Fertiliser use efficiency in irrigated cotton

Closed 21 Apr 2015

Opened 21 Apr 2015


The climate change function transferred to our department from the Department of the Environment and Energy on 1 February 2020.

Finalised method determination

Method Determination made. The Carbon Credits (Carbon Farming Initiative—Reducing Greenhouse Gas Emissions from Fertiliser in Irrigated Cotton) Methodology Determination 2015 was made on 21 April 2015.

Project applications to implement the Methodology Determination may be made to the Clean Energy Regulator.

About this method

This method provides for crediting emissions reductions achieved by improving the efficiency of synthetic fertiliser use in irrigated cotton. The method provides proponents with flexibility to select a broad range of management actions that will achieve these emissions reductions. The method requires proponents use the Irrigated Cotton Calculator. The Calculator includes the equations attached in the Tools section below.

Development of this Method

Emissions Reduction Assurance Committee (ERAC) advice

The ERAC's advice to the Minister regarding the suitability of the Determination to be made is published here, in accordance with the Section 106(11) (C) of the Carbon Credits (Carbon Farming Initiative) Act 2011.

Public consultation

A draft method determination for fertiliser use in irrigated cotton was released for public comment from 14 November 2014–12 December 2014.

Draft determination and explanatory statement

Note: A draft method determination that is open for public comment should not be relied upon for planning an ERF project. Draft method determinations may be modified following public consultation and are not final until made by the Minister for the Environment.

Submissions received

The following non-confidential submissions were received through the public consultation process.


The Irrigated Cotton Calculator has been developed to assist project proponents to calculate the effect of improving fertiliser use efficiency in irrigated cotton to reduce greenhouse gas emissions.

It is a requirement under the method that all projects under the Determination use the Irrigated Cotton Calculator to estimate emissions reductions for reporting purposes.

Irrigated Cotton Calculator


Note: The Irrigated Cotton Calculator requires that users enable macros after opening the file to ensure its correct operation.

The Irrigated Cotton Calculator has been developed to run on Microsoft Excel 2004, 2007, 2010 and 2011. It cannot be run on Excel 2008 for Mac as this version cannot enable macros.

Equations used in the Cotton Calculator


  • Emissions Reduction Fund


  • Climate Change
  • Emissions Reduction Fund