22180 version 1
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Manage a greenhouse crop
Level
4
Credits
20
Purpose
This unit standard is for people working in horticulture. People credited with
this unit standard are able to: establish plants in growing situations; fertigate
plants; operate environmental control systems to ensure optimum plant
growth; manage, control and record crop production; and maintain
greenhouse hygiene.
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 22179 replaced unit
standard 782, unit standard 798, unit standard 838, unit
standard 2816, and unit standard 2817.
Accreditation
Evaluation of documentation and visit by NZQA, industry
and teaching professional in the same field from another
provider.
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
Workplace procedures refer to verbal or written instructions to staff on procedures for
the worksite and equipment.
2
Legislation relevant to this unit standard includes but is not limited to the Health and
Safety in Employment Act 1992.
 New Zealand Qualifications Authority 2016
22180 version 1
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3
A greenhouse crop could be any crop grown in the soil, hydroponically, or in a soilless media.
4
Candidates must keep records over a 10 month period and evidence needs to be
shown that daily production data (eg. nutrient levels, maintenance, staff working
areas) is recorded during the growing of the crop.
5
Crops may include but are not limited to one of the following – cut flowers,
greenhouse vegetables, greenhouse tomatoes, or organic horticulture.
Elements and performance criteria
Element 1
Establish plants in growing situations.
Performance criteria
1.1
Plants are placed at pre-determined spacing and depth and established until
they are self-supporting.
1.2
Methods used prevent damage to plants and spread root structures to maximise
plant growth.
Element 2
Fertigate plants.
Performance criteria
2.1
Nutrients are mixed to pre-determined requirements and placed in holding tanks
ready for circulation.
2.2
Pre-set irrigation system is activated to supply nutrients at selected fertigation
rates.
2.3
Nutrient levels (and drainage, if necessary), in fertigation system are checked
daily and recorded.
2.4
Fertigation rates are altered according to workplace procedures as and when
requested.
2.5
System is monitored and adjusted to ensure required plant nutrient conditions
are maintained.
2.6
Fertiliser tanks are cleaned and filled as required.
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22180 version 1
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Element 3
Operate environmental control systems to ensure optimum plant growth.
Performance criteria
3.1
Control systems are activated to establish pre-determined environmental
conditions.
Range
temperature, humidity, ventilation, heating, carbon dioxide,
lighting, solar screens.
3.2
Crop monitoring is carried out to ensure plant health problems are detected and
treatment procedures are applied.
3.3
Systems are monitored and adjusted to ensure environment conditions continue
to meet optimum crop requirements.
Element 4
Manage, control and record crop maintenance.
Performance criteria
4.1
Crop maintenance is managed and carried out for the duration of the crop.
Range
at least three of the following – deleafing, debudding, delateraling,
plant supporting, truss pruning, pollinating, beehive placement.
4.2
Staff is managed in a systematic plan to ensure crop maintenance is kept up to
date.
4.3
Daily records are kept of all crop maintenance work and fertigation, from
planting to end of harvest.
4.4
Daily observations of the crop are made and if necessary changes to crop
maintenance are made to ensure optimum plant growth.
Range
observations may include but are not limited to – crop growth,
nutrient deficiencies/toxicities, pests and diseases, leaf and flower
growth, fruit growth.
Element 5
Maintain greenhouse hygiene.
Performance criteria
5.1
Hygiene measures are explained in terms of potential disease problems in
crops being grown in the greenhouse.
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22180 version 1
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5.2
All crop residues are removed and disposed of in accordance with workplace
procedures.
5.3
Temporary heating and irrigation fixtures are removed at end of crop harvest
and cleaned and stored in accordance with workplace procedures.
5.4
The walls and all remaining fittings are disinfected or fumigated in accordance
with workplace procedures.
5.5
Greenhouses are regularly maintained in accordance with workplace
procedures.
Range
weed control, repairing wire supports, glass/plastic repair,
irrigation.
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