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dc.contributor.authorNILAKHE, S. S.eng
dc.contributor.authorSILVA, A. A. daeng
dc.contributor.authorSOUZA FILHO, J. A. G. deeng
dc.date.accessioned2019-10-28T18:05:36Z-
dc.date.available2019-10-28T18:05:36Z-
dc.date.created1997-02-28
dc.date.issued1984
dc.identifier.citationPesquisa Agropecuária Brasileira, Brasília, DF, v. 19, n. 9, p. 1065-1074, set. 1984.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/319774-
dc.descriptionA sampling study of spittlebug adults in pastures of Brachiaria decumbens was conduced to find an appropriate number of sweep-net sweeps/sample. Considering the relative variation (SE/X) X 100, and the total number of sweeps in the sampling, 10 sweeps/sample were found to be better than 5,20 our 40. The number of samples required for a particular level of relative variation at population densities>16 spittlebug adults/10 sweeps remained the same, whereas at densities<16, the number increased inversely. A regression model to convert relative estimates obtained by sweep-net method to the absolute estimate was presented. Considering the degree of precision and the time spent in sampling, the sweep-net method was superior to cage method. The distribution pattern of numbers of spittlebug adults in samples of 10 sweep-net sweeps, generally fitted the poisson series. A sequential plan presented here would reduce the sampling time over the conventional (fixed sample numbers) sampling.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectSpittlebugseng
dc.subjectPastureeng
dc.titleSampling procedures for spittlebug adults in pastures of Brachiaria decumbens.eng
dc.typeArtigo de periódicoeng
dc.date.updated2019-10-28T18:05:36Z
dc.subject.thesagroAmostragemeng
dc.subject.thesagroBrachiaria Decumbenseng
dc.subject.thesagroCigarrinha das Pastagenseng
dc.subject.thesagroDeois Flavopictaeng
dc.subject.thesagroPastagemeng
dc.subject.thesagroZulia Entrerianaeng
dc.subject.nalthesaurusCercopidaeeng
dc.subject.nalthesaurussamplingeng
dc.description.notesTítulo em português: Procedimento de amostragem de adultos de cigarrinhas em pastagens de Brachiaria decumbens.eng
riaa.ainfo.id319774eng
riaa.ainfo.lastupdate2019-10-28
dc.contributor.institutionIICA; CNPGC; EMPAER.eng
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