Riverine Plains Blog

Key Messages

• 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
  

Key Messages  

Key messages

• Dual purpose winter crops can help fill the autumn–winter feed gap
• While there is currently a full moisture profile, a dry topsoil and potentially dry autumn may impact establishment
• Be mindful of soil temperature and available soil moisture when sowing early (February–March)

Key messages

• Review cash flow budgets in light of revised yield & quality
• Communicate with your farm advisors & bank manager
• Be open-minded to opportunities that increase your income stream

Key Messages

• Stubble retention has many benefits for soil health, can improve soil moisture and help maintain soil organic carbon levels
• Different methods of sowing and equipment result in different thresholds for change in terms of maximum stubble load that can be retained
• If full stubble retention is not feasible due to machinery, weeds or disease constraints, there are other options such as shallow incorporation, slashing straw or cutting short at harvest which can reduce the frequency of burning

Benefits of Stubble Retention

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 )