NZQA Expiring unit standard
19142 version 3
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Title
Describe the role of elements and fertilisers in primary production,
and soil testing
Level
3
Credits
6
Purpose
People credited with this unit standard are able to describe: the
roles that elements play in plant health and growth; influence of
trace elements on plant health and growth; major types of
fertilisers used in primary production; steps in taking samples
for a soil test, and additional information to be submitted with a
soil test; and demonstrate knowledge of fertiliser compounds
and blends, and their compatibility.
Classification
Agriculture > General Agriculture
Available grade
Achieved
Explanatory notes
Reference
Code of Practice for Nutrient Management, New Zealand Fertiliser Manufacturer’s
Research Association Incorporated (NZFMRA), 2007, available from
http://www.fertresearch.org.nz.
Outcomes and evidence requirements
This unit standard is
Describe the roles that elements play in plant health and growth.
expiring
Evidence requirements
Outcome 1
1.1
Soil pH is described in terms of its range and effect on nutrient and trace
element availability, soil structure and organisms, and plant growth tolerances.
1.2
Macro nutrients and major trace elements significant to one type of primary
production are identified by name and chemical symbols.
1.3
Common nutrient deficiencies of New Zealand soils are defined in terms of their
symptoms and effects on plant growth.
Range
phosphorus, potassium, sulphur, nitrogen.
Outcome 2
Describe the influence of trace elements on plant health and growth.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
19142 version 3
Page 2 of 3
Evidence requirements
2.1
The role of trace elements in plant processes is described in terms of plant
responses to the presence or absence of trace elements.
2.2
Typical plant trace element deficiency and toxicity responses are recognised for
a range of trace elements within one type of primary production and region.
Outcome 3
Describe the major types of fertilisers used in primary production.
Range
evidence is required for at least four fertilisers.
Evidence requirements
3.1
Major forms of fertiliser used in primary production are described and
differentiated in accordance with the nutrient or nutrients supplied.
Range
method of application, application rates, environmental
implications;
evidence is required for one sector of agriculture.
3.2
Nitrogen / Phosphorous / Potassium / Sulphur (NPKS) rating is defined in terms
of percentages of nutrients available and their contribution to soil fertility.
3.3
Target fertility levels are described in terms of the optimum level for the property
soil type, and type of enterprise.
3.4
The timing of fertiliser application is described in relation to weather conditions,
soil type, and plant growth curves.
This unit standard is
Describe the steps in taking samples
for a soil test, and additional information to be
expiring
submitted with a soil test.
Outcome 4
Evidence requirements
4.1
The sampling method is defined in terms of its suitability for the property, and
laboratory directions.
4.2
Sampling procedure is described as specified by a soil testing laboratory.
4.3
Additional information required to be supplied with a soil test is described in
accordance with testing laboratory requirements.
4.4
Soil tests are described in terms of the implications of nutrient level results.
Outcome 5
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
19142 version 3
Page 3 of 3
Demonstrate knowledge of fertiliser compounds and blends, and their compatibility.
Range
evidence is required for at least two compounds, two blends.
Evidence requirements
5.1
Fertiliser compounds and blends, are described in terms of their usage.
5.2
Fertiliser compounds and blends are described in terms of chemical and
physical compatibility, and implications for handling and transport.
5.3
Fertiliser compounds and blends are described in terms of chemical and
physical compatibility, and implications for spreading.
Replacement information
This unit standard has been replaced by unit standard
28921
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
25 June 2002
31 December 2018
Review
2
20 May 2008
31 December 2018
Review
3
16 July 2015
31 December 2018
This unit standard is
Please note
expiring
Providers must be granted consent to assess against standards (accredited) by NZQA,
Consent and Moderation Requirements (CMR) reference
0052
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR 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.
Primary Industry Training Organisation
SSB Code 101558
 New Zealand Qualifications Authority 2016