| Title | Contrasting Phosphorus Build-up and Drawdown Dynamics in Soils Receiving Dairy Processing Sludge and Mineral Fertilisers |
|---|---|
| ID_Doc | 12439 |
| Authors | Khomenko, O; Fenton, O; Leahy, JJ; Daly, K |
| Title | Contrasting Phosphorus Build-up and Drawdown Dynamics in Soils Receiving Dairy Processing Sludge and Mineral Fertilisers |
| Year | 2024 |
| Published | Journal Of Soil Science And Plant Nutrition, 24.0, 1 |
| Abstract | Sustainable utilisation of waste from the food industry is required to transition to a circular economy. The dairy industry relies on high phosphorus (P) inputs and produces large quantities of P-rich dairy processing sludge (DPS). Recycling DPS into P fertilisers provides an opportunity to decrease the reliance on chemical P fertilisers. However, current soil nutrient management planning (NMP) is based on chemical P and does not account for recycled alternatives. A pot trial using a novel isotope pool dilution technique was used to describe build-up and drawdown cycles of P in soils fertilised with DPS. Changes in available, exchangeable, and Mehlich3 P (M3-P) pools were recorded over 36 weeks of grass growth. Results demonstrated that in the period of high P demand (12 weeks), these P pools were depleted. As crop growth and demand decreased, available P recovered through mobilisation of P from exchangeable P and M3-P reserves. DPS allowed available P to recover and build up to agronomic target levels after 24 weeks. Using DPS, build-up of available and exchangeable P was slower but P use efficiency was higher at stages of slow growth. Dairy waste created a more stable P pool which could be utilised by crops over a growing season indicating that NMP needs to account for this in the decision support for growers. Isotope studies revealed that extractive agronomic tests do not capture drawdown in P reserves. |
| https://link.springer.com/content/pdf/10.1007/s42729-023-01585-w.pdf |
Similar Articles
| ID | Score | Article |
|---|---|---|
6984
|
Kiani, M; Ylivainio, K Methods for testing short- and long-term phosphorus fertilizing efficiency of products with varying solubility(2024) | |
| 25061
|
Nicksy, J; Amiro, B; Entz, M Recycled nutrients supply phosphorus for organically-managed wheat and forage crops(2022)Nutrient Cycling In Agroecosystems, 123, 3 | |
| 24469
|
Nicksy, J; Entz, MH Recycled nutrients as a phosphorus source for Canadian organic agriculture: a perspective(2021)Canadian Journal Of Soil Science, 101, 4 | |
| 22165
|
Huygens, D; Saveyn, HGM Agronomic efficiency of selected phosphorus fertilisers derived from secondary raw materials for European agriculture. A meta-analysis(2018)Agronomy For Sustainable Development, 38.0, 5 | |
| 16601
|
Nenov, V; Peeva, G; Yemendzhiev, H; Stancheva, M; Zerouq, F Phosphorus consumption. From linear to circular flow(2020)Moroccan Journal Of Chemistry, 8, 4 | |
| 27512
|
Kokulan, V; Schneider, K; Macrae, ML; Wilson, H Struvite application to field corn decreases the risk of environmental phosphorus loss while maintaining crop yield(2024) | |
| 24378
|
Boh, MY; Clark, OG Nitrogen and phosphorus flows in Ontario's food systems(2020) | |
| 14472
|
Macintosh, KA; Mayer, BK; McDowell, RW; Powers, SM; Baker, LA; Boyer, TH; Rittmann, BE Managing Diffuse Phosphorus at the Source versus at the Sink(2018)Environmental Science & Technology, 52, 21 | |
| 27103
|
Hidalgo, D; Corona, F; Martín-Marroquín, JM Nutrient recycling: from waste to crop(2021)Biomass Conversion And Biorefinery, 11.0, 2 | |
| 4551
|
Altamira-Algarra, B; Puigagut, J; Day, JW; Mitsch, WJ; Vymazal, J; Hunter, RG; García, J A review of technologies for closing the P loop in agriculture runoff: Contributing to the transition towards a circular economy(2022) |