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Elements and Performance Criteria

1. Prepare and collect soil samples for testing
   • Determine reasons for testing of soil
   • Prepare tools and materials for collecting samples
   • Take samples according to recognised sampling techniques
   • Label and record samples
2. Determine physical characteristics of sample
   • Conduct tests for texture and structure on the samples
   • Determine soil colour and the presence of organic matter
   • Determine characteristics of soil profile where required
   • Determine depth of topsoil and determine if sufficient for the requirements of the plants to be installed
   • Determine the ability of soil to drain or retain water
   • Assess the physical characteristics of soil and determine improvements needed
3. Determine chemical characteristics of sample
   • Conduct tests for pH and salinity
   • Determine the suitability of soil for particular plants
   • Determine the soil’s fertility and the need for additional fertiliser or other amendments
   • Determine the chemical characteristics of soil and improvements needed
4. Prepare soils for planting or replanting
   • Improve physical characteristics of garden or lawn areas as required
   • Adjust pH and salinity of soil in garden or lawn areas as required
   • Incorporate additional soil as needed to establish final levels
   • Finish soil level and consolidate ready for planting according to planting plans and enterprise procedures

Range Statement

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Performance Evidence

The candidate must be assessed on their ability to integrate and apply the performance requirements of this unit in a workplace setting. Performance must be demonstrated consistently over time and in a suitable range of contexts.

The candidate must provide evidence that they can:

conduct tests to determine soil physical properties of texture and structure

conduct tests to determine soil chemical properties of pH and salinity

make observations about fertility, mineral and organic matter content based on sample colour

make observations about soil drainage and water holding capacity

make recommendations to improve soils based on results of simple soil tests

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Knowledge Evidence

The candidate must demonstrate knowledge of:

principles and practices for providing information on soils or growing media

physical properties of soils and media

chemical properties of soils and media

products and processes for improving soils and media

sample collection, testing and methods used to perform tests

water holding capacity and readily available water

organic matter in soil and media

soil ameliorants and improvement techniques

nutrient availability in soils

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