Capture weed seed survivors at harvest using chaff lining, chaff tramlining, chaff carts, narrow windrow burning or weed seed impact mill. There are currently nine Harvest Weed Seed Control (HWSC) tools being used by Australian grain growers. All remove weed seeds at harvest but they come at a different capital cost, running cost and cost of nutrient removal. To compare these tools we must first consider the running cost, and then add the nutrient cost to get a realistic comparison.
WeedSmart’s Peter Newman has also put together a model on HWSC so you can calculate the cost of different HWSC options on your farm. You can download the model here.
You can access two of the Kondinin Group’s Research Reports on mill technology by clicking on the images below.
This option is relatively easy to adopt and has good results for farmers. Some of the downsides to this option include it being time-consuming; the high level of nutrient removal and the risk of fire escapes to name a few.
At Warakirri Cropping Trusts’ ‘Orange Park’, manager John Stevenson has set up a crop rotation that is profitable and able to combat herbicide resistance in weeds.
• Dec 03, 2016
Robert Gollasch, NSW
Chaff carts are towed behind harvesters at harvest with the aim of collecting the chaff fraction as it exits the harvester. There are a number of options to manage the chaff, including burning it or placing it in chaff dumps to be used as livestock fee
Regional Update – Adrian Perks, Farmer, Esperance, WA
In this edition of the Regional Update we’re heading to the Western Region and catching up with farmer, Adrian Perks. Adrian is based in Condingup in WA, which is 70 kilometres north east of Esperance.
The Glenvar Bale Direct System was developed by the Shields family at Wongan Hills. Essentially, it consists of a large square baler directly attached to the harvester that produces bales from the chaff and straw residues at harvest.
Tim Bartimote, Local Land Services (LLS) in Dubbo says many grain growers in the Central West region of NSW are keen to see the benefits of integrated weed management tactics demonstrated in their area.
Regional Update – Tim Bartimote, LLS NSW
On this episode of the Regional Update, we catch up with Tim Bartimote.
Tim is a Senior Land Services Officer in the Cropping division for NSW Central West Local Land Services.
Why chaff decks are a great option for harvest weed seed control
On this edition of the podcast, we’re taking a closer look at chaff decks!
Chaff decks have been a mainstay in the harvest weed seed control space for a number of years, but with weed seed impact mills starting to increase in market share in this space, where will the chaff deck fit?
• Feb 17, 2020
Esperance growers using chaff decks and chaff lining
Insights into harvest week seed control tactics using chaff lining or tramlining
This cheap and simple solution involves creating a chaff chute which is attached to the back of the harvester to divert the chaff fraction (containing weed seeds) in a narrow row at the centre of the harvester instead of onto the tramlines, meaning it can also be used in non-CTF farming systems.