Rhs year 2 week 4 presentation

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  • 1. RHS Level 2 Certificate Barriers to Learning and Soil Organic Matter
  • 2. Learning objectives
    • Identify two ways to improve personal time management for study.
    • Identify two techniques to overcome negative attitudes to study
    • 5.1 State the main sources of organic matter in the soil, to include: recycling of natural resources (plant and animal remains); incorporation of imported resources, e.g. farm-yard manure and garden compost; incorporation of crop debris.
    • 5.2 Describe TWO beneficial effects and TWO limitations of organic matter in the soil.
    • 5.3 List four bulky organic materials that can be used for soil improvement in a garden, including farmyard manures; garden compost; mushroom compost; composted municipal waste.
    • 5.4 Compare the benefits and limitations of each of the materials listed in 5.3 for soil improvement.
  • 3. Soil Profile and Texture Homework outcomes
    • In groups discuss outcomes and complete the forms.
    • How would you manage the soils you have identified? Water, drainage, organic matter, structure?
    • What are the variations across the district?
    • Any anomalies – ‘builders top soil’, cultivation pans etc.
  • 4. Study Planning and Time Management
    • Four D’s – Do It! Delegate it! Dump it! Do it less well!
    • Written Study plan
    • Family support (see Delegate it!)
    • Rewards and motivation – watch out for the ‘fifth week blues’
  • 5. Barriers to Learning
    • Negative beliefs about ourselves as learners
    • How to challenge these?
    • I can’t do this….yet!
    • Fear of failure
    • How to overcome this?
    • Focus on the positive.
  • 6. Soil Organic Matter
    • Natural cycle of deposition and decomposition interrupted by harvesting, weeding and cultivation
    • Without additional organic material the soil becomes depleted.
    • Sandy soils lose organic matter more quickly than clay soils. Decomposition needs air and the speed is temperature and moisture dependent.
  • 7. Main Sources of Organic Matter in the Soil
    • Natural decomposition of leaves and plants and animals after death.
    • From the garden – digging in crop residues; garden compost
    • Brought in materials – mushroom compost; municipal composted garden waste; farm yard manure.
  • 8. Advantages and disadvantages of crop debris etc Recycles waste Soil may then contain very coarse organic matter Low effort – digging in only Turning in weed seeds that will germinate if exposed to light No risk of importing diseases Unlikely to be sufficient on its own Present on site already Disadvantages Advantages
  • 9. Advantages and disadvantages of compost Uncertain nutrient composition. Recycles waste that would otherwise be dumped May contain pests and diseases if not ‘hot’ composted Good source of nutrients Local authority compost may contain plastics, perennial weeds etc Low cost – either free or purchased from LA Disadvantages Advantages
  • 10. Advantages and disadvantages of Farm Yard Manure Can acidify soil; anaerobic decomposition causes foul smell Easily available and inexpensive in bulk Can contain herbicide residues Good for improving drainage Uncertain nutrient composition Good source of nutrients Needs to be stacked and stored Long lasting in the soil Disadvantages Advantages
  • 11. Advantages and disadvantages of spent mushroom compost Can be expensive due to transport costs unless collected. Good organic content and already partially rotted – no need to stack. Alkaline so not good for acid loving plants, fruit etc Alkaline so good for vegetable plots Not readily available in many areas Recycles waste Disadvantages Advantages
  • 12. Advantages and limitations of adding organic matter to the soil Likely to need to import material Improves CEC Can acidify the soil as it decomposes Darkens soil so it warms more quickly Breaks down more quickly in well aerated, well drained soils Encourages formation of ‘crumb’ structure Needs to be regularly applied in bulk – especially intensively cultivated soils Improves drainage and water holding capacity Limitations Advantages
  • 13. Learning outcomes
    • Identify two ways to improve personal time management for study.
    • Identify two techniques to overcome negative attitudes to study
    • 5.1 State the main sources of organic matter in the soil, to include: recycling of natural resources (plant and animal remains); incorporation of imported resources, e.g. farm-yard manure and garden compost; incorporation of crop debris.
    • 5.2 Describe TWO beneficial effects and TWO limitations of organic matter in the soil.
    • 5.3 List four bulky organic materials that can be used for soil improvement in a garden, including farmyard manures; garden compost; mushroom compost; composted municipal waste.
    • 5.4 Compare the benefits and limitations of each of the materials listed in 5.3 for soil improvement.