4 set. WILTON DE O. BUSSABPEDRO A. MORETTIN ESTATÍSTICA BÁSICA www. Pedro A. MorettinWilton de O. Bussab 6 a. View Homework Help – Estatística Básica – Morettin e Bussab from ESTATÍSTI at UFF. Estatistica Basica · Calculo · Analise de Series Temporais · Econometria Financeira · Introducao ao Calculo · Ondas e Ondaletas · Wavelets in Functional Data.

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No base fertilization and coverage for any culture were used. However, according to the central limit theorem, even if the basic population is not normal, the distribution of the sample mean will be approximately normal for samples greater than 30 observations Fonseca and Martins, ; Bussab and Morettin, In this scenario, the present research aimed to determine the sample size for the estimation of biomass and productivity expected values of Canavalia ensiformis and Dolichos lablab.

The spacing used was 0. Given these basicaa in relation to normality, it can be inferred that the data from these variables provide credibility to the scaling of the sample size study.

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Considering these same parameters for the D. However, other factors must be analyzed for planning experiments with these green manures, such as seed germination, plant density, spacing to be used and type of harvesting and weeding manual or mechanical.

Forty five plants were randomly selected in the experimental area of each crop to determine fresh mass, dry mass and yield. Teodoro 1Larissa P. Moreover, the statistical values revealed existence of genetic variability among C. Results and Discussion The calculation of central tendency, variability, asymmetry, kurtosis and Lilliefors test relatively to morphological variables fresh mass, dry mass and C.

BUSSAB E MORETTIN Estatística Básica 6a Edição ( 1)

Sample size to estimate the average of each character in C. In agricultural systems in areas of Cerrado are used intercropped with maize and perennial crops, because tolerates partial shade Carvalho and Amabile, Thus, the objective of this research was to estatistuca the sample size to estimate biomass and productivity of C.

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From a practical standpoint, it can be inferred that it is difficult to obtain average estimates of the variables evaluated in C. The Cerrado occupation has occurred quickly, based on intensive production systems, which have increased the processes of soil degradation Silva et al. Conclusions Canavalia ensiformi showed significant higher values for the mean fresh mass production, dry mass and productivity in relation to Dolichos lablab estatisgica, being recommended for cultivation in Brazilian Cerrado.

Sample size to estimate biomass and productivity of Canavalia ensiformis and Dolichos lablab. These processes result in impacts that often generate the inefficiency of agricultural systems, with frequent need for interventions through conservation practices to maintain the productive potential of the soil.

Analyzing the variation coefficient of both green manures verifies a superior magnitude of fresh and dry masses and productivity, suggesting the need of higher sample sizes for the estimation of the fresh and dry mass relative to average byssab.

Green manure brings numerous benefits that promote essentially the estatisfica and conservation of agro-systems, and its implementation is fundamental to Brazilian Cerrado region.

Estatística Básica, 6ª Ed Morettin e Bussab – Documents

In this context, green manure becomes fundamental to the Cerrado region, because it promotes protection, improvement and maintenance of soil quality, as well as substantial increases in soil organic matter and nutrients, benefiting agroecosystems Carvalho et al. At maturation, 45 plants were randomly selected in the experimental area of each crop to determine fresh mass, dry mass and productivity.

Densidades de semeadura de leguminosas na melhoria da qualidade do solo e na produtividade do milho. Porto Alegre, Bookman, p. The legumes, in addition to providing similar benefits to other species, have the ability to accumulate N through biological fixation Silva et al. Measures of central tendency, variability, asymmetry and kurtosis were calculated and normality of the variables under study was checked by the Lilliefors test.

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The calculation of central tendency, variability, asymmetry, kurtosis and Lilliefors test relatively to morphological variables fresh mass, dry mass and C.

Tamanho da amostra para estimativa da biomassa e produtividade de Canavalia ensiformis e Dolichos lablab. According to Teodoro et al.

Embrapa Cerrados, 28 p. Como citar este artigo. Introduction The Cerrado occupation has occurred quickly, based on intensive production systems, which have increased the processes of soil degradation Silva et al.

Variables evaluated in C. The sample size is directly proportional to the variability of the variables under study and to the desired confidence degree estztistica the estimate and inversely proportional to the estimation error allowed, initially established by the researcher Bar-betta et al.

It is important to mention that given the observed results, the jack bean provides greater dry mass production and consequently greater soil cover in relation to D.

It does not fit in this study the judgment of maximum estimation error acceptable, getting the use this information to the researcher for his experimental design. Canavalia ensiformi showed significant higher values for the mean fresh mass production, dry mass and productivity in relation to Dolichos lablabbeing recommended for cultivation in Brazilian Cerrado. Moreover, this is a crop that can be considered for family farms because of its high seed production and high prices in the market.

Data were extrapolated to t ha -1and measures of central tendency, variability, asymmetry and kurtosis were calculated and normality of the variables under study was checked by Lilliefors test Campos, Among the desirable characteristics for selection of species modettin green manure, stands out mainly dry mass production, because it is related to the capacity to increase nutrient by symbiosis with microorganisms, soil cover and recycling of nutrients Chaves and Calegari,