Frontiers Publishing Partnerships Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization
Por um escritor misterioso
Last updated 10 julho 2024
![Frontiers Publishing Partnerships Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization](https://www.frontierspartnerships.org/files/Articles/10737/sjss-12-10737-HTML-r1/image_m/sjss-12-10737-t001.jpg)
Phosphorus (P) is an essential nutrient for all organisms, and many crops require P fertilization for optimum yield. However, there are concerns about the P in agriculture, including the sustainability of phosphate sources for fertilizers and water quality problems from P loss in runoff from agricultural lands. Most crops do not use all of the P added each year as fertilizer, leaving residual soil P that could potentially be used by subsequent crops, minimizing the need for additional fertilization. However, more information is needed to understand soil residual P pools, and their availability to crops. In Swift Current, SK, Canada, a long-term study was initiated in 1967, with four wheat-based rotations [including continuous wheat (CW), fallow-wheat-wheat (FWW), fallow-wheat (FW) and lentil-wheat (WL), with P fertilization and with or without nitrogen (N) fertilization. In 1995, P fertilization ceased on subplots in the CW and FWW rotations, and in 2008 for the FW and WL rotations. This study examined changes in soil P pools (total P, organic P, and Olsen P) from 1995-2015 for CW and FWW rotations and from 2008-2016 for FW and WL rotations, plus crop yield and grain and straw N and P concentrations. Long-term P addition increased concentrations of soil total and Olsen P in FWW, CW and FW rotation, particularly in plots without N fertilization. However, calculated P depletions based on fertilizer addition and crop P removal were negative only for plots without N fertilization. Cessation of P fertilization reduced concentrations of soil total and Olsen P, especially in plots with N fertilization. Annual yields were affected more by N fertilization and precipitation than P fertilization. Grain and straw P concentrations were not significantly reduced with short-term P cessation in FW and WL rotation, but were reduced with longer-term P fertilizer cessation in FWW and CW rotations.
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Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization
![Frontiers Publishing Partnerships Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization](https://pubs.acs.org/cms/10.1021/acs.est.6b05491/asset/images/medium/es-2016-05491y_0005.gif)
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PDF) Phosphorus biogeochemistry differs in rhizosphere compared to bulk soils in long-term wheat fertilization trials in Saskatchewan, Canada
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PDF) Rotation and Fertilization Effects on Soil Quality and Yields in a Long Term Field Experiment
![Frontiers Publishing Partnerships Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization](https://www.frontiersin.org/files/Articles/667394/fmicb-12-667394-HTML-r1/image_m/fmicb-12-667394-g003.jpg)
Frontiers Pulse Frequency in Crop Rotations Alters Soil Microbial Community Networks and the Relative Abundance of Fungal Plant Pathogens
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Phosphorus for Sustainable Development Goal target of doubling smallholder productivity
![Frontiers Publishing Partnerships Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization](https://onlinelibrary.wiley.com/cms/asset/155ccb29-ac7c-4b72-bb4e-6b1076989afb/gcb17001-fig-0004-m.png)
Global Change Biology, Environmental Change Journal
![Frontiers Publishing Partnerships Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization](https://openpress.usask.ca/app/uploads/sites/81/2020/08/fig15_1-e1622473026843.png)
Soil Health and Management – Digging into Canadian Soils
![Frontiers Publishing Partnerships Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41586-022-05220-z/MediaObjects/41586_2022_5220_Fig1_HTML.png)
Global trends of cropland phosphorus use and sustainability challenges
![Frontiers Publishing Partnerships Changes in Soil Phosphorus Pools in Long-Term Wheat-Based Rotations in Saskatchewan, Canada With and Without Phosphorus Fertilization](https://pub.mdpi-res.com/sustainability/sustainability-14-04875/article_deploy/html/images/sustainability-14-04875-g001.png?1650350966)
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