22188 version 1
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Demonstrate knowledge of irrigation systems used in horticulture
Level
2
Credits
5
Purpose
This unit standard is for people working, or intending to work, in horticulture.
People credited with this unit standard are able to: demonstrate knowledge of
the importance of irrigation in horticulture production; identify and describe
the range of irrigation systems used in New Zealand horticulture; describe a
typical irrigation system; and identify the water sources for irrigation systems.
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 22189 replaced unit
standard 779.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
Primary 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
Regulations on water permits and water consents should be sought from local
authorities.
2
Legislation relevant to this unit standard includes but is not limited to the Resource
Management Act 1991.
 New Zealand Qualifications Authority 2016
22188 version 1
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Elements and performance criteria
Element 1
Demonstrate knowledge of the importance of irrigation in horticulture production.
Performance criteria
1.1
Importance of plant water requirements is identified in relationship to plant
growth and plant processes.
1.2
Seasonal rainfall variation within New Zealand is described and the importance
of water storage and availability is explained.
1.3
Effect of over watering on plant growth is described.
1.4
Use of water budgets is described in terms of how much irrigation should be
applied to horticulture crops.
Element 2
Identify and describe the range of irrigation systems used in New Zealand horticulture.
Range
mist, trickle, overhead, capillary, hand, rain gun, low pressure and high pressure
systems.
Performance criteria
2.1
Characteristics of each system are described in terms of how it functions.
2.2
Advantages and disadvantages of each system as a horticulture irrigation
method are compared.
2.3
Irrigation systems used in each sector of production horticulture are identified.
Range
horticulture sectors may include but are not limited to – amenity,
floriculture, fruit, landscape, nursery, vegetable, and viticulture.
Element 3
Describe a typical irrigation system.
Performance criteria
3.1
Layout of a typical irrigation system is described and explained.
Range
water source, filter (two types) water flow valve, water tank,
headers, laterals, emitters (three types), joiners.
 New Zealand Qualifications Authority 2016
22188 version 1
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3.2
Materials and equipment suitable for an irrigation system are identified and how
they are used is explained.
Range
3.3
may include but are not limited to – pumps, filters, header line;
valves; lateral lines.
Irrigation system maintenance is described.
Element 4
Identify the water sources for irrigation systems.
Range
river/stream, city water supply, lake, dam, artesian bore, roof, springs.
Performance criteria
4.1
Advantages and disadvantages of each water source are identified.
4.2
Water permit regulations are described in terms of their importance to the
environment.
4.3
Methods of water conservation are identified in terms of how they can apply to
horticultural practices.
Range
water recycling and water storage.
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.
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 Primary Industry Training Organisation via their website
www.primaryito.ac.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016