Site-specific nutrient management for rice using soil properties to adjust phosphorus and potassium supply from compound NPK fertilizer

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cg.authorship.typesCGIAR and advanced research instituteen
cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationNational Research and Innovation Agencyen
cg.contributor.affiliationAssessment Institute for Agricultural Technologyen
cg.contributor.affiliationInternational Rice Research Instituteen
cg.contributor.affiliationTexas Tech Universityen
cg.contributor.affiliationEast Kalimantan Agricultural Instrument Standardization Agencyen
cg.contributor.donorIndonesian Agency for Agricultural Research and Developmenten
cg.contributor.donorInternational Rice Research Instituteen
cg.creator.identifierSetia Sari Girsang: 0000-0003-2318-1273en
cg.creator.identifierRowena Castillo: 0009-0001-8515-6164en
cg.creator.identifierMahyuddin Syam: 0009-0000-5061-9563en
cg.creator.identifierZulkifli Zaini: 0009-0001-1696-9313en
cg.creator.identifierSunendar Kartaatmadja: 0009-0004-7470-4155en
cg.creator.identifierIrish Lorraine Pabuayon: 0000-0003-3964-7058en
cg.creator.identifierRomalene Limpiada: 0009-0009-2779-9645en
cg.creator.identifierSamijan: 0000-0002-2914-859Xen
cg.creator.identifierRohmad Budiono: 0000-0003-3265-0801en
cg.creator.identifierRoland Buresh: 0000-0003-4236-7735en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1016/j.fcr.2025.109864en
cg.identifier.urlhttps://www.sciencedirect.com/science/article/abs/pii/S0378429025001297?via%3Dihuben
cg.isijournalISI Journalen
cg.issn0378-4290en
cg.issue109864en
cg.journalField Crops Researchen
cg.reviewStatusPeer Reviewen
cg.volume326en
dc.contributor.authorGirsang, Setia Sarien
dc.contributor.authorCastillo, Rowena L.en
dc.contributor.authorSyam, Mahyuddinen
dc.contributor.authorZaini, Zulkiflien
dc.contributor.authorKartaatmadja, Sunendaren
dc.contributor.authorSuyamtoen
dc.contributor.authorDela Torre, Judith Carlaen
dc.contributor.authorPabuayon, Irish Lorraine B.en
dc.contributor.authorLimpiada, Romalene A.en
dc.contributor.authorWaluyoen
dc.contributor.authorHelmien
dc.contributor.authorSamijanen
dc.contributor.authorBudiono, Rohmaden
dc.contributor.authorHatta, Muhammaden
dc.contributor.authorNurhayatien
dc.contributor.authorKamandalu, Ngurah Bagusen
dc.contributor.authorSusanto, Bambangen
dc.contributor.authorParhusip, Dorkasen
dc.contributor.authorAbidin, Zainalen
dc.contributor.authorBuresh, Roland J.en
dc.date.accessioned2025-05-15T07:42:00Zen
dc.date.available2025-05-15T07:42:00Zen
dc.identifier.urihttps://hdl.handle.net/10568/174606
dc.titleSite-specific nutrient management for rice using soil properties to adjust phosphorus and potassium supply from compound NPK fertilizeren
dcterms.abstract"Context or problem: Compound fertilizers containing nitrogen (N), phosphorus (P), and potassium (K) are often applied to rice (Oryza sativa L.) in Asia, but the fixed P:K ratio of these fertilizers can restrict the adjustment of P and K rates to match crop needs. Objective or research question: We hypothesized that site-specific nutrient management (SSNM) using a locally available NPK fertilizer could increase rice yield and then that soil properties could be used to better adjust nutrient inputs to match crop needs. Methods: Yield responses to added N, P, and K in on-farm nutrient omission plot technique (NOPT) trials across Indonesia were used to develop an SSNM practice, which was evaluated relative to farmer’s fertilizer practice (FFP) in 528 on-farm trials with lowland rice. Relationships of soil properties with yield responses were then examined across 38 additional trials on diverse soils. Results: An SSNM practice with one NPK fertilizer supplying all P and K increased yield by 0.4 Mg ha−1 and increased gross return above fertilizer cost by 173 USD ha−1 compared to FFP. The SSNM practice used less N and P but slightly more K than FFP. Median relative yields — defined as the ratio of yield in a nutrient omission plot and yield in a full-fertilizer plot — were 0.75 without added N, 0.94 without added P, and 0.94 without added K for 252 NOPT trials. Based on NOPT trials, the SSNM practice could be improved by applying more K at some locations because the P:K ratio of 0.52 (P2O5:K2O = 1) for the NPK fertilizer was higher than the estimated optimum to meet crop needs. Higher K requirement was associated with soil pH < 5.5, soil K saturation < 1.8 %, and soil base saturation < 40 %. Conclusions: Farmer’s P use for rice can often be reduced with an upper limit for the P rate set to match the net removal of P by the crop. An NPK fertilizer with P:K ratio = 0.44–0.52 would meet P and K requirements at many locations, and a mid-season topdressing of additional K could be targeted to locations requiring more K. Higher K use could target areas with soil pH < 5.5, which could be approximated from soil maps and verified with soil test kits. Implications or significance: The examination of associations between crop response to a nutrient and soil properties, other than soil nutrient status, merits use elsewhere to identify soil characteristics helpful in fine-tuning SSNM."en
dcterms.accessRightsLimited Access
dcterms.audienceCGIARen
dcterms.audienceAcademicsen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceDonorsen
dcterms.audienceFarmersen
dcterms.audienceScientistsen
dcterms.available2025-03-23en
dcterms.bibliographicCitationGirsang, Setia Sari, Rowena L. Castillo, Mahyuddin Syam, Zulkifli Zaini, Sunendar Kartaatmadja, Judith Carla Dela Torre, Irish Lorraine B. Pabuayon et al. "Site-specific nutrient management for rice using soil properties to adjust phosphorus and potassium supply from compound NPK fertilizer." Field Crops Research 326 (2025): 109864.en
dcterms.issued2025-03-26en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherElsevier BVen
dcterms.subjectcrop yielden
dcterms.subjecteconomic analysisen
dcterms.subjectfield experimentationen
dcterms.subjectbase saturationen
dcterms.subjectsoil fertilityen
dcterms.subjectsoil testingen
dcterms.subjectsoil pHen
dcterms.subjectsoil propertiesen
dcterms.subjectnutrient requirementsen
dcterms.subjectnutrient uptakeen
dcterms.subjectnutrient availabilityen
dcterms.subjectspecific nutrient managementen
dcterms.subjectcompound fertilizersen
dcterms.subjectoryza sativaen
dcterms.typeJournal Article

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