Data for: EFFECTS OF RESIDUAL STRUVITE GRANULES AND SAMPLE PREPARATION ON SOIL TEST PHOSPHORUS ACROSS CONTRASTING SOILS IN AN INCUBATION STUDY

Description

This dataset contains the experimental measurements from a 140-day soil incubation study evaluating phosphorus (P) availability from struvite, a slow-release fertilizer recovered from wastewater. The primary objective was to determine how residual struvite granules and sample preparation methods (specifically, physical grinding) artificially elevate or conceal extractable Olsen-P concentrations in standard soil tests. Methodology: The experiment was conducted using 20 g samples of two contrasting soils. Samples were subjected to four fertilizer treatments at a P application rate of 215 mg kg⁻¹: Mono Ammonium Phosphate (MAP), struvite with residual granules retained for extraction, struvite with residual granules removed before extraction, and an unamended control. Extractable P was measured over 140 days to compare the effects of two sample preparation methods (grinding vs. no grinding) and to track the dissolution and P-release dynamics of the fertilizers. The uploaded files include: [Result for Incubation study.csv]: Raw measurements of extractable phosphorus (Olsen-P) and struvite dissolution data collected over the experimental period.

Steps to reproduce

Soil samples (20 g) from two contrasting soils were incubated over 140 days under four fertilizer treatments (MAP, struvite with granules retained, struvite with granules removed, and an unamended control) at a P application rate of 215 mg kg⁻¹. Samples were subjected to two preparation methods (grinding vs. no grinding) prior to Olsen-P extraction.

Institutions

• University of Manitoba

  Manitoba, Winnipeg

Categories

Licence