The nutritional value of manures and other organic phosphorus sources and uptake over time: GRDC – QLD, NSW (Webpage)
This Grains Research and Development Corporation (GRDC) webpage presents research on the phosphorus (P) content and availability in livestock manures and other organic sources. The study found that a significant portion of total P in livestock manure exists in inorganic forms, averaging 78%, with this proportion increasing through drying, processing, and storage. Field experiments demonstrated that crop responses to phosphorus from chicken manure were comparable to those from monoammonium phosphate (MAP) when other nutrients were non-limiting. The fate of phosphorus from chicken manure in soil was similar to that of MAP over time, with accumulation primarily in the 0–10 cm soil layer as inorganic P. Crop recovery of ‘fresh’ MAP in the year of application was higher for canola (40%) compared to wheat (32%), and similar across fertiliser types and rates. The research suggests that chicken manure can be an economical phosphorus fertiliser, especially when sourced locally. While the study relates to cropping in NSW and QLD, its findings are applicable to other Australian cropping areas.#
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.
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