| Registro completo |
| Provedor de dados: |
Ciência Rural
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| País: |
Brazil
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| Título: |
Optimal plot size for experiments with black oats and the common vetch
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| Autores: |
Cargnelutti Filho,Alberto
Souza,Jéssica Maronez de
Pezzini,Rafael Vieira
Neu,Ismael Mario Marcio
Silveira,Daniela Lixinski
Procedi,Andréia
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| Data: |
2020-01-01
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| Ano: |
2020
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| Palavras-chave: |
Avena strigosa
Cover crop
Experimental design
Uniformity trial
Vicia sativa
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| Resumo: |
ABSTRACT: The aim of this study was to determine the optimal plot size for evaluating the fresh weight of black oats (Avena strigosa Schreb) and the common vetch (Vicia sativa L.) in scenarios comprising combinations of the number of treatments, number of replications and levels of precision. Fifteen uniformity trials were conducted with single-crop and intercropped black oats and vetch. Fresh weight was evaluated in 540 basic experimental units (BEU), each of 1 m × 1 m (36 BEU per trial). The Smith index of soil heterogeneity (1938) was estimated. Plot size was determined using the HATHEWAY method (1961), in scenarios comprising combinations of i treatments (i = 5, 10, 15 and 20), r replications (r = 3, 4, 5, 6, 7 and 8) and d levels of precision (d = 2%, 4%, 6%, 8%, 10%, 12%, 14%, 16%, 18% and 20%). To evaluate the fresh weight of monocropped or intercropped black oats and vetch in a completely randomized or randomized complete block design, with from 5 to 20 treatments and five replications, plots of 10 m2 are sufficient to identify, at a probability of 0.05, significant differences between treatments of 10% of the overall mean value of the experiment.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300203
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| Editor: |
Universidade Federal de Santa Maria
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| Relação: |
10.1590/0103-8478cr20190123
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| Formato: |
text/html
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| Fonte: |
Ciência Rural v.50 n.3 2020
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| Direitos: |
info:eu-repo/semantics/openAccess
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