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This research aims to understand the efficiency of nitrogen release from papermill biosolids as fertilizer in agriculture.

Nitrogen value of papermill biosolids used as fertilizer on temperate agricultural soils: a meta-analysis

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Meta-analysis identifies factors influencing nitrogen release from papermill biosolids in crops, indicating better application practices.

This research aims to understand the efficiency of nitrogen release from papermill biosolids as fertilizer in agriculture.
Conducted a meta-analysis of 26 studies with 121 observations on nitrogen efficiency.
Investigated variables including carbon-to-nitrogen ratio and application rates on crop yield.
Analyzed differences in nitrogen recovery in crops depending on their nitrogen requirements.
17% of total nitrogen in papermill biosolids was recovered in crops, equivalent to 39% of fertilizer nitrogen.
Higher nitrogen recovery was noted in crops with high nitrogen requirements and longer growing seasons.
Effectiveness of nitrogen accumulation increased with both low and high carbon-to-nitrogen ratios.

Gagnon et al. (2026) studied this question.

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View Full Paper

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Authors

Meta-analysis identifies factors influencing nitrogen release from papermill biosolids in crops, indicating better application practices.

This research aims to understand the efficiency of nitrogen release from papermill biosolids as fertilizer in agriculture.
Conducted a meta-analysis of 26 studies with 121 observations on nitrogen efficiency.
Investigated variables including carbon-to-nitrogen ratio and application rates on crop yield.
Analyzed differences in nitrogen recovery in crops depending on their nitrogen requirements.
17% of total nitrogen in papermill biosolids was recovered in crops, equivalent to 39% of fertilizer nitrogen.
Higher nitrogen recovery was noted in crops with high nitrogen requirements and longer growing seasons.
Effectiveness of nitrogen accumulation increased with both low and high carbon-to-nitrogen ratios.

Gagnon et al. (2026) studied this question.

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