Agricultural Science JAMB, WAEC, NECO AND NABTEB Official Past Questions

(a) ldentify specimens G, H and I.
(b) Give two observable physical properties of each.
(c) State two main nutrients supplied by each of the specimens H and l.
(d) State two methods of application of specimen C on the field.

(a) State four effects of specimen E on farm animals
(b) Name the primary and intermediate host of specimen E,
(c) State three adaptive features of specimen F which enable it to survive in Its host
(d) State three control measures of each of specimens E and F in livestock management

(a) State each of the disease conditions observed on specimens C and D and their causative agents.
(b) Explain the mode of transmission of the diseases on each of specimens C and D. (C) State two effects of each of the diseases on specimens C and D and two control measures of each.
(d) Name two other diseases of specimen D.

(a) Name two farm animals possessing specimen A.
(b) State two methods of removing specimen A from the animals possessing it.
(c) Mention three methods of rearing specimen B.
(d) State six characteristic features which would make a farmer decide to cull specimen B.

The table below illustrates a basic economic principle in agriculture. Use it to answer questions 6(a) to 6(a)(iii)

(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.

(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.

(a) Complete the table below

(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 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) 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) State five reasons why the government should enact laws to regulate the use of land for agriculture.
(b) A cocoa farmer has just acquired 10 hectares of farmland and is considering the type of farm power to use for tillage operations. (i) Advise the farmer on the most appropriate type of farm power to use. (ii) State four reasons for the answer in (b)(i).
(c) Mention one function of each of the following parts of a seed planter: (i) seed tube; (ii) furrow opener, (iii) hopper (iv) seed metering device (v) furrow wheel
(d) List three machines used in processing crops after harvesting.

The gross profit of a farm business is the farm’s

The table below illustrates a farm record for Goodness Farms in the year 1970. Use it to answer this question.

If all the unsold eggs were later sold on 7th June at ₦5.00 per crate, calculate the income from unsold eggs. (Assuming a crate = 30 eggs)

The table below illustrates a farm record for Goodness Farms in the year 1970. Use it to answer this question.

Calculate the total amount of eggs sold on the farm.

The table below illustrates a farm record for Goodness Farms in the year 1970. Use it to answer this question.

The table illustrates

In farming enterprise, short term loans are used to

The correct order of arrangement of ration for piglets from day old is

Salt licks are provided for grazing animals to

If 200 layers require 25 kg of layer mash per day, calculate the quantity of feed required by 1,000 layers per day.

Which of the following statements about silage are true?
I. It has a laxative effect
II. is acidic in reaction.
III. has a strong aroma when well prepared

The main reason for castrating farm animals is to

Which of the following farm animals will browse more on plants in a pasture?