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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
21/05/2021 |
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Data da última atualização: |
28/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, F. M.; TERRA, G.; MONTE, M. A.; CHAER, G. M. |
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Afiliação: |
FELIPE MARTINI SANTOS, UFRRJ; GILBERTO TERRA, Sucupira Agroforestas, Valença, BA; MARCO ANTONIO MONTE, UFRRJ; GUILHERME MONTANDON CHAER, CNPAB. |
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Título: |
Growth, yield and stem form of young African mahoganies (Khaya spp.) in mixed species plantations and successional agroforestry systems. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
New Forests, v. 53, p. 181-202, 2022. |
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ISSN: |
0169-4286 |
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DOI: |
https://doi.org/10.1007/s11056-021-09850-5 |
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Idioma: |
Inglês |
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Conteúdo: |
African mahoganies can be an alternative for wood production in agroforestry systems and/or mixed-species plantations. In this study, we aimed to evaluate the growth, yield and stem form of Khaya grandifoliola C. DC. and Khaya ivorensis A. Chev. established in successional agroforestry systems and in mixed plantations of both species. A randomized block experiment was set up with the following treatments: (T1) mixed plantation of African mahoganies with elimination of regenerating community by herbicide application; (T2) mixed plantation of African mahoganies with selective management of regenerating community; (T3) agroforestry system including African mahoganies with elimination of regenerating community, through mowing operations (non-selective); and (T4) agroforestry system including African mahoganies with selective management of regenerating community. The results shown a higher growth rate of both Khaya species in T1, especially in relation to T2, possibly due to the more effective herbicide control of the dominant invasive species. The structural complexity, diversity and pruning regime of the regenerating plants in the T4 treatment possibly caused positive benefits in the Khaya trees growth. It is possible that Khaya trees captured part of the fertilizer intended for the food crops, although this effect is more pronounced for K. ivorensis. The stemwood volume stocks in T1 and T4 treatments were similar for both species. The total mean annual increments of volume at 58 months were: 3.3 m3 ha−1 year−1, 1.3 m3 ha−1 year−1, 2.2 m3 ha−1 year−1, and 2.8 m3 ha−1 year−1, for the T1 to T4, respectively. K. grandifoliola had higher height and DBH growth rates than K. ivorensis. However, K. ivorensis trees produced straighter stems, with desirable use to sawmilling MenosAfrican mahoganies can be an alternative for wood production in agroforestry systems and/or mixed-species plantations. In this study, we aimed to evaluate the growth, yield and stem form of Khaya grandifoliola C. DC. and Khaya ivorensis A. Chev. established in successional agroforestry systems and in mixed plantations of both species. A randomized block experiment was set up with the following treatments: (T1) mixed plantation of African mahoganies with elimination of regenerating community by herbicide application; (T2) mixed plantation of African mahoganies with selective management of regenerating community; (T3) agroforestry system including African mahoganies with elimination of regenerating community, through mowing operations (non-selective); and (T4) agroforestry system including African mahoganies with selective management of regenerating community. The results shown a higher growth rate of both Khaya species in T1, especially in relation to T2, possibly due to the more effective herbicide control of the dominant invasive species. The structural complexity, diversity and pruning regime of the regenerating plants in the T4 treatment possibly caused positive benefits in the Khaya trees growth. It is possible that Khaya trees captured part of the fertilizer intended for the food crops, although this effect is more pronounced for K. ivorensis. The stemwood volume stocks in T1 and T4 treatments were similar for both species. The total mean annual increments of volume at ... Mostrar Tudo |
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Palavras-Chave: |
Khaya grandifoliola; Khaya ivorensi; Stem quality; Stemwood production. |
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Thesaurus Nal: |
Intercropping; Khaya; Khaya ivorensis. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02651naa a2200265 a 4500
001 2131952
005 2023-08-28
008 2022 bl uuuu u00u1 u #d
022 $a0169-4286
024 7 $ahttps://doi.org/10.1007/s11056-021-09850-5$2DOI
100 1 $aSANTOS, F. M.
