TY - JOUR
T1 - Evaluation of electrochemically precipitated struvite as a fertilizer-phosphorus source in flood-irrigated rice
AU - Omidire, Niyi S.
AU - Brye, Kristofor R.
AU - Roberts, Trenton L.
AU - Kekedy-Nagy, Laszlo
AU - Greenlee, Lauren
AU - Gbur, Edward E.
AU - Mozzoni, Leandro A.
N1 - Funding Information:
This work was supported by a research grant from the National Science Foundation INFEWS/T3 Program (Award #1739473). Ryder Anderson and Jonathan Brye are gratefully acknowledged for their assistance in the field.
Publisher Copyright:
© 2021 The Authors. Agronomy Journal © 2021 American Society of Agronomy.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - Phosphorus (P) is a major contaminant in many wastewater sources and has gained interest due to the role P has in eutrophication of receiving waters. Recycling P from wastewater as the mineral struvite (MgNH4PO4 · 6H2O) could be a promising option to reduce P discharge into receiving waters and could potentially provide an alternative fertilizer-P source for crop production. The objective of this study was to evaluate the effects of two struvite materials (i.e., electrochemically precipitated struvite [ECST] and chemically precipitated struvite [CPST]) relative to several other common fertilizer-P sources (i.e., triple super phosphate [TSP], monoammonium phosphate [MAP], diammonium phosphate [DAP], and rock phosphate [RP]) on the response of a pureline rice (Oryza sativa L.) cultivar grown under flood-irrigation in a P-deficient, silt-loam soil (Typic Glossaqualfs) in eastern Arkansas. In 2019, rice grain yield did not differ (P >.05) among fertilizer-P sources, whereas in 2020, rice grain yield was greater from TSP (13.1 Mg ha−1) than that from ESCT (11.0 Mg ha−1) or CPST (12.7 Mg ha−1). Rice aboveground dry matter, aboveground and belowground tissue and grain P and N concentrations, aboveground and grain tissue P uptake, and aboveground tissue N concentration from ECST and CPST did not differ (P >.05) from those from TSP, MAP, DAP, RP, or an unamended control. The similarities in rice responses compared with other commonly used, commercially available fertilizer-P sources suggest that struvite materials have the potential to be an alternative fertilizer-P source option for flood-irrigated rice production.
AB - Phosphorus (P) is a major contaminant in many wastewater sources and has gained interest due to the role P has in eutrophication of receiving waters. Recycling P from wastewater as the mineral struvite (MgNH4PO4 · 6H2O) could be a promising option to reduce P discharge into receiving waters and could potentially provide an alternative fertilizer-P source for crop production. The objective of this study was to evaluate the effects of two struvite materials (i.e., electrochemically precipitated struvite [ECST] and chemically precipitated struvite [CPST]) relative to several other common fertilizer-P sources (i.e., triple super phosphate [TSP], monoammonium phosphate [MAP], diammonium phosphate [DAP], and rock phosphate [RP]) on the response of a pureline rice (Oryza sativa L.) cultivar grown under flood-irrigation in a P-deficient, silt-loam soil (Typic Glossaqualfs) in eastern Arkansas. In 2019, rice grain yield did not differ (P >.05) among fertilizer-P sources, whereas in 2020, rice grain yield was greater from TSP (13.1 Mg ha−1) than that from ESCT (11.0 Mg ha−1) or CPST (12.7 Mg ha−1). Rice aboveground dry matter, aboveground and belowground tissue and grain P and N concentrations, aboveground and grain tissue P uptake, and aboveground tissue N concentration from ECST and CPST did not differ (P >.05) from those from TSP, MAP, DAP, RP, or an unamended control. The similarities in rice responses compared with other commonly used, commercially available fertilizer-P sources suggest that struvite materials have the potential to be an alternative fertilizer-P source option for flood-irrigated rice production.
UR - http://www.scopus.com/inward/record.url?scp=85121357807&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85121357807&partnerID=8YFLogxK
U2 - 10.1002/agj2.20917
DO - 10.1002/agj2.20917
M3 - Article
AN - SCOPUS:85121357807
SN - 0002-1962
VL - 114
SP - 739
EP - 755
JO - Journal of Production Agriculture
JF - Journal of Production Agriculture
IS - 1
ER -
