Struvite Effects on Rice Growth and Productivity under Flood-Irrigation in the Greenhouse

In recent years, electrochemical precipitation has gained interest as an alternative method for the synthesis of various minerals, including struvite, from waste streams that can serve fertilizer. Studies in lowland cultivations, specifically rice (Oryza sativa) under flood-irrigated conditions, evaluating struvite a possible phosphorus (P) fertilizer source have been limited. The objective this study was to evaluate response electrochemically precipitated (ECST) compared triple superphosphate (TSP), diammonium phosphate (DAP), chemically (CPST), and unamended control (UC), grown flooded-soil conditions greenhouse. Aboveground vegetative dry matter (DM) P concentration greatest UC (0.18%) lowest DAP (0.08%). Root DM Mg ECST (0.13%) TSP (0.10%). Grain yield (11.2 Mg•ha−1) (4.0 Mg•ha−1). N, P, K, uptake were consistently UC. N 1.1 times greater CPST than ECST, while all other measured properties did not differ between struvite-P sources. many similar responses materials (ECST CPST) demonstrate particularly is valid fertilizer-P rice-production systems. Further studies should potential environmental implications (i.e., runoff water quality greenhouse gas emissions) use could affect agricultural sustainability.