Implications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice

Nitrogen (N) response studies in rice (<i>Oryza sativa</i> L.) are conducted to provide grower recommendations with economically optimum N rates (EONRs). This study was conducted to determine if experimental design alters the predicted EONR for rice. The effects of experimental design an...

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Autores principales: Richard Lee Atwill, Larry Jason Krutz, Gene Dave Spencer, Jason A. Bond, Kambham Raja Reddy, Jeffrey Gore, Timothy W. Walker, Debbie Boykin
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Lenguaje:EN
Publicado: MDPI AG 2021
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spelling oai:doaj.org-article:94eb2575511144ada9bed85be656bed52021-11-25T16:10:42ZImplications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice10.3390/agronomy111122962073-4395https://doaj.org/article/94eb2575511144ada9bed85be656bed52021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2296https://doaj.org/toc/2073-4395Nitrogen (N) response studies in rice (<i>Oryza sativa</i> L.) are conducted to provide grower recommendations with economically optimum N rates (EONRs). This study was conducted to determine if experimental design alters the predicted EONR for rice. The effects of experimental design and soil texture on predicted EONR were investigated near Arcola, Greenville, Minter City, and Shaw, MS on soil textures ranging from sandy loam to clay. The response of rice grain yield to seven N fertilizer rates was fitted with a quadratic equation, and the quadratic trend was compared between the randomized complete block (RCB) and split-plot (SP) designs. No differences were detected between RCB and SP designs for rice grain yield response to N rate; therefore, either design, RCB or SP, would be appropriate for use in N response studies for rice.Richard Lee AtwillLarry Jason KrutzGene Dave SpencerJason A. BondKambham Raja ReddyJeffrey GoreTimothy W. WalkerDebbie BoykinMDPI AGarticlericenitrogen rateexperimental designEONRsplit-plotrandomized complete blockAgricultureSENAgronomy, Vol 11, Iss 2296, p 2296 (2021)
institution DOAJ
collection DOAJ
language EN
topic rice
nitrogen rate
experimental design
EONR
split-plot
randomized complete block
Agriculture
S
spellingShingle rice
nitrogen rate
experimental design
EONR
split-plot
randomized complete block
Agriculture
S
Richard Lee Atwill
Larry Jason Krutz
Gene Dave Spencer
Jason A. Bond
Kambham Raja Reddy
Jeffrey Gore
Timothy W. Walker
Debbie Boykin
Implications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice
description Nitrogen (N) response studies in rice (<i>Oryza sativa</i> L.) are conducted to provide grower recommendations with economically optimum N rates (EONRs). This study was conducted to determine if experimental design alters the predicted EONR for rice. The effects of experimental design and soil texture on predicted EONR were investigated near Arcola, Greenville, Minter City, and Shaw, MS on soil textures ranging from sandy loam to clay. The response of rice grain yield to seven N fertilizer rates was fitted with a quadratic equation, and the quadratic trend was compared between the randomized complete block (RCB) and split-plot (SP) designs. No differences were detected between RCB and SP designs for rice grain yield response to N rate; therefore, either design, RCB or SP, would be appropriate for use in N response studies for rice.
format article
author Richard Lee Atwill
Larry Jason Krutz
Gene Dave Spencer
Jason A. Bond
Kambham Raja Reddy
Jeffrey Gore
Timothy W. Walker
Debbie Boykin
author_facet Richard Lee Atwill
Larry Jason Krutz
Gene Dave Spencer
Jason A. Bond
Kambham Raja Reddy
Jeffrey Gore
Timothy W. Walker
Debbie Boykin
author_sort Richard Lee Atwill
title Implications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice
title_short Implications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice
title_full Implications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice
title_fullStr Implications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice
title_full_unstemmed Implications of Experimental Design on Predicting Economic Optimum Nitrogen Rates in Rice
title_sort implications of experimental design on predicting economic optimum nitrogen rates in rice
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/94eb2575511144ada9bed85be656bed5
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