Phosphorus budgeting for grain production systems and improving phosphorus acquisition using different phosphorus sources: GRDC – QLD (Webpage)
This Grains Research and Development Corporation (GRDC) webpage summarises research on phosphorus (P) use in grain systems in Goondiwindi (Qld) and Nyngan (NSW). It shows that wheat removes about 8-10 kg P/ha/year and highlights the importance of considering the soil’s phosphorus buffering index (PBI) when planning fertiliser use. Soils with high PBI need more phosphorus input. In low PBI soils, incorporating phosphorus into the soil provides yield and phosphorus uptake advantages over banding and vice versa in high PBI soils. It also looks at fertiliser placement methods and stresses maintaining adequate Colwell P levels to support yields. While this study was located in Qld and NSW, the findings would be of interest for other Australian cropping regions. For more information about PBI, watch the Soil Network of Knowledge webinar, Explaining phosphorus buffering index (PBI) [1:15:25].#
This is a carefully curated database of important soil resources. The data base is not exhaustive but rather a library of the resources we believe are the most useful for the audience. Each resource has been added after careful consideration against our selection criteria, including but not limited to its scientific validity, accessibility, and readability. The library generally does not include most academic research papers but may include some open-source papers written in accessible English.
Â
SSA reminds users that these resources are a guide only. Our understanding of soil science is improving continuously so it is important to check the suitability of the information for your purpose with an appropriately qualified professional such as a Registered Soil Professional or a Certified Professional Soil ScientistÂ
