Decomposição e liberação de nutrientes acumulados em leguminosas herbáceas perenes consorciadas com bananeira

Espíndola, José Antônio Azevedo; Guerra, José Guilherme Marinho; Almeida, Dejair Lopes de; Teixeira, Marcelo Grandi; Urquiaga, Segundo

doi:10.1590/s0100-06832006000200012

Cited by 57 publications

(47 citation statements)

References 18 publications

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“…Já no 2º ciclo, o sistema de plantio direto com cobertura morta de milheto proporcionou maior produtividade de alface (Tabela 2). Quando comparado com outras espécies de plantas de cobertura, o milheto trouxe como vantagem a menor velocidade de decomposição da palhada e a alta capacidade de ciclagem e imobilização de nutrientes (Espindola et al, 2006;Boer et al, 2008) o que tende a favorecer o desempenho agronômico das culturas. Por outro lado, Oliveira et al (2008) não observaram diferença significativa entre plantio direto com cobertura morta de milheto e cultivo convencional na produção de alface realizada em apenas um ciclo.…”

Section: Resultsunclassified

Consórcio de alface e milho verde sobre cobertura viva e morta em plantio direto

et al. 2017

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Intercropping of lettuce and green ear corn on soil live cover and mulch coverage in no-tillage systemThe intercropping of lettuce and green ear corn was evaluated on different soil coverage in no-tillage system. The research was carried out in Cáceres, Mato Grosso State, Brazil, between December 20 th , 2012 and June 27 th , 2013. The experimental design used was randomized blocks with four replications in a factorial scheme. The treatments consisted of lettuce cropping systems (monoculture and intercropping with green ear corn) and tillage systems [soil turned over without coverage; no-tillage with millet (Pennisetum americanum) mulch and live cover with forage peanut (Arachis pintoi)]. The plots were composed of individual beds with 1.2 m wide and 4.0 m length. Seeding of green ear corn was done in the center of the beds, with 0.5x1.6 m spacing, sown 10 days before transplanting the first lettuce crop. Two cycles of lettuce were grown and evaluated consecutively. Transplanting was done with 30x30 cm spacing, in a quincunx design. The green ear corn harvest was carried out at 80 days, and the lettuce harvest at 42 days, after transplantation in each cycle. The lettuce highest yield (285.4 g/plant) was obtained in monoculture planting system with millet mulch. The lettuce grown over live cover had the lowest yield (123.6 g/plant). The fresh ear corn yield (average of 346.4 g/plant) was not influenced by the intercropping and the soil cover.

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Section: Resultsunclassified

Consórcio de alface e milho verde sobre cobertura viva e morta em plantio direto

et al. 2017

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“…Those values are lower than the ones found for other forages such as leucaena and stylosanthes, showing that even in the dry season, forage peanut presents forage of better quality. Divergent results were found by Espindola et al (2006) when evaluating A. pintoi for use in ground cover: values of 9.1%, 15.2% and 12.0% were found for hemicellulose, cellulose and lignin, respectively, in the dry season".…”

Section: Resultsmentioning

confidence: 99%

Genetic divergence between genotypes of forage peanut in relation to agronomic and chemical traits

et al. 2012

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-The objective of this study was to evaluate the genetic divergence of forage peanut in relation to agronomic and chemical traits in both rainy and dry seasons. This experiment was conducted with genotypes from the Forage Peanut Active Germoplasm Bank located in Embrapa Acre. Eighteen genotypes of forage peanut were used: 12 genotypes of A. pintoi, four genotypes of the A. repens species and two interspecific hybrids of A. pintoi × A. repens. The design was of randomized blocks with five replicates. All traits were submitted to analyses of variance and later, study of genetic divergence was done through multivariate analysis techniques, in which the Tocher's optimization method and the nearest neighbor method were used. Dissimilarity measure used in cluster analysis was the generalized distance of Mahalanobis. No pattern was found in the cluster based on species used, according to the results. There is genetic variability for all traits except neutral detergent fiber, acid detergent fiber, hemicellulose and lignin in the rainy season and for pests in the dry season. The traits which presented most relative contribution in the study of genetic divergence of forage peanut were flowering, dry matter yield and average height in the rainy season and crude protein and average height in the dry season. The established cluster may help the breeder to choose parents and crossings to be selected in forage peanut breeding programs.

