Recent rainfall across the region and encouraging soil moisture probe readings have many landholders considering spring pasture sowing.

While spring presents a valuable opportunity - especially for those who missed the autumn sowing window - Riverina Local Land Services says success relies heavily on timing, good management, and ongoing monitoring.

It provides the following advice:

Soil moisture may appear sufficient right now, but spring brings rising temperatures and drying winds that can rapidly reduce surface moisture.

This creates a risky environment for germinating seeds, which need consistent moisture to establish.

Monitoring both soil moisture and temperature is essential to avoid sowing into unsuitable conditions that could lead to patchy establishment or outright failure.

This is where the Riverina Soil Moisture Probe Network, managed by Riverina LLS, becomes an invaluable tool.

The network combines real-time data from on-farm probes and weather stations with the Farming Forecaster platform.

By integrating this data with CSIRO’s GrassGro model, landholders can forecast pasture growth and livestock performance up to four months ahead.

Through the platform, users can check soil moisture at various depths, identify drying trends, and plan sowing around predicted rainfall events.

Historical data also allows comparisons with previous seasons, helping refine decisions on species selection and timing.

Weed control is another critical factor.

Winter weeds like vulpia and summer threats such as crumbweed and fat hen can outcompete young seedlings.

Effective weed management before sowing gives new pastures the best chance to thrive.

Choosing the right species is also key.

Perennial legumes like lucerne and white clover tend to perform well in spring, whereas some annuals may struggle to mature before summer.

Nutrient availability, particularly phosphorus, nitrogen, and sulphur, also supports strong early growth - soil testing can guide these inputs effectively.

Finally, don’t overlook grazing management.

Avoid grazing too early - especially on wet soils - to prevent damage. Where possible, rest new pastures through spring to encourage establishment and seed set.

With the right approach, spring sowing can help fill seasonal feed gaps and boost productivity.

Explore soil moisture data and pasture forecasts today at farmingforecaster.com.au.

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Monday, 13th March 2023

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