Closed ATM View - PROC-9176306
Impact of stubble height on cropping systems in the Western Regin
Show close time for other time zones
The Grower Network members have raised the opportunity for GRDC to look at the impact of harvesting stubble higher in the Western Region, as they think it may have the potential to change their current farming system. Taller harvested stubble in this investment is referring to taller than current “standard” residue levels for each region within the Western region. Currently most growers within WA, would harvest around 15cm (beer can height) above ground level to maximise HWSC.
This proposed investment is a preliminary step that looks to compare conventional stubble structures and heights, and load (straw & chaff) with taller stubble residue systems, heights and load (mostly only chaff) and in frost risk areas, a no residue system. Treatments will be implemented using grower equipment and will be replicated.
Importantly the investment will include monitoring of soil moisture, plant establishment, presence of disease, weed competitiveness and herbicide efficacy, HWSC options, nutrient budgeting and ultimately grain yield responses. GRDC will negotiate to establish three trial site per rainfall zone, rather than port zone.
This investment will look at outcomes from the related investments and will be flexible in nature prior to contracting to take into consideration any major findings from the related projects. The “Stubble retention guide for WA” is expected to be completed by December 2020 and it is hoped that this investment will showcase the key findings within this publication.
• The Applicant must be a single legal entity or recognised firm of partners.
• The Applicant and any proposed subcontractor must be compliant with the Workplace Gender Equality Act 2012.
• The Applicant and any subcontractor must not have a judicial decision against it (not including decisions under appeal) relating to employee entitlements and who have not paid the claim.
• The Applicant and any subcontractor must not be named on the Consolidated List, being the list of persons and entities who are subject to targeted financial sanctions or travel bans under Australian sanction laws, as maintained by the Department of Foreign Affairs and Trade.
5:00pm ACT time - 15 January 2021
tenderers must submit their responses electronically through the Grains Investment Portal at: https://access.grdc.com.au