(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) ldentify 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.
(a) Explain four causes of damage to maize during storage.
(b) Two heterozygous tall plants, Tt, were crossed in an experiment. Using a genetic diagram, (i) show the possible offspring that could result from the cross. (ii) determine the:
1. genotypic ratio of the offspring:
2. phenotypic ratio of the offspring.
(c) State Mendel's first and second laws of inheritance.
(d) Mention two forage grasses.
(a) Complete the table below
| Crop | Botanical name | Classification based on use | Method of propagate |
| Onion | |||
| Ginger | |||
| Jute |
(b) A poultry farmer plans to rear broilers in a deep litter house measuring 36m long and 10m wide. If a floor space of 0.36m² per adult chicken is recommended for broiler production, calculate the number of broilers that the farmer can rear.
(c) State five advantages of introducing legumes in a pasture
(a) Explain each of the following terms as used in animal nutrition: (i) balanced diet; (ii) maintenance ration; (iii) production ration; (iv) malnutrition.
(b) State six effects of malnutrition on farm animals.
(c) Mention four nursery practices in the production of tomatoes.
The table below illustrates a basic economic principle in agriculture. Use it to answer questions 6(a) to 6(a)(iii)
| Quality of fertilizer used (bag | Tomato yield (kg) |
| 0 | 2 |
| 2 | 6 |
| 4 | 9 |
| 6 | 11 |
| 8 | 10 |
| 10 | 5 |
| 12 | 4 |
(a)(i) On the graph sheet provided, plot a graph showing the relationship between fertilizer used and tomato yield. Use a scale of 2 cm to 2 units on the x-axis and 2 cm to 2 units on the y-axis.
(ii) Describe the relationship between the fertilizer used and tomato yield.
(iii) Suggest the most appropriate quantity of fertilizer to be applied on the tomato farm.
(b) State three effects of subsidy withdrawal on agricultural production.
(c) List four print media that could be used to disseminate information about a new variety of maize to farmers.
(d) Name two insect pests each of the following crops: (i) maize; (ii) orange.
