12 research outputs found
Effects of tillage systems on physical properties of a cohesive yellow argisol in the northern state of EspĂrito Santo, Brazil
Full text linkGenetic potential of common bean progenies obtained by different breeding methods evaluated in various environments
No full textGenetic potential of black bean genotypes with predictable behaviors in multienvironment trials
No full textGenetic parameters and breeding strategies for high levels of iron and zinc in Phaseolus vulgaris L.
No full textResearch Article Genetic control and selection of common bean parents and superior segregant populations based on high iron and zinc contents, seed yield and 100-seed weight
No full textCaracterização das assemblĂ©ias de peixes de riachos de cabeceira no perĂodo chuvoso na bacia do rio Cachoeira (SE da Bahia, NE do Brasil)
No full textEstrutura fitossociolĂłgica em ĂĄrea natural e antropizada de uma vereda em UberlĂąndia, MG Phytosociological structure of natural and disturbed palm swampy vegetation near UberlĂąndia, MG
No full textO objetivo do estudo foi de comparar a ĂĄrea natural e antropizada de uma vereda quanto Ă estrutura fitossociolĂłgica e Ă s caracterĂsticas do solo. O trabalho foi realizado em uma vereda no municĂpio de UberlĂąndia, MG (19Âș11'40" S e 48Âș24'31" W). Para as anĂĄlises quĂmicas foram coletados solos em trĂȘs profundidades: 0-1 cm, 1-16 cm e 16-32 cm. No levantamento fitossociolĂłgico utilizou-se o mĂ©todo transecto de linha. Duas classes de solos foram encontradas: Gleissolo HĂĄplico e Gleissolo MelĂąnico, que tiveram, em mĂ©dia, baixos valores de pH e bases disponĂveis. Os maiores percentuais de matĂ©ria orgĂąnica e umidade ocorreram no fundo da vereda. Foram amostradas 101 espĂ©cies e 29 famĂlias vegetais. A riqueza de espĂ©cies foi menor na vertente preservada. Poaceae, Cyperaceae e Asteraceae foram as famĂlias que tiveram o maior nĂșmero de espĂ©cies, 33, 13 e 10, respectivamente. Schizachyrium tenerum, Echinolaena inflexa, Loudetia flammida e Erianthus asper tiveram maior frequĂȘncia no ambiente preservado e Schizachyrium tenerum, Hypogynium virgatum e Ageratum fastigiatum no antropizado.<br>The study aimed to compare the natural and disturbed areas of a palm swamp vegetation according to its soil characteristics and phytosociological structure. The study was done at a site near UberlĂąndia, MG (19Âș11'40" S and 48Âș24'31" W). Chemical analysis was carried out at threes depths: 0-1 cm, 1-16 cm and 16-32 cm. The phytosociological survey was done by the line intercept method. Two classes of soil were found: Relatively Humic Glei and Humic Glei, which had low values of pH and available bases. The highest percentage of organic matter occurred in the lowest depth of the palm swamp area. Some 101 species and 29 families were sampled. The preserved slope had a lower species richness than the disturbed area. Poaceae, Cyperaceae and Asteraceae were the families with the highest number of species, 33, 13 and 10, respectively. Schizachyrium tenerum, Echinolaena inflexa, Loudetia flammida and Erianthus asper were more frequent in the preserved area and Schizachyrium tenerum, Hypogynium virgatum and Ageratum fastigiatum in the disturbed area
Propriedades quĂmicas do solo e nutrição do eucalipto em função da aplicação de lodo de esgoto
No full textQualidade da matĂ©ria orgĂąnica e estoques de carbono e nitrogĂȘnio em Latossolo tratado com biossĂłlido e cultivado com eucalipto
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