Agricultural-Science Exam Past Questions and Answers | JAMB, WAEC and NECO

Agricultural science studies farming practices, including soil cultivation for growing crops and raising animals for food, wool, and other products.

• Question 181:

  The soil nutrient which is important as a constituent of plant proteins and hormones is

  Options:
  A) calcium
  B) sulphur
  C) iron
  D) potassium
  Show Answer
  The correct answer is B .
• Question 182:

  A biotic factor influencing agricultural production is

  Options:
  A) rainfall
  B) predator
  C) soil structure
  D) wind
  Show Answer
  The correct answer is B .
• Question 183:

  Fertilizer application in maize should be completed before

  Options:
  A) Tasseling
  B) Silking
  C) Riponing
  D) Knee high stage
  Show Answer
  The correct answer is D .
• Question 184:

  Which of the following is a powerful and expensive multipurpose motor vehicle used for lifting or pulling farm implements?

  Options:
  A) Bulldozer
  B) Tractor
  C) Sheller
  D) Incubator
  Show Answer
  The correct answer is B .
• Question 185:

  One major difference between disc plough and disc harrow is

  Options:
  A) Disc plough is used to create wider ridges on the field than disc Harrow
  B) A disc plough can have up to 54 discs on it at once whereas a disc harrow can have up to 6 disc
  C) Disc plough is used to tilled the disc harrowed land
  D) The disc part of plough is notched while that of harrow is round
  Show Answer
  The correct answer is A .
• Question 186: Agriculture contributes to the economy of West African Countries through the following means except Options:
  A) reduction of poverty through job creation
  B) supply of armaments for territorial defence
  C) provision of foreign exchange
  D) supply of raw materials to industries
  Show Answer
  The correct answer is B .
• Question 187:

  A variety of oil palm is

  Options:
  A) Amelonado
  B) Acuminata
  C) Tenera
  D) Trinitario
  Show Answer
  The correct answer is C .
• Question 188:

  Forages that are chopped green and fed directly to livestock are referred to as

  Options:
  A) hay
  B) silage
  C) fodder
  D) soilage.
  Show Answer
  The correct answer is D .
• Question 189:

  What is the primary characteristic of weeds in agriculture?

  Options:
  A) They are beneficial for crop growth
  B) They compete with crops for resources
  C) They are cultivated intentionally by farmers
  D) They do not require any maintenance
  Show Answer
  The correct answer is B .
• Question 190: The process of grafting in crop production involves Options:
  A) the fusion of gametes of two crops
  B) indicating rooting from stems
  C) the trandfer of a bud from one crop to another
  D) the joining of two parts from related crops
  Show Answer
  The correct answer is D .