Production & postharvest

The Department of Primary Industries and Regional Development contributes to the productivity, profitability and sustainability of plant-based agriculture. From broad scale dryland cropping systems to intensive irrigated production, we work with industry and business to address challenges in plant production through research and development, knowledge transfer and government policy settings.

Articles

  • The rate of soil acidification due to agriculture can be reduced but not eliminated. Liming will always be needed to prevent the soil from becoming too acidic.

  • Soil acidification occurs naturally very slowly as soil is weathered, but this process is accelerated by productive agriculture.

  • A small decrease in soil pH represents a large increase in soil acidity.

  • Agricultural lime is any product that is used to increase the pH of soil. In Western Australia, the three main sources are limesand, limestone and dolomitic lime.

  • Aluminium toxicity in the subsurface is the major problem associated with soil acidity in Western Australia.

  • Carbonate from calcium carbonate (or magnesium carbonate) neutralises acid in the soil.

  • In this section you will find detailed information on various case studies highlighting the long-term benefits of liming and different options used by farmers for incorporating lime.

  • Convert to 100% neutralising value (NV) for equal comparison and discount to allow for differences in particle size and speed of reaction.

  • In this section you will find answers to commonly asked questions from Western Australian growers and consultants about lime, liming and soil and pH testing, as well as links to other useful inform

  • Determining how water moves through soil and is used by plants following irrigation is difficult.

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