The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!
From the Wiki University
What evidence can you provide to prove your understanding of each of the following citeria?
Determine the feasibility of using or up-grading irrigation system
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Water resources and drainage implications are assessed to determine suitability for irrigation. Completed |
Evidence:
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Water quality and treatment requirements are determined. Completed |
Evidence:
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Water requirements and most suitable application systems are determined for each crop/plant type and area, and for each soil type. Completed |
Evidence:
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Other water requirements, such as climate control, are determined. Completed |
Evidence:
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Soil types are assessed to determine suitability for irrigation and the range of crop/plant types that could be grown. Completed |
Evidence:
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Drainage requirements are determined in relation to each soil and crop/plant type and type of irrigation system. Completed |
Evidence:
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Performance data, audit reports, environmental and Occupational Health and Safety (OHS) data for existing systems are assessed if available. Completed |
Evidence:
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Information is obtained from irrigation specialists on all relevant aspects of irrigation design. Completed |
Evidence:
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Available irrigation system types and components are assessed and costed, and a decision is made on the particular system to be used or upgrades to existing system. Completed |
Evidence:
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Install or modify an irrigation and drainage system as necessary
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Materials and equipment making up the system are determined and acquired. Completed |
Evidence:
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Irrigation system is installed using advice, as necessary, from irrigation specialists. Completed |
Evidence:
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Checking that irrigation and drainage systems are supervised to ensure there are no leaks or blockages; that the water is being evenly distributed; that drainage is effective and the system is in good working order. Completed |
Evidence:
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Evaluate irrigation system performance
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Plant growth /yield increases from irrigation are determined and valued. Completed |
Evidence:
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Costs of irrigation are calculated. Completed |
Evidence:
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Cost benefit of irrigation is determined and compared with alternative systems/approaches. Completed |
Evidence:
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