Farm Inputs: JAMB Agricultural Science Questions, Answers & Notes

What Farm Inputs covers in the JAMB Agricultural Science syllabus

Farm inputs are the resources used in agricultural production. They include planting materials (seeds, seedlings — improved seeds give higher yield and disease resistance), agrochemicals (fertilisers, herbicides for weeds, insecticides for insect pests, fungicides for fungal diseases), labour (human effort), capital (money) and machinery/mechanical inputs (tractors, ploughs); animal production also needs feed and water. Fertilisers are organic manure (natural — dung, compost) or inorganic/chemical (manufactured, e.g. NPK supplying nitrogen for leafy growth, phosphorus for roots/seeds, potassium). Improved inputs raise output and yield, but overusing chemical fertilisers can degrade soil and pollute water. Inputs are the materials that go into production, distinct from the outputs/products harvested for sale.

For Farm Inputs, JAMB expects you to be able to:

• Identify farm inputs: planting materials, agrochemicals, labour, capital, machinery
• Distinguish organic manure and inorganic (NPK) fertilisers and their nutrients
• Explain the effects and importance of proper input use

Key facts & revision notes: Farm Inputs

These are the recurring points our Farm Inputs questions test — revise them until each feels automatic, then practise the questions above to lock them in.

• Farm inputs are the resources and materials used to carry out agricultural production.
• Seeds and seedlings are planting-material inputs used to establish crops.
• Fertilisers are substances added to the soil to supply plant nutrients.
• Herbicides are chemicals used to control/kill weeds.
• Insecticides are chemicals used to control/kill insect pests.
• Fungicides are chemicals used to control fungal (crop) diseases.
• Organic manure is made from natural materials (dung, compost, plant remains).
• Inorganic (chemical) fertilisers are manufactured, e.g.
• NPK supplies nitrogen (N), phosphorus (P) and potassium (K), the three major plant nutrients.
• Labour (human effort) is a key farm input.
• Capital (money and assets) is used to acquire other farm inputs.
• Farm machinery (tractors, ploughs) is a mechanical/capital input.
• Agrochemicals include fertilisers, herbicides, insecticides and other farm chemicals.
• Improved (certified) seeds give higher yield, better quality and disease resistance.
• Excessive use of chemical fertilisers can degrade soil and pollute water.
• Nitrogen fertilisers promote leafy/vegetative growth (leaves and stems).
• Phosphorus promotes root growth and seed/fruit development.
• Feed and water are essential inputs in animal (livestock) production.
• Proper use of farm inputs increases agricultural output and yield.
• Harvested maize for sale is an output/product, not an input; seeds, fertiliser and labour are inputs.

Worked examples

Three Farm Inputs questions with the answer and a short explanation, so you can see how the topic is set before you practise the full set.

How Farm Inputs is tested in JAMB Agricultural Science

Our Farm Inputs bank holds 20 questions (16 medium, 4 hard). JAMB Agricultural Science typically returns to Farm Inputs year after year, so steady practice on this topic is high-value revision. Questions are multiple-choice with four options, and at UTME pace you get roughly 40 seconds each — which is why timed practice matters.

How to answer Farm Inputs questions

Work the stem first and predict the answer before you look at the options; then eliminate the ones that contradict the key facts above. Watch for “which is not…”, “all of the above” and “except” style stems, which are where rushed candidates lose easy marks on Farm Inputs. If a calculation or a precise definition is involved, work it from first principles rather than guessing from a half-remembered rule. When two options look right, re-read the stem for the qualifier that separates them — JAMB rarely repeats an option by accident. If you are still unsure, eliminate the two weakest choices to lift your odds, flag the question, and move on; never burn a full minute on one Agricultural Science item when the exam gives you about forty seconds each. Then come back to flagged questions with whatever time remains. The single most reliable way to get faster at Farm Inputs is repeated timed practice, so use the button above until the recurring patterns feel automatic.

Common mistakes to avoid in Farm Inputs

The errors that cost marks on Farm Inputs are usually careless rather than conceptual: misreading a negative stem, confusing two similar terms, or rushing a definition you actually know. Candidates also over-rely on “expo” and last-minute cramming instead of understanding the topic — which fails the moment JAMB rephrases a familiar idea. Treat every option as a claim to be checked against the facts above, keep your working tidy for any calculation, and don’t change a considered answer on a hunch. Above all, revise Farm Inputs actively by answering questions, not just by re-reading notes — recall under time is what the exam rewards.

Frequently asked questions

Is Farm Inputs part of the JAMB Agricultural Science syllabus?

Yes. Farm Inputs is a recognised topic in the JAMB Agricultural Science syllabus, covering identify farm inputs: planting materials, agrochemicals, labour, capital, machinery. You should be able to recall its key facts and apply them to multiple-choice questions.

How many Farm Inputs questions can I practise on Belmadeng?

There are 20 original, JAMB-standard Farm Inputs questions in our free bank, each with the correct answer and a worked explanation. You can practise them untimed or as a timed test.

What are the most important points to know about Farm Inputs?

Farm inputs are the resources used in agricultural production. They include planting materials (seeds, seedlings — improved seeds give higher yield and disease resistance), agrochemicals (fertilisers, herbicides for weeds, insecticides for insect pests, fungicides for fungal diseases), labour (human…

How do I answer Farm Inputs questions quickly in JAMB?

Read the stem carefully, eliminate clearly wrong options, and match the remaining choices to the key facts for Farm Inputs. Practising timed Farm Inputs questions builds the speed you need for UTME's pace of about 40 seconds per question.

Are these JAMB Agricultural Science Farm Inputs questions past questions or original?

They are original questions written to JAMB (UTME) standard and mapped to the official syllabus — not reproduced past papers. This keeps them legal to use freely while closely mirroring how the real exam tests the topic.

Where can I practise Farm Inputs questions free without signing up?

Right here — tap “Start Farm Inputs practice” on this page to begin instantly. Belmadeng's CBT practice is completely free and needs no sign-up, download or subscription.

About these questions: original, JAMB-standard items written from the official UTME Agricultural Science syllabus (last reviewed 2026-09-18). Belmadeng is an independent study platform and is not affiliated with JAMB. Spotted an error? Use the report link.