Morettin Bussab Estatistica Basica 6ª edicao joseliza Amadeu. Uploaded by. joseliza Amadeu. Download with Google Download with Facebook. Bussab, W.O. and Morettin, P.A. () Estatística básica. 5th Edition, Saraiva, Sao Paulo. has been cited by the following article: TITLE: Climatic Variations and . Request PDF on ResearchGate | Basic Statistics (Estatistica Basica, The Student t test (Morettin & Bussab, ) was used to check for possible statistically.
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Results and Discussion The calculation of central tendency, busssab, asymmetry, kurtosis and Lilliefors test relatively to morphological variables fresh mass, dry mass and C.
Variables evaluated in C.
Estatística Básica – Morettin e Bussab | Rodolfo Nunes –
Given these considerations in relation to normality, it can be inferred that the data from these variables provide credibility to the scaling of the sample size study. Considering these same parameters for the D. The legumes, in addition to providing similar benefits to other species, have the ability to accumulate N through biological fixation Silva et al.
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 absica this research was to determine the sample size to estimate biomass and productivity of C. Conclusions Canavalia ensiformi showed significant higher values for the mean fresh mass production, dry mass and productivity in relation to Dolichos lablabmoretttin recommended moretin cultivation in Brazilian Cerrado.
These results showed lower magnitude than those observed by Melo that in evaluating the fresh and dry mass production in different green manures did not bussav statistical difference in the C. Como citar este artigo. The calculation of central tendency, variability, asymmetry, kurtosis and Lilliefors test relatively to morphological variables fresh mass, dry mass and C.
Teodoro 1Larissa P. Densidades de semeadura de leguminosas na melhoria da qualidade do solo e na produtividade do milho.
Introduction The Cerrado occupation has occurred quickly, based on intensive production systems, which have increased the processes of soil degradation Silva et al. 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. Sample size to estimate the average of each character in C.
BUSSAB E MORETTIN Estatística Básica 6a Edição ( 1)
The Cerrado occupation has occurred quickly, based on intensive production systems, which have increased the processes of soil degradation Silva et al.
Sample size to estimate biomass and productivity of Canavalia ensiformis and Dolichos lablab. The spacing used was 0.
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, Tamanho da amostra para estimativa da biomassa e produtividade de Canavalia ensiformis e Dolichos lablab.
In this context, green manure becomes fundamental to the Cerrado region, because it promotes protection, improvement morethin maintenance of soil quality, as well as substantial increases in soil organic matter and nutrients, benefiting agroecosystems Carvalho et al. Moreover, this is a crop that can be considered for family farms because of its high seed production and high prices in the market. Analyzing the variation coefficient of both green manures verifies a superior magnitude of fresh and dry basjca and productivity, suggesting the need of higher sample sizes for the estimation of the fresh and dry mass relative to average morethin.
According to Baslca 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.
busdab The sample size is directly proportional to the variability of the variables under study and to the desired confidence degree in the estimate and inversely proportional to the estimation error allowed, initially established by the researcher Bar-betta et al. No base fertilization and coverage for any culture were used. Embrapa Cerrados, 28 p. Among the desirable characteristics for selection of species for 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, Although the data can produce reliable results in a given study, it is important to determine the sample size in order to estimate the average of each variable, with high confidence and a given estimation error.
These results confirm the variability among the variables and among green manure species, corroborating the results obtained by Cargnelutti Filho et al.
Green manure brings numerous benefits that promote essentially the maintenance and conservation of agro-systems, and its implementation is fundamental to Brazilian Cerrado region. Canavalia ensiformi showed significant higher values for the mean fresh mass production, dry budsab and productivity in relation to Dolichos lablabbeing recommended for cultivation in Brazilian Cerrado. 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, 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.
Morettin Bussab Estatistica Basica 6ª edicao | joseliza Amadeu –
In this scenario, the present research aimed to determine the sample size for the estimation of biomass and productivity expected values of Canavalia basicw and Dolichos lablab. 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. Among the various botanical families species that can be grown as green manures, stand out those of the Fabaceae family.