Calagem e adubação potássica na produção do cupuaçuzeiro em sistemas agroflorestais da Amazônia Ocidental

Ayres, Marta Iria da Costa; Alfaia, Sônia Sena

doi:10.1590/s0100-204x2007000700007

Cited by 14 publications

(9 citation statements)

References 4 publications

(7 reference statements)

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“…When we analyzed the total production of Hibalactone in the plants, a statistical difference was observed and the best treatment was CS (without correction) different data from all the other. This result differs from the authors Mascarenhas et al (1990); Mascarenhas et al (1996); Faria et al (2003); Silva et al (2007); Ayres and Alfaia (2007) and Benedetti et al (2009), because the behavior was partially the opposite to that observed. As for the authors Oliveira Junior et al (2006); Calgaro et al (2007); Costa et al (2007) and Souza et al (2010) that had as results, average stake of treatments with soil cathem not significant in the production of Essential Oil.…”

Section: Source: Authorscontrasting

confidence: 98%

“…When analyzing the production of phenols in the aerial mass, there was a statistical difference and the best treatment was CS (without correction) being statistically superior to all treatments. This result is different than authors such as Mascarenhas et al (1990); Mascarenhas et al (1996); Faria et al (2003); Silva et al (2007); Ayres and Alfaia (2007) and Benedetti et al (2009) because the behavior was the increase with the correction of base saturation and in this work the behavior is the decrease.…”

Section: Source: Authorscontrasting

confidence: 94%

“…The results of Total Phenol sums when we evaluated the underground mass of Acariçoba had as results different values, the treatment S20 (saturation of 20%) was the highest value, but not statistically significant, corroborated by Oliveira Junior et al (2006); Calgaro et al (2007); Costa et al (2007) and Souza et al (2010) in which in their cather treatments were also not significant in the production of Essential Oil in the studied crops. Different from the works of Mascarenhas et al (1990); Mascarenhas et al (1996); Faria et al (2003); Silva et al (2007); Ayres and Alfaia (2007) and Benedetti et al (2009) which generated an increase in production with soil dredging.…”

Section: Source: Authorsmentioning

confidence: 83%

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Effect of fertilization and liming on the content of secondary metabolites in Hydrocotyle umbellata L. var. bonariensis (Lam.) Mr. Spreng

Oliveira

Paula

et al. 2021

RSD

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The nature and the amount of secondary compounds produced by plant species depends on environmental factors, which can act directly on the synthesis of the secondary metabolites. Hydrocotyle umbellata L. var. bonariensis (Lam.) Mr. Spreng has been traditionally used for medicinal purposes, including for antinociceptive, anti-inflammatory and anxiolytic-like effects, and phytochemical studies revealed its bioactive compounds. This work aimed to evaluate the effects of chemical and organic fertilization, and the soil base saturation correction in the H. umbellata crop in dystrophic yellow latosol soil in the production of the secondary metabolites (total phenolic, total flavonoid and hibalactone). The plant was cultivated in the soil of a rural property in the municipality of Anápolis (Goiás state). The experimental design was completely randomized in a controlled environment. The experiment with fertilization had five treatments (control; cattle manure; poultry manure; chemical fertilization; chemical and organic fertilization) and the experiment with liming included the correction of soil base saturation to 20%, 40%, 60% and 80%. The results in most of the two experiments were not statistically significant in the content of the metabolites studied. In the fertilization experiment, the control and manure treatments were statistically better in the content of total phenols in aerial mass analysis. Regarding the saturation correction experiment, the treatment without liming afforded higher levels of hibalactone content (considering the whole plant) and total phenolic content (considering the air mass). The treatment with correction of saturation to 40% afforded higher levels of total phenolic (considering the whole plant).

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Section: Source: Authorscontrasting

confidence: 98%

Section: Source: Authorscontrasting

confidence: 94%

Section: Source: Authorsmentioning

confidence: 83%

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Effect of fertilization and liming on the content of secondary metabolites in Hydrocotyle umbellata L. var. bonariensis (Lam.) Mr. Spreng

Oliveira

Paula

et al. 2021

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“…A utilização da cultura do cupuaçu no SAF pode estar associada ao baixo teor desse nutriente na última camada, uma vez que, Ayres & Alfaia (2007) confirmam sua demanda em sistemas agroflorestais do Acre. A reposição deste elemento provavelmente é realizada através da deposição da serapilheira.…”

Section: Floresta E Ambiente 2010; 17(1):12-22unclassified

Fertilidade do solo sob sistemas de produção de subsistência, agrofloresta e vegetação remanescente em Esperantina Tocantins

