Riverine Plains Blog

Posts by:

Riverine Plains Inc.

Ryegrass in Barley

Weeds and pre-emergent efficacy: monitor now to maximise control options

Key messages:

  • check the efficacy of your pre-emergent herbicide applications – poor results may mean you need to reconsider your post-emergent spray program or other control options
  • overall herbicide efficacy can be affected by a range of factors including plant stress, moisture and inadequate coverage
  • delays or failures in weed control can be costly, so monitor now to manage the risk

Many Riverine Plains growers are still busy finishing their sowing programs, while also managing time-sensitive issues like slugs. Despite time constraints, it’s important to prioritise weed monitoring, including the effectiveness of pre-emergent herbicide applications, especially in earlier sown crops.

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Sulfur - how much do you have in the 'bank'?

Key messages:

  • canola crops are especially vulnerable to sulfur deficiency
  • leaching and high rates of plant removal over the past few years have likely reduced soil sulfur levels
  • incremented soil testing to a depth of 60-80cm will identify the quantity and location of sulfur in the soil
  • understanding what’s in the ‘bank’ can help farmers make timely and economical fertiliser decisions

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.

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Protecting your crops from mice damage

Key Messages:

  • Mice and rats have become a more persistent problem over the past few years
  • monitoring is key to understanding the scale of the problem and helps indicate when additional control is required
  • timing mouse bait application is critical to protecting crops when populations are high.

Mice populations have traditionally followed a boom-and-bust type pattern, however over the last decade or so they have become a more persistent problem.

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Minimising the impact of stubble burning on the community

Stubble burning and the community

Key messages:

  • while stubble burning allows farmers to manage heavy stubble loads ahead of sowing, smoke can reduce air quality and visibility
  • smoke from stubble burning can impact local wine growers
  • growers need to be sensitive to increased community concerns

Significant rainfall in 2022 meant that large amounts of stubble biomass was produced by crops across the Riverine Plains. Although many Riverine Plains region farmers have adopted a range of stubble management techniques, the sheer amount of stubble produced last season means that many growers will resort to burning cereal stubbles ahead of sowing.

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