Regular Soil Testing to Overcome Farming Constraints in Hills-Fleurieu

Promoting the regular practice of soil testing better to understand soil-related farming systems constraints across the Hills-Fleurieu region.

  • Complex Farming Systems

    Farmers in the region face unique challenges due to mixed enterprises, environmental priorities, and variability in soil resources, compounded by peri-urban dynamics.

  • Encouraging Regular Soil Testing

    The project prioritises educating farmers on soil testing and result interpretation to improve soil fertility, productivity, and sustainability.

  • Long-Term Impact

    Annual soil testing will create valuable datasets for researchers, helping to identify regional soil trends while enabling farmers to make informed decisions on soil amendments.

Project Overview

Navigating the Complexities of Farming in the Adelaide Hills and Fleurieu Peninsula

Farmers and land managers across the Adelaide Hills and Fleurieu Peninsula are responsible for managing some of the most complex farming systems. This complexity results from mixed farming enterprises, competing demands between community interests, industries, and environmental priorities, and interfacing with regional peri-urban communities. It is also exacerbated by variability in the physical soil resources and related environmental and production systems constraints.

Across the region, a wide range of production systems, special interest farmer groups and networks, and various agribusiness service providers. This introduces an additional layer of complexity relating to the steps to communicating and extending technical information and best management practices to farmers.

The Landscapes Board identified an area of need for encouraging farmers to undertake regular soil testing to develop improved soil and plant nutrition practices. Few farmers regularly soil test and have a limited understanding of soil constraints.

Justification for the project

Empowering Farmers Through Soil Testing

Encouraging landholders in the region to undertake soil testing regularly, understand the results and be able to address issues with a variety of soil amendments is an identified priority for the region.

By having farmers and land managers undertake soil testing (and interpret results) annually, farmers are expected to be capable of making the right soil amendment decisions for their properties, retaining and improving soil fertility in the long term. Long-term data sets obtained through this initiative will assist SARDI researchers in better understanding any soil issue trends occurring in the Hills and Fleurieu.

In summary, the project seeks to empower farmers with the knowledge and tools to address soil constraints, improve productivity, and build resilience against drought. The Hills and Fleurieu group aims to promote long-term sustainable farming practices through workshops, demonstrations, and expert collaborations.

Discoveries

Key outcomes

  • 1
    Step

    Ensuring Consistency in Soil Testing for Long-Term Monitoring

    Comparing historical and current soil test results was challenging due to the varying testing providers. Consistency is crucial for long-term monitoring.
  • 2
    Step

    Conserving Subsoil Moisture Amid Low Rainfall

    The lack of rain hindered biological activity, as evidenced by undigested “buried undies” tests. Below-average rainfall and dry soil conditions were considered to greatly reduce soil biological activity. This led to the discussion of strategies to conserve subsoil moisture, such as ground cover and windbreaks.
  • 3
    Step

    Addressing Subsoil Acidity and Salinity in Pastures

    Issues like subsoil acidity and salinity and their impacts on pastures were highlighted. Farmer awareness of these issues was low.
  • 4
    Step

    Fostering Collaboration Among Farmers and Land Managers

    This project was extremely successful in terms of bringing together a wide and diverse range of farmers and land managers. Participants collectively belong to many farmer, land management and industry groups across the region. Participants gained a significant level of information and knowledge from this project activity.
  • Technology benefits and adoption characteristics - Improved Resilience

    • Regular soil testing and tailored amendments to maintain soil fertility.
    • Better understanding of soil carbon trends in the region.

  • Technology benefits and adoption characteristics - Sustainable Practices

    • Increased adoption of soil health management practices.
    • Alternatives to synthetic fertilisers that help to reduce dependency and costs.

  • Technology benefits and adoption characteristics - Target Adoption

    • Aim to involve 40% of farmers in regular soil testing and amendments within five years.

Conclusion

This project was extremely successful in terms of bringing together a wide and diverse range of farmers and land managers. Participants collectively belong to many farmer, land management and industry groups across the region. Participants gained a significant level of information and knowledge from this project activity. The project demonstrated the importance of maintaining one soil analysis provider for soil testing over time (for consistency of results). Soil biological activity was greatly reduced due to the below-average rainfall and dry soil conditions.

Contact person: Bonnie Armour

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