Farm Table says:
Stubble management guidelines for the Riverine Plains
This factsheet helps you to make decisions around stubble management at harvest time.
It helps via the following key sections:
- Calculating potential stubble loads
- Lower the harvesting height
- Control residue spread at harvest
- Stubble mulching or incorporation
- Burn stubble
- Legumes in the rotation
The following key points are prescribed:
- Calculating the stubble load at harvest supports a strategic approach to managing stubble at sowing, maximising the benefits of retained stubble while minimising the challenges.
- For high-yielding crops, lowering the harvest height can reduce the overall stubble load while still maintaining the benefits of retained stubble.
- Mulching or lightly cultivating stubble soon after harvest increases the soil–stubble contact and aids stubble breakdown before sowing.
- While burning helps to reduce stubble loads at sowing, and can improve weed control and pre-emergent herbicide efficiency, it increases the risk of erosion and impacts on soil moisture retention during the summer fallow