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“…The half-life time (t 1/2 ), which expresses the time required for half of the waste to decompose, was calculated from the expression t 1/2 = ln2/k, according to Espindola et al (2006).…”

Section: Determination Of Residue Decompositionmentioning

confidence: 99%

“…Because of the presence of tree species, the biomass of ground secondary forest has a higher C/N ratio and higher lignin content than that of herbaceous and shrub species (Espindola et al, 2006;Kato et al, 2006), which can influence the decomposition rate and nutrient mineralization of these residues.…”

Section: Introductionmentioning

confidence: 99%

Decomposition of ground biomass of secondary forest and yield of annual crops in no tillage

et al. 2015

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RESUMOThe objective of this work was to evaluate the dynamics of decomposition process of chopped secondary forest system, previously enriched with legumes Inga velutina Willd. and Stryphnodendron pulcherrimum (Willd.) Hochr. and the contribution of this process to the nutrient input to the cultivation of corn and bean under no-tillage. The experimental design was a randomized block, split plot with four replications. The plots were two species (I. velutina and S. pulcherrimum) and the subplots were seven times of evaluation (0, 7, 28, 63, 189, 252, 294 days after experiment installation). There was no difference (p > 0.05) between the secondary forest systems enriched and no interaction with times for biomass waste, decomposition constant and half-life time. The waste of S. pulcherrimum trees had higher (p < 0.05) C/N ratio than that I. velutina. However, this one was higher (p < 0.05) in lignin content. Nevertheless, the dynamics of residue decomposition was similar. The corn yield was higher (p < 0.05) in cultivation under I. velutina waste. Meanwhile, the beans planted after corn, shows similar (p > 0.05) yield in both areas, regardless of the waste origin. Key-words: Decomposição da biomassa de capoeira triturada e produtividade de culturas anuais em plantio diretoObjetivou-se, com este trabalho, avaliar a dinâmica do processo de decomposição de resíduos de capoeiras trituradas, anteriormente melhoradas com as leguminosas ingá peluda (Inga velutina Willd.) e baginha (Stryphnodendron pulcherrimum (Willd.) Hochr.) e sua influência na produtividade do milho e do feijoeiro, cultivados sequencialmente em plantio direto. O delineamento experimental foi em blocos casualizados, em parcelas subdivididas, no tempo, com quatro repetições, sendo as parcelas duas leguminosas (ingá peluda e baginha) e as subparcelas sete datas de avaliação (0, 7, 28, 63, 189, 252, 294 dias após a implantação do experimento). Não foi verificada diferença (p > 0,05) entre as capoeiras melhoradas nem efeito da interação destas com as épocas de avaliação sobre os resíduos da biomassa, constante de decomposição e tempo de meia-vida. Os resíduos da capoeira melhorada com baginha apresentaram maior (p < 0,05) relação C/N do que os de ingá peluda, sendo estes últimos superiores (p < 0,05) quanto ao teor de lignina. Porém, a dinâmica da decomposição dos resíduos foi similar para as 569 Decomposition of ground biomass of secondary forest and yield of annual crops in...Rev. Ceres, Viçosa, v. 62, n.6, p. 568-576, nov-dez, 2015 INTRODUCTIONThe traditional system of agriculture in the Amazon is carried out from the clearing and burning of vegetation. Over the years, fire was used as the quickest and most economical way to clean the areas and "fertilize" the soil (Kato et al., 2003).Studies on the slash-and-burn system showed that its main problems are nutrient losses during combustion of biomass and reducing of fallow period (Kato et al, 2006;Sampaio et al., 2008). During the vegetation burning, losses occur both of C, in the form of CO 2 , ...

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Decomposição e liberação de nutrientes acumulados em leguminosas herbáceas perenes consorciadas com bananeira

Cited by 57 publications

References 18 publications

Consórcio de alface e milho verde sobre cobertura viva e morta em plantio direto

Consórcio de alface e milho verde sobre cobertura viva e morta em plantio direto

Genetic divergence between genotypes of forage peanut in relation to agronomic and chemical traits

Decomposition of ground biomass of secondary forest and yield of annual crops in no tillage

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