- stored soil moisture can be important for establishment and yield in dry seasons
- stubble management technique can impact plant available water
- managing high stubble loads begins at harvest and helps prevent issues at sowing
Sulfur (S) is an important nutrient for grain crops as it is used in chlorophyll formation and plant development. Canola has a higher requirement than wheat or legume crops for sulfur thanks to its oil and protein production.
Summer and early autumn provides an opportunity for Riverine Plains farmers to treat soil constraints, such as acidity and sodicity, between winter crops.
So, what are the issues to consider?
Retaining stubble can reduce the impacts of soil erosion. At least 70 per cent ground cover minimises water erosion risk and 50 per cent ground cover minimises wind erosion risk. Stubble height should be at least one-third of the width of crop rows. In general, the shelter provided by a barrier is approximately three times its height; 10 cm tall stubble will protect the adjacent 30 cm of topsoil. (Source: Managing stubble | General agronomy | Crop production | Grains, pulses and cereals | Crops and horticulture | Agriculture Victoria )