Land Preparation and Soil Tillage: JAMB Agricultural Science Questions, Answers & Notes

What Land Preparation and Soil Tillage covers in the JAMB Agricultural Science syllabus

Land preparation gets land ready for planting through tillage (working the soil). The basic operations, in order, are clearing (removing bush and trees), ploughing (turning and loosening the soil), harrowing (breaking clods into a fine tilth) and ridging or mound-making (raised beds/mounds that aid drainage and suit root/tuber crops like yam and cassava). Tillage may be conventional/complete (thorough cultivation of the whole land) or minimum/zero (least disturbance — reduces erosion, conserves moisture and saves cost). Simple tools (cutlass, hoe) suit small farms; tractors with ploughs suit large fields. Burning vegetation and over-tillage are discouraged as they destroy organic matter and expose soil to erosion. The aim is a good seedbed (good tilth) with proper aeration and root penetration.

For Land Preparation and Soil Tillage, JAMB expects you to be able to:

• Describe land-preparation operations: clearing, ploughing, harrowing, ridging
• Distinguish conventional, minimum and zero tillage and their pros/cons
• Explain tilth, tools and the purpose of good land preparation

Key facts & revision notes: Land Preparation and Soil Tillage

These are the recurring points our Land Preparation and Soil Tillage questions test — revise them until each feels automatic, then practise the questions above to lock them in.

• Land preparation gets the land ready for planting crops.
• Tillage is the working/cultivation of the soil to prepare a good seedbed.
• Clearing removes bush, trees and existing vegetation from the land.
• Ploughing turns over and loosens the soil to prepare it for planting.
• Harrowing breaks large soil clods into a fine tilth after ploughing.
• Ridging makes raised ridges/beds that aid drainage, root growth and some crops (e.g.
• Conventional (complete) tillage cultivates the whole land thoroughly (clearing, ploughing, harrowing).
• Minimum/zero tillage disturbs the soil as little as possible to reduce erosion and cost.
• Zero/minimum tillage reduces soil erosion, conserves moisture and saves cost and labour.
• Good land preparation improves aeration, water infiltration and root penetration.
• Simple hand tools like the cutlass and hoe are used for clearing and weeding.
• A tractor fitted with a plough is used to plough large fields quickly.
• Ridges suit tuber/root crops like yam and cassava, aiding tuber development and drainage.
• Burning destroys organic matter, humus and beneficial soil organisms, reducing fertility.
• Good tilth is the fine, crumbly condition of soil ideal for sowing seeds.
• Deep ploughing benefits deep-rooted crops by loosening the soil deeper.
• Over-tillage can break down soil structure and expose it to erosion.
• Making mounds (heaps) is used for growing yam in some areas, aiding tuber development.
• The usual order is clearing → ploughing → harrowing → ridging (then planting).
• The purpose of land preparation and tillage is to create a good seedbed for healthy crop growth.

Worked examples

Three Land Preparation and Soil Tillage questions with the answer and a short explanation, so you can see how the topic is set before you practise the full set.

How Land Preparation and Soil Tillage is tested in JAMB Agricultural Science

Our Land Preparation and Soil Tillage bank holds 20 questions (2 easy, 8 medium, 10 hard). JAMB Agricultural Science typically returns to Land Preparation and Soil Tillage 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 Land Preparation and Soil Tillage 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 Land Preparation and Soil Tillage. 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 Land Preparation and Soil Tillage is repeated timed practice, so use the button above until the recurring patterns feel automatic.

Common mistakes to avoid in Land Preparation and Soil Tillage

The errors that cost marks on Land Preparation and Soil Tillage 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 Land Preparation and Soil Tillage actively by answering questions, not just by re-reading notes — recall under time is what the exam rewards.

Frequently asked questions

Is Land Preparation and Soil Tillage part of the JAMB Agricultural Science syllabus?

Yes. Land Preparation and Soil Tillage is a recognised topic in the JAMB Agricultural Science syllabus, covering describe land-preparation operations: clearing, ploughing, harrowing, ridging. You should be able to recall its key facts and apply them to multiple-choice questions.

How many Land Preparation and Soil Tillage questions can I practise on Belmadeng?

There are 20 original, JAMB-standard Land Preparation and Soil Tillage 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 Land Preparation and Soil Tillage?

Land preparation gets land ready for planting through tillage (working the soil). The basic operations, in order, are clearing (removing bush and trees), ploughing (turning and loosening the soil), harrowing (breaking clods into a fine tilth) and ridging or mound-making (raised beds/mounds that aid …

How do I answer Land Preparation and Soil Tillage questions quickly in JAMB?

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

Are these JAMB Agricultural Science Land Preparation and Soil Tillage 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 Land Preparation and Soil Tillage questions free without signing up?

Right here — tap “Start Land Preparation and Soil Tillage 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.