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Agriculture MCQs

Agriculture MCQs are multiple-choice questions on crop production, soil, plant protection, livestock, food technology and farm economics. They suit agriculture graduates, students and candidates for Agriculture Officer, lecturer and research posts. Every question on MCQs360 comes with an instant answer, so you can test your understanding of each area and spot weak topics quickly.

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Question 11 Plant Pathology

In applying Koch’s postulates to a plant disease, which step comes first?

Correct answer A. The suspected pathogen must be found associated with every diseased plant

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About Agriculture MCQs

Agriculture is an applied science that brings together biology, chemistry, economics and engineering to grow crops and raise animals efficiently. MCQs in this subject range from definitions, such as what IPM stands for or what sericulture means, to technical points like the enzyme behind nitrogen fixation or the hydraulics of a rectangular channel. A good score needs both broad vocabulary and solid understanding of core processes.

The collection is grouped into ten areas: Agronomy, Soil Science, Entomology, Plant Pathology, Plant Breeding and Genetics, Horticulture, Animal Husbandry, Food Technology, Water Management and Agricultural Economics. Sample questions cover land capability classes, essential plant nutrients, chlorosis, lac and silk production, alternate bearing in fruit trees, toxic compounds in fodder crops and agriculture's share in the national income of developing countries.

Agriculture MCQs are central to recruitment for Agriculture Officer, Field Assistant and Agricultural Extension posts through public service commissions, and to lecturer and subject specialist tests. In India they underpin ICAR entrance exams and agriculture-related state recruitment, while Bangladesh uses them for agriculture cadre posts in BCS. Practising across all ten areas helps because papers rarely stay within one specialisation.

Key facts to remember

  • Nitrogen, phosphorus and potassium are the three primary macronutrients required by plants.
  • The enzyme nitrogenase carries out biological nitrogen fixation in microorganisms.
  • Rhizobium bacteria fix atmospheric nitrogen in the root nodules of leguminous plants.
  • Sericulture is the rearing of silkworms for the commercial production of silk.
  • Integrated Pest Management combines several control methods to keep pests below the economic injury level.
  • Chlorosis is the yellowing of leaves caused by a lack of chlorophyll.
  • Sugarcane is the main source of sugar produced in the world.
  • A soil pH below 7 is acidic, while a pH above 7 is alkaline.

Exams that include Agriculture MCQs

Pakistan

  • PPSC
  • FPSC
  • SPSC
  • KPPSC
  • BPSC
  • NTS
  • Lecturer tests

India

  • ICAR AIEEA
  • UGC NET
  • State PSC exams
  • Campus placements

Bangladesh

  • BCS
  • Government job tests
  • Bank job exams

How to prepare for Agriculture MCQs

  1. Make a table of essential plant nutrients with their deficiency symptoms, as these appear in soil science and agronomy papers alike.
  2. Learn the specific terms for animal and insect farming, such as sericulture, apiculture and lac culture, because they are frequently asked as definitions.
  3. Revise the scientists linked with plant breeding and genetics theories, including who proposed evolution through sudden large variations.
  4. Practise a few water management numericals on channel discharge and irrigation efficiency so formula questions do not catch you out.
  5. Study major crops region by region, noting their pests, diseases and toxic substances, to answer combined agronomy and plant protection questions.

Frequently asked questions

What are the most important topics in Agriculture MCQs?

The most tested topics are agronomy, soil science, entomology and plant pathology, followed by horticulture, plant breeding and agricultural economics. Questions on plant nutrients, pest management, crop diseases and farming terms like sericulture come up regularly. Animal husbandry, food technology and water management add further variety in officer-level papers.

Which exams ask Agriculture MCQs?

Agriculture MCQs appear in PPSC, SPSC, KPPSC and FPSC tests for Agriculture Officer and related posts in Pakistan, as well as lecturer tests. In India they feature in ICAR AIEEA, UGC NET agriculture subjects and state agriculture recruitment. In Bangladesh, BCS agriculture cadre and government job tests include them.

How many Agriculture MCQs are on MCQs360?

MCQs360 has more than 2,700 Agriculture MCQs covering ten areas, from agronomy and soil science to food technology and water management. Every question shows the correct answer instantly, and the practice is free with no sign-up, so you can revise one specialisation at a time or mix them all.

How should I prepare for Agriculture MCQs?

Begin with your degree notes in agronomy, soil science and plant protection, since these carry the most questions. Practise MCQs subtopic by subtopic, then switch to mixed sets to build recall across areas. Keep a glossary of agricultural terms and scientists, and revise it regularly because many questions test exact definitions.

What is Integrated Pest Management (IPM)?

Integrated Pest Management is an approach that combines biological, cultural, mechanical and chemical methods to keep pest numbers below the economic injury level. Rather than relying only on pesticides, it uses monitoring, resistant varieties, natural enemies and careful spraying. This reduces costs, protects beneficial insects and limits environmental harm.

What is biological nitrogen fixation?

Biological nitrogen fixation is the conversion of atmospheric nitrogen gas into ammonia by microorganisms, using the enzyme nitrogenase. Rhizobium bacteria in legume root nodules are the best-known example, while free-living bacteria and cyanobacteria also fix nitrogen. The process enriches soil fertility and reduces the need for nitrogen fertiliser.

Last reviewed October 2026