Leaving Cert Agricultural Science, Essential Revision Notes
Ordinary and Higher Level courses
- The formation of soils.
- Principal rock groups.
- Weathering of rocks.
- Origin of soils: glaciation, derived soils, soils formed in situ, formation of peats.
- Size of particles as determined by mechanical analysis. Classification of soils.
- Use of geological maps.
- Map study of soils in Ireland.
- Local soil surveys.
- Physical properties of soils.
- Soil structure; soil air; soil density; soil temperature; soil water and soil water control.
- Principles of soil cultivation with reference to tillage crops and grassland.
- Chemical properties of soils.
- Colloidal properties, pH and flocculation in relation to clay fraction and humus.
- Base exchange.
- Major and minor elements. Fertilisers and liming.
- Living organisms and their effects.
- Macro and micro organisms. Interdependence of animals and plants.
- Decomposition of organic matter; carbon and nitrogen cycles.
- Improving soil fertility.
The General Structure and Function of Plants
- Elementary structure and life cycle of a bacterium, mould, fern, pine and flowering plant.
- The plant cell – types of cells in different plant tissues as seen in roots, stems, leaves.
- Cell division – mitosis, meiosis.
- Parts of the flowering plant – function of each part.
- The flower and seed production.
- Structure of seed – monocot and dicot.
- Germination and establishment.
- Propagation of plants by vegetative means.
- Plant physiology: osmosis, respiration, photosynthesis, transpiration, translocation, food storage.
- Tests for food constituents.
- Essential elements for normal growth.
- Identification of plants of agricultural importance in the school environment and study of characterist...