Collier¹,

Araújo²

2010

Floram

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RESUMOEstudo em Esperantina (TO) quantificou os atributos da fertilidade do solo em área cultivada sob sistema agroflorestal (SAF), mata nativa e lavoura de subsistência. O solo e a serapilheira foram coletados no período chuvoso e no período seco, com 10 repetições. Os teores de nutrientes nas duas épocas foram muito baixos, sendo maiores no solo cultivado com arroz e milho em função da queimada e resíduos de adubação mineral. Os teores de matéria orgânica no SAF se equipararam aos da mata. A serapilheira encontrada no SAF nas duas épocas contrasta com os baixos níveis de nutrientes, podendo contribuir para a manutenção da capacidade produtiva do agroecossistema.Palavras-chave: agrofloresta, ciclagem de nutrientes, serapilheira.Soil Fertility on Subsistence Production System, Agroforestry and Remaining Vegetation in Esperantina, State of Tocantins, Brazil ABSTRACTIn this work, which was carried out in Esperantina, State of Tocantins, soil fertility parameters were measured in an area cultivated through agroforestry, subsistence farming and native tropical vegetation. Soil and litter were collected in rainy and in dry season with 10 replicates. Nutrient levels were very low in both seasons. Rice and maize cultivation areas presented the highest levels, possibly due to burn practice and mineral fertilizer residues. Organic matter levels of SAF were the same as those of native tropical forest vegetation. The litter obtained on SAF in both seasons contrasts with the low nutrients levels obtained, what could contribute to the maintenance of the production capacity of the agroecosystem.

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“…Diante desse cenário, o uso de sistemas agroflorestais (SAFs) torna-se uma alternativa sustentável e adequada às características edafoclimáticas da Amazônia, pois apresenta a possibilidade de auxiliar na redução do desmatamento, uma vez que rompe com o ciclo da agricultura migratória tão comum na região, a qual, em função de períodos de pousio muito curtos para a recuperação dos solos, aumenta a pressão sobre as áreas de floresta primária (Smith et al, 1998;Ayres & Alfaia, 2007;Brienza et al, 2009). O interesse nos SAFs para a Amazônia está além da utilização desses sistemas para uso da terra, na mudança de seu uso para o combate ao desmatamento e à degradação já existentes .…”

Section: Introductionunclassified

Carbono, Nitrogênio, Abundância Natural de Δ13C e Δ15N do Solo sob Sistemas Agroflorestais

Couto¹,

Anjos

Pereira

et al. 2017

Floresta Ambient.

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RESUMOO objetivo deste trabalho foi avaliar alterações nos teores de C e N e abundância natural de δ 13 C e δ 15 N de um Cambissolo Háplico Tb distrófico em uma área com sistema agroflorestal (SAF). Em cada área de estudo foram coletadas amostras de solo, em 8 profundidades de 0,0-1,0 m. O delineamento experimental utilizado foi o inteiramente casualizado, em esquema de parcelas subdivididas 2 × 8 (2 áreas florestais e 8 profundidades), com três repetições. Com exceção da camada superficial do solo (0,0-0,10), a área de SAF está preservando os teores de C e aumentando os teores de N (0,2-1,0) em relação à mata nativa. Ambas as áreas avaliadas apresentaram sinais de abundância natural de δ 13 C referente a plantas do ciclo fotossintético C3, e a área de mata nativa apresentou nas camadas superficiais (0,0-0,20) maiores valores de δ 15 N, demonstrando maior decomposição da matéria orgânica.Palavras-chave: reflorestamento, matéria orgânica do solo, Cambissolo.Carbon, Nitrogen, and Natural Abundance Of Δ 13 C and Δ 15 N of Soils Under Agroforestry Systems ABSTRACTThe aim of this study was to evaluate changes in C and N levels and in the natural abundance of δ 15 N and δ 13 C of a Inceptisol in an agroforestry system (AFS). Soil samples were collected from eight depth levels from 0.0-1.0 m in each studied area. The experiment was carried out in a completely randomized 2 × 8 (2 forest areas and 8 depths) split-plot design with three replications. Except for the topsoil (0.0-0.10), the area of this AFS has preserved content of C and increased level of N (0.2-1.0) compared to the Forest. Both areas showed signs of natural abundance of δ 13 C in plants with C3 photosynthetic pathway, and the forest area presented higher values of δ 15 N in the superficial layers (0.0-0.20), indicating greater decomposition of organic matter.

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Calagem e adubação potássica na produção do cupuaçuzeiro em sistemas agroflorestais da Amazônia Ocidental

Cited by 14 publications

References 4 publications

Effect of fertilization and liming on the content of secondary metabolites in Hydrocotyle umbellata L. var. bonariensis (Lam.) Mr. Spreng

Effect of fertilization and liming on the content of secondary metabolites in Hydrocotyle umbellata L. var. bonariensis (Lam.) Mr. Spreng

Fertilidade do solo sob sistemas de produção de subsistência, agrofloresta e vegetação remanescente em Esperantina Tocantins

Carbono, Nitrogênio, Abundância Natural de Δ13C e Δ15N do Solo sob Sistemas Agroflorestais

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