Mass balance assessment of phosphorus dynamics in a fertilizer trial with 57 years of superphosphate application under irrigated grazed pasture
dc.contributor.author | Tian, J | |
dc.contributor.author | Boitt, G | |
dc.contributor.author | Black, Amanda | |
dc.contributor.author | Wakelin, S | |
dc.contributor.author | Chen, L | |
dc.contributor.author | Cai, K | |
dc.contributor.author | Condron, L | |
dc.date.accessioned | 2019-06-14T00:35:41Z | |
dc.date.available | 2019-03-29 | |
dc.date.issued | 2019-05 | |
dc.date.submitted | 2019-03-25 | |
dc.description.abstract | Improving the efficiency of phosphorus (P) use is a major challenge for agricultural production and sustainability. Using a combination of new and historic data, a mass balance approach was employed to construct and discuss a comprehensive P budget under temperate irrigated grazed pasture that had received different inputs of superphosphate fertilizer for 57 years [nil (Control), 188 kg ha⁻¹ (188PA) and 376 kg ha⁻¹ (376PA)]. Most (97–99%) of the applied P was accounted for in soil storage, plant residues, removal in animal products, excretal transfers, losses via irrigation outwash, rainfall runoff and leaching in the soil–plant–animal system. Management of soil available P that exceed the critical level (17–22 mg L⁻¹) for optimal pasture production can result in low P balance efficiency and excessive soil legacy P in the soil profile (0–1 m). Results of this study revealed that accumulation of P in soil and plants (68–80%), P losses by irrigation outwash (8–11%), and excretal transfers to stock camps (6–12%) were important factors that determined applied P use efficiency. These findings highlight the need to apply appropriate quantities of P fertilizer to maintain optimal soil P fertility, plant growth, and animal production, together with enhanced utilization of accumulated soil P and reduced P transfer in drainage. | |
dc.format.extent | pp.33-44 | |
dc.identifier | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=elements_prod&SrcAuth=WosAPI&KeyUT=WOS:000464897800003&DestLinkType=FullRecord&DestApp=WOS_CPL | |
dc.identifier.doi | 10.1007/s10705-019-09992-1 | |
dc.identifier.eissn | 1573-0867 | |
dc.identifier.issn | 1385-1314 | |
dc.identifier.other | HT9NN (isidoc) | |
dc.identifier.uri | https://hdl.handle.net/10182/10743 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Springer Verlag | |
dc.relation | The original publication is available from Springer Verlag - https://doi.org/10.1007/s10705-019-09992-1 - http://dx.doi.org/10.1007/s10705-019-09992-1 | |
dc.relation.isPartOf | Nutrient Cycling in Agroecosystems | |
dc.relation.uri | https://doi.org/10.1007/s10705-019-09992-1 | |
dc.rights | © Springer Nature B.V. 2019 | |
dc.subject | phosphorus fate | |
dc.subject | legacy phosphorus | |
dc.subject | phosphorus use efficiency | |
dc.subject | long-term field trial | |
dc.subject | soil profile | |
dc.subject.anzsrc2020 | ANZSRC::3004 Crop and pasture production | |
dc.subject.anzsrc2020 | ANZSRC::4004 Chemical engineering | |
dc.subject.anzsrc2020 | ANZSRC::4106 Soil sciences | |
dc.title | Mass balance assessment of phosphorus dynamics in a fertilizer trial with 57 years of superphosphate application under irrigated grazed pasture | |
dc.type | Journal Article | |
lu.contributor.unit | LU | |
lu.contributor.unit | LU|Agriculture and Life Sciences | |
lu.contributor.unit | LU|Agriculture and Life Sciences|SOILS | |
lu.contributor.unit | LU|Research Management Office | |
lu.contributor.unit | LU|Research Management Office|OLD QE18 | |
lu.contributor.unit | LU|Centre of Excellence for One Biosecurity Research, Analysis and Synthesis | |
lu.identifier.orcid | 0000-0001-7302-0895 | |
pubs.issue | 1 | |
pubs.publication-status | Published | |
pubs.publisher-url | http://dx.doi.org/10.1007/s10705-019-09992-1 | |
pubs.volume | 114 |