CCEA GCSE Agriculture and Land Use: Soils and plant production overview
An overview of the soils and plant production module of CCEA GCSE Agriculture and Land Use (Unit 1), mapping soil composition and types, soil nutrients and the nitrogen cycle, protected cultivation and hydroponics, germination and plant structure, photosynthesis and life cycles, and flowers and pollination, and how they are examined on the Unit 1 paper.
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The first module of CCEA GCSE Agriculture and Land Use builds the science of soils and plants that the rest of Unit 1 relies on. It is examined on the Unit 1 Soils, Crops and Habitats written paper. This page maps the topics and links to a focused answer page for each one.
What this module covers
- Composition of soils
- The four soil components, the physical characteristics of clay, sand, peat and loam, Northern Ireland's uplands and lowlands, the soil profile, particle size and drainage, and soil pH and crops. Start with Composition of soils.
- Soil nutrients and the nitrogen cycle
- The roles of nitrogen, phosphorus and potassium, reading an NPK fertiliser label, the nitrogen cycle (fixation, nitrification and denitrification), and keeping soil fertile under intensive farming. See Soil nutrients and the nitrogen cycle.
- Protected cultivation and hydroponics
- Glasshouses and polytunnels and their economic importance, the factors controlled in a greenhouse, the pros and cons of hydroponics, and the benefits of composting. See Protected cultivation and hydroponics.
- Plant biology and germination
- The conditions needed for germination, the process with the radicle, plumule, root hairs and cotyledons, and the functions of root, stem and leaves. See Plant biology and germination.
- Photosynthesis and plant life cycles
- The word equation, investigating light and chlorophyll, the importance of photosynthesis and rainforests, and annual, biennial and perennial life cycles. See Photosynthesis and plant life cycles.
- Flowers, pollination and fertilisation
- The parts of a flower and their functions, wind versus insect pollination, the process of pollination and fertilisation, and the role of bees. See Flowers, pollination and fertilisation.
How it is examined
These topics appear on Unit 1 Soils, Crops and Habitats. Expect structured questions on soil types and drainage, NPK and the nitrogen cycle, the conditions for germination, the photosynthesis word equation and starch-test method, and a compare-and-contrast question on wind and insect pollination, plus data questions on practical results.
How to study it
Learn the soil components and types first, then carry the science into the later topics: NPK and the nitrogen cycle for fertility, the conditions and named parts for germination, the photosynthesis equation and its investigations, and the flower parts with the wind-versus-insect contrast. Drill the practical methods (drainage, soil pH, germination and the starch test), then practise CCEA past papers and finish with the module quiz.
Sources & how we know this
- CCEA GCSE Agriculture and Land Use specification (2019) — CCEA (2019)