22174 Demonstrate knowledge of soils and fertilisers by pptfiles

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Demonstrate knowledge of soils and fertilisers

Level                              2

Credits                            5

Purpose       People credited with this unit standard are able to: describe the composition
              of soil; identify soil texture and structure; describe two soils using the New
              Zealand Soil Classification; and describe the role of fertiliser for plant health
              and growth.


Subfield                            Horticulture

Domain                              Production Horticulture

Status                              Registered

Status date                         25 July 2006

Date version published              25 July 2006

Planned review date                 31 December 2011

Entry information                   Open.

Replacement information             This unit standard and unit standard 22175 replaced unit
                                    standard 14, unit standard 33, unit standard 34, and unit
                                    standard 35.

Accreditation                       Evaluation of documentation and visit by NZQA and
                                    industry.

Standard setting body (SSB)         New Zealand Horticulture Industry Training Organisation

Accreditation and Moderation Action Plan (AMAP) reference                     0032
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.

Special notes

1   The New Zealand Soil Classification is used in this unit standard as the basis for
    describing soils in New Zealand. Information on the New Zealand Soil Classification
    is available at http://soils.landcareresearch.co.nz.

2   Recommended reading for this unit standard includes: Molloy, L Soils in the New
    Zealand Landscape – The Living Mantle, 2nd Edition (New Zealand Society of Soil
    Science, 1998) available at http://www.mwpress.co.nz.




                                                                  New Zealand Qualifications Authority 2012
                                                                                    22174 version 1
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Elements and performance criteria

Element 1

Describe the composition of soil.

Performance criteria

1.1        Major components of soil are defined in terms of their composition, relative size,
           and proportions.

           Range          mineral particles, organic material, water, air.

1.2        Major components of soils are discussed with reference to their influence on
           plant growth.

           Range          mineral particles, organic material, water, air.

1.3        Main soil horizons are outlined in terms of their composition.

           Range          litter layer, topsoil, subsoil, parent material.

Element 2

Identify soil texture and structure.

Performance criteria

2.1        Soil aggregates are described in terms of their effects on plant growth.

           Range          aggregates – crumb, block, platy, fine;
                          descriptions must include appearance and size.

2.2        Major soil textural types are identified by feel and sight.

           Range          sand, sandy loam, silt loam, clay loam, clay.

2.3         Soil structure is described in terms of its affect on plant growth.




                                                                     New Zealand Qualifications Authority 2012
                                                                                   22174 version 1
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Element 3

Describe two soils using the New Zealand Soil Classification.

Range      may include but are not limited to – volcanic loams, brown earths, coastal
           sands, organic soils, podzols, pumice soils, brown clays, and recent alluvial
           soils.

Performance criteria

3.1        The characteristics of the soils selected are described and compared according
           to their use.

           Range         drainage, parent material, structure, nutrient deficiencies, texture,
                         potential for plant growth.

3.2        Soils selected are described in terms of how they are formed.

3.3        Soils selected are identified according to their location and use in New Zealand.

Element 4

Describe the role of fertiliser for plant health and growth.

Performance criteria

4.1        Macronutrients and micronutrients are defined in terms of how they affect plant
           growth.

4.2        Fertilisers and lime are identified in terms of how they influence plant growth.

           Range         lime, nitrogenous, phosphatic and potassic fertilisers.

4.3        Fertilisers and lime are discussed in terms of how they can be altered to affect
           plant growth.

           Range         soil testing, leaf analysis, monitoring of fertiliser applications, soil
                         and plant deficiencies and toxicities.

Please note

Providers must be accredited by the Qualifications Authority, or an inter-institutional body
with delegated authority for quality assurance, before they can report credits from
assessment against unit standards or deliver courses of study leading to that assessment.

Industry Training Organisations must be accredited by the Qualifications Authority before
they can register credits from assessment against unit standards.

Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.




                                                                    New Zealand Qualifications Authority 2012
                                                                              22174 version 1
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Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP also includes useful information about special requirements for organisations
wishing to develop education and training programmes, such as minimum qualifications for
tutors and assessors, and special resource requirements.

Comments on this unit standard

Please contact the New Zealand Horticulture Industry Training Organisation via their
website www.hortito.org.nz if you wish to suggest changes to the content of this unit
standard.




                                                               New Zealand Qualifications Authority 2012

								
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