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| Carvalho,André Mundstock Xavier de; Vale,Helson Mário Martins do; Ferreira,Eráclides Maria; Cordero,Alexander Francisco Perez; Barros,Nairam Félix de; Costa,Maurício Dutra. |
| No Brasil, as espécies Pinus elliottii e Terminalia ivorensis vêm sendo indicadas para reflorestamento. No entanto, pouco se sabe sobre as características ecológicas destas florestas, o ciclo de nutrientes e suas conseqüências sobre a produtividade e sustentabilidade sob condições tropicais. Visando melhor compreender a dinâmica do C nestes ecossistemas, objetivou-se neste trabalho avaliar a atividade microbiana do solo, serapilheira e da mistura solo + serapilheira em povoamentos florestais de P. elliottii e T. ivorensis. Amostras de solos e serapilheira foram incubadas e a atividade microbiana avaliada por meio da evolução de CO2. Ao final da incubação, a respiração acumulada foi superior para a serapilheira de T. ivorensis. Os demais substratos com... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Incorporação de serapilheira; Degradação da serapilheira; Respirometria. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832008000700014 |
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| Aquino,Rosiane Filomena Batista Almeida; Assunção,Natália Silva; Aquino,Leonardo Angelo; Aquino,Priscila Maria de; Oliveira,Guilherme Anthony de; Carvalho,André Mundstock Xavier de. |
| Farmers must carefully choose the cultivar to be grown for a successful carrot crop. The yield potential of the cultivar may influence nutrient demand and should be known to plan for fertilization application. The aim of this study was to evaluate the cultivar effect on carrot yield and on the nutrient content and quantities allocated to leaves and roots. Three experiments were set up in two crop seasons in Rio Paranaíba, MG, Brazil. In the first season, typical summer, 10 summer cultivars were sown. In the second season, summer-winter (transition), two experiments were set up, one with summer cultivars and the other with winter cultivars. The treatments consisted of the carrot cultivars distributed in randomized blocks with four replications. Fresh and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daucus carota L.; Nutritional balance; Extraction; Nutrient export. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000200541 |
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| Tavares,Laene de Fátima; Carvalho,André Mundstock Xavier de; Machado,Lucas Gonçalves. |
| ABSTRACT Experimental statistical procedures used in almost all scientific papers are fundamental for clearer interpretation of the results of experiments conducted in agrarian sciences. However, incorrect use of these procedures can lead the researcher to incorrect or incomplete conclusions. Therefore, the aim of this study was to evaluate the characteristics of the experiments and quality of the use of statistical procedures in soil science in order to promote better use of statistical procedures. For that purpose, 200 articles, published between 2010 and 2014, involving only experimentation and studies by sampling in the soil areas of fertility, chemistry, physics, biology, use and management were randomly selected. A questionnaire containing 28... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Statistical analysis; Means test; Misuse of statistics. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100307 |
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