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dc.contributor.authorOttman, Mike*
dc.contributor.authorRovey, Jason*
dc.contributor.authorMostafa, Ayman*
dc.contributor.authorBurayu, Worku*
dc.date.accessioned2015-07-14T16:02:30Zen
dc.date.available2015-07-14T16:02:30Zen
dc.date.issued2015-06en
dc.identifier.urihttp://hdl.handle.net/10150/560411en
dc.description10 pp.en
dc.description.abstractPhosphorus is the primary fertilizer nutrient needed by alfalfa in Arizona. The objective of this study is to determine the effect of P fertilizer rate on alfalfa yield and soil test P. A phosphorus fertilizer rate study was conducted with alfalfa in Buckeye, AZ where 11-52-0 was applied at 0, 200, 400, and 800 lb fertilizer/acre in February, 2014 after the first cutting. Alfalfa hay yield was increased by phosphorus fertilizer application up to the cutting on July 30, but not thereafter. No differences in yield were found among the fertilizer rates of 200,400, and 800 lb 11-52-0/acre. Soil test phosphorus increased directly proportional to fertilizer rate, but eventually decreased close to deficient levels 3-5 months after fertilizer application. It is not known if additional fertilizer applications throughout the season would increase yield. Fertilizer rates higher than 200 lb 11-52-0/acre were not beneficial under the conditions of this study.
dc.language.isoen_USen
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en
dc.relation.ispartofseriesUniversity of Arizona Cooperative Extension Service and Agricultural Experiment Station Bulletin AZ1672-2015en
dc.sourceCALS Publications Archive. The University of Arizona.en_US
dc.subjectMono-ammonium phosphateen
dc.subjectHay yielden
dc.subjectOlsen phosphateen
dc.subjectSoil Pen
dc.titlePhosphorus Fertilizer Rate Effect on Alfalfa Yield and Soil Test P, Buckeye, 2014en_US
dc.typetexten_US
dc.typeBooken_US
dc.contributor.departmentUniversity of Arizona, College of Agriculture and Life Sciencesen
dc.contributor.departmentRovey Farming Companyen
dc.contributor.departmentMaricopa County Cooperative Extensionen
refterms.dateFOA2018-06-14T20:58:36Z
html.description.abstractPhosphorus is the primary fertilizer nutrient needed by alfalfa in Arizona. The objective of this study is to determine the effect of P fertilizer rate on alfalfa yield and soil test P. A phosphorus fertilizer rate study was conducted with alfalfa in Buckeye, AZ where 11-52-0 was applied at 0, 200, 400, and 800 lb fertilizer/acre in February, 2014 after the first cutting. Alfalfa hay yield was increased by phosphorus fertilizer application up to the cutting on July 30, but not thereafter. No differences in yield were found among the fertilizer rates of 200,400, and 800 lb 11-52-0/acre. Soil test phosphorus increased directly proportional to fertilizer rate, but eventually decreased close to deficient levels 3-5 months after fertilizer application. It is not known if additional fertilizer applications throughout the season would increase yield. Fertilizer rates higher than 200 lb 11-52-0/acre were not beneficial under the conditions of this study.


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