Question

2(a) Explain each of the following cropping systems:
(i) monocropping; (ii) mixed cropping; (iii) mixed farming; (iv) crop rotation
(b) A crop farmer observed that the leaves of the orange plants on the farm turned purple with most of the immature fruits dropping.
(i) Identify the nutrient deficient in the orange plants.
(ii) List four inorganic fertilizers that could correct the nutrient deficiency observed in the orange plants.
(c) Name five materials that could be used to attract bees to a new beehive.

Accepted Answer

(a)(i) Monocropping: the practice of growing a single crop year after year on the same land.
(ii) Mixed cropping: a practice that involves planting two or more types of crops simultaneously on the same piece of land.
(iii) Mixed farming: a type of farming that involves both the growing of crops and the raising of livestock.
(iv) Crop rotation: the practice of growing different crops in succession on the same land, in a regular recurring sequence.

(b)(i) The nutrient deficient is Phosphorus. (NB: Phosphorus deficiency results in a reddish-purple discolouration of leaves, and premature fall of leaves, flower buds and fruits.)
(ii) Inorganic fertilizers to correct phosphorus deficiency: Single Superphosphate (SSP); Triple Superphosphate (TSP); Monoammonium phosphate (MAP); Diammonium phosphate (DAP).

(c) Materials to attract bees to a new beehive: beeswax; granulated sugar; lavender; lime; sweet juices/lemon grass.

WAEC Agricultural Science 2022 Theory — Question 2

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