a. Outline four steps involved in the planting of cassava stem cuttings b. State three...
a. Outline four steps involved in the planting of cassava stem cuttings
b. State three uses of cassava tubers
c. If yam is cultivated at a spacing of 100 cm by 100 cm on 1.5 hectares of farmland and each yam tuber weighs an average of 3.5 kg after harvesting, calculate the:
i. expected number of yam plants on the farmland
ii. total weight of yam tubers harvested in kilogramme
d. Distinguish between diet and ration in animal nutrition
Explanation
a.
-Collect healthy cassava stem cuttings of about 25cm long each with a good number of buds/nodes
-Plant the stem cuttings in slanting position or at an angle of 45°
-Bury about 2/3 of the stem cuttings in the soil with the buds facing upwards
-Observe the buds above the soil surface which develop new shoots while the buds buried in the soil develop new roots
b.
-Can be processed into Garri/flakes/chips/flour/tapioca/consumed as food
-Cassava flour is used in baking
-Cassava meal/chips/peels are used as animal feed
-Alcohol can be extracted from the tubers
-Can be processed into starch
-Dextrose can be extracted from the tuber/pharmaceutical uses
-Can be processed into adhesive/glue
ci.
Spacing = 100 cm x 100 cm
1 m = 100 cm
Spacing =1m x 1m =1m2.
Area of farmland = 1.5 ha
1 ha = 10,000 m2
Area of farmland = 1.5 x 10,000 m2
15,000 m2
Expected number of yam plants on the farmland
= Area of farmland/Spacing
15,000 m2 / 1 m2
=15,000 yam plants
cii. Average weight of one yam tuber = 3.5 kg
Total weight of yam tubers harvested 3.5 kg x 15,000=52,500 kg
d. Diet is the amount of feed regularly given or consumed by a farm animal
While
Ration is the amount of feed that is given to a farm animal daily/over a 24 hour period