245 $aGrowth, yield and stem form of young African mahoganies (Khaya spp.) in mixed species plantations and successional agroforestry systems.$h[electronic resource]
260 $c2022
520 $aAfrican mahoganies can be an alternative for wood production in agroforestry systems and/or mixed-species plantations. In this study, we aimed to evaluate the growth, yield and stem form of Khaya grandifoliola C. DC. and Khaya ivorensis A. Chev. established in successional agroforestry systems and in mixed plantations of both species. A randomized block experiment was set up with the following treatments: (T1) mixed plantation of African mahoganies with elimination of regenerating community by herbicide application; (T2) mixed plantation of African mahoganies with selective management of regenerating community; (T3) agroforestry system including African mahoganies with elimination of regenerating community, through mowing operations (non-selective); and (T4) agroforestry system including African mahoganies with selective management of regenerating community. The results shown a higher growth rate of both Khaya species in T1, especially in relation to T2, possibly due to the more effective herbicide control of the dominant invasive species. The structural complexity, diversity and pruning regime of the regenerating plants in the T4 treatment possibly caused positive benefits in the Khaya trees growth. It is possible that Khaya trees captured part of the fertilizer intended for the food crops, although this effect is more pronounced for K. ivorensis. The stemwood volume stocks in T1 and T4 treatments were similar for both species. The total mean annual increments of volume at 58 months were: 3.3 m3 ha−1 year−1, 1.3 m3 ha−1 year−1, 2.2 m3 ha−1 year−1, and 2.8 m3 ha−1 year−1, for the T1 to T4, respectively. K. grandifoliola had higher height and DBH growth rates than K. ivorensis. However, K. ivorensis trees produced straighter stems, with desirable use to sawmilling
650 $aIntercropping
650 $aKhaya
650 $aKhaya ivorensis
653 $aKhaya grandifoliola
653 $aKhaya ivorensi
653 $aStem quality
653 $aStemwood production
700 1 $aTERRA, G.
700 1 $aMONTE, M. A.
700 1 $aCHAER, G. M.
773 $tNew Forests$gv. 53, p. 181-202, 2022.
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Embrapa Agrobiologia (CNPAB) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
01/08/2018 |
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Data da última atualização: |
01/08/2018 |
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Autoria: |
SOUZA, C. M. A. de; QUEIROZ, D. M. de; RAFUL, L. Z. L. |
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Afiliação: |
Cristiano Márcio Alves de Souza, Universidade Federal da Grande Dourados/Faculdade de Ciências Agrárias; Daniel Marçal de Queiroz, Universidade Federal de Viçosa - UFV/Departamento de Engenharia Agrícola; Leidy Zulys Leyva Raful, Universidade Federal da Grande Dourados/Faculdade de Ciências Agrárias. |
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Título: |
Derriçadora portátil na colheita total e seletiva de frutos do cafeeiro. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 11, p. 1637-1642, 2006. |
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Idioma: |
Português |
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Notas: |
Título em inglês: Portable harvester in the total and selective harvesting of coffee fruits. |
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Conteúdo: |
O objetivo deste trabalho foi avaliar o desempenho de derriçadoras portáteis durante a colheita seletiva e total dos frutos, em dois sistemas de colheita. Foram determinados a carga pendente da planta, a capacidade de derriça, o índice de desfolha, a eficiência de derriça, o índice de frutos verdes no produto, o nível de ruído e o consumo horário e específico de combustível. O sistema de colheita, utilizando-se duas derriçadoras portá- teis, simultaneamente na mesma fileira de cafeeiros, apresentou melhor desempenho. A colheita seletiva foi muito influenciada pela porcentagem de frutos maduros e carga pendente do cafeeiro. |
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Thesagro: |
Energia; Ergonomia; Mecanização Agrícola. |
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Thesaurus NAL: |
Energy; Ergonomics. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/180694/1/Derricadora-portatil-na-colheita-total-e-seletiva.pdf
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Marc: |
LEADER 01347naa a2200217 a 4500
001 2093773
005 2018-08-01
008 2006 bl uuuu u00u1 u #d
100 1 $aSOUZA, C. M. A. de
245 $aDerriçadora portátil na colheita total e seletiva de frutos do cafeeiro.
260 $c2006
500 $aTítulo em inglês: Portable harvester in the total and selective harvesting of coffee fruits.
520 $aO objetivo deste trabalho foi avaliar o desempenho de derriçadoras portáteis durante a colheita seletiva e total dos frutos, em dois sistemas de colheita. Foram determinados a carga pendente da planta, a capacidade de derriça, o índice de desfolha, a eficiência de derriça, o índice de frutos verdes no produto, o nível de ruído e o consumo horário e específico de combustível. O sistema de colheita, utilizando-se duas derriçadoras portá- teis, simultaneamente na mesma fileira de cafeeiros, apresentou melhor desempenho. A colheita seletiva foi muito influenciada pela porcentagem de frutos maduros e carga pendente do cafeeiro.
650 $aEnergy
650 $aErgonomics
650 $aEnergia
650 $aErgonomia
650 $aMecanização Agrícola
700 1 $aQUEIROZ, D. M. de
700 1 $aRAFUL, L. Z. L.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 41, n. 11, p. 1637-1642, 2006.
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