400 person-days for the season. Fixed costs are 1,800 whatever he grows.
637 words, about 3 min5Aphid Hotspot, Natural Enemies and a Knapsack
Mrs Moyo grows 0.8 ha of cabbage, now six weeks from transplant and three weeks from harvest. She scouts 40 plants: the field average is 8 aphids per outer leaf, but the four rows on the windward edge average 45 aphids per leaf with honeydew and sooty mould.
902 words, about 5 min