Capture weed seed survivors at harvest using chaff lining, chaff tramlining, chaff carts, narrow windrow burning or weed seed impact mill. There are currently six 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.
Resources:
- 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. Download the model.
- You can learn more about harvest weed seed control in our Diversity Era course, Harvest Weed Seed Control 101.
- Access two of the Kondinin Group’s Research Reports on mill technology by clicking on the images below.