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 | Acesso ao texto completo restrito à biblioteca da Embrapa Algodão. Para informações adicionais entre em contato com cnpa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
12/02/2022 |
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Data da última atualização: |
05/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SEVERINO, L. S.; MENDES, B. S. da S.; SABOYA, R. de C. C.; BARROS, L. A.; MARINHO, D. R. de F. |
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Afiliação: |
LIV SOARES SEVERINO, CNPA; BRUNA SANTANA DA SILVA MENDES, CNPA; RITA DE CASSIA CUNHA SABOYA, CNPA; LUCIANO ALMEIDA BARROS, UNIVERSIDADE FEDERAL DE CAMPINA GRANDE; DAISE RIBEIRO DE FARIAS MARINHO, CNPA. |
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Título: |
Nutrient content of solvent-extracted castor meal separated in granulometric fractions by dry sieving and applied as organic fertilizer. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Industrial Crops and Products, v. 161, 113178, p. 1-7, 2021. |
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Páginas: |
7 p. |
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ISSN: |
0926-6690 |
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DOI: |
10.1016/j.indcrop.2020.113178 |
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Idioma: |
Inglês |
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Conteúdo: |
Castor meal is the main by-product of the industrial oil extraction of castor seed (Ricinus communis L.). It was observed that castor meal could be separated by sieving into apparently distinct fractions. This study measured the relative weight and the nutrient content of six granulometric fractions of castor meal separated by sieving and tested the hypothesis that the fractions with lower N content have a longer residual effect when used as organic fertilizer. Samples of solvent-extracted castor meal were sieved in meshes with openings varying from 9.5 to 0.11 mm. The relative weight of each fraction was measured and calculated, and the nutrient content was determined. In another experiment, the meal was sieved into only three fractions for being tested as organic fertilizer for cotton (Gossypium hirsutum L.) plants for two consecutive growth cycles without additional organic fertilization. The finest fraction (particles < 0.11 mm) had a relative weight of 3.53 %, and the highest relative weight (32.85 %) was found in the fraction with particles between 1.0 and 2.0 mm. The finer were the particles, the higher was the content of N, P, K, Mg, and S, and the lower was the content of Ca. All the castor meal fractions were effective as organic fertilizer for cotton plants. The only difference among fractions was the nutrient content. The evolution of CO2 by microbial respiration confirmed that all the three fractions of castor meal were completely mineralized within one month. Castor meal fractions had no residual effect for supplying N to cotton plants cultivated in the same soil for the second cycle without additional organic fertilization. MenosCastor meal is the main by-product of the industrial oil extraction of castor seed (Ricinus communis L.). It was observed that castor meal could be separated by sieving into apparently distinct fractions. This study measured the relative weight and the nutrient content of six granulometric fractions of castor meal separated by sieving and tested the hypothesis that the fractions with lower N content have a longer residual effect when used as organic fertilizer. Samples of solvent-extracted castor meal were sieved in meshes with openings varying from 9.5 to 0.11 mm. The relative weight of each fraction was measured and calculated, and the nutrient content was determined. In another experiment, the meal was sieved into only three fractions for being tested as organic fertilizer for cotton (Gossypium hirsutum L.) plants for two consecutive growth cycles without additional organic fertilization. The finest fraction (particles < 0.11 mm) had a relative weight of 3.53 %, and the highest relative weight (32.85 %) was found in the fraction with particles between 1.0 and 2.0 mm. The finer were the particles, the higher was the content of N, P, K, Mg, and S, and the lower was the content of Ca. All the castor meal fractions were effective as organic fertilizer for cotton plants. The only difference among fractions was the nutrient content. The evolution of CO2 by microbial respiration confirmed that all the three fractions of castor meal were completely mineralized within one month. C... Mostrar Tudo |
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Thesagro: |
Efeito Residual; Fertilizante; Gossypium Hirsutum; Mamona; Microbiologia do Solo; Planta Oleaginosa; Ricinus Communis. |
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Thesaurus NAL: |
Castor oil; Microbial activity; Organic fertilizers; Residual effects. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02705naa a2200337 a 4500
001 2139987
005 2023-02-05
008 2021 bl uuuu u00u1 u #d
022 $a0926-6690
024 7 $a10.1016/j.indcrop.2020.113178$2DOI
100 1 $aSEVERINO, L. S.
245 $aNutrient content of solvent-extracted castor meal separated in granulometric fractions by dry sieving and applied as organic fertilizer.$h[electronic resource]
260 $c2021
300 $a7 p.
520 $aCastor meal is the main by-product of the industrial oil extraction of castor seed (Ricinus communis L.). It was observed that castor meal could be separated by sieving into apparently distinct fractions. This study measured the relative weight and the nutrient content of six granulometric fractions of castor meal separated by sieving and tested the hypothesis that the fractions with lower N content have a longer residual effect when used as organic fertilizer. Samples of solvent-extracted castor meal were sieved in meshes with openings varying from 9.5 to 0.11 mm. The relative weight of each fraction was measured and calculated, and the nutrient content was determined. In another experiment, the meal was sieved into only three fractions for being tested as organic fertilizer for cotton (Gossypium hirsutum L.) plants for two consecutive growth cycles without additional organic fertilization. The finest fraction (particles < 0.11 mm) had a relative weight of 3.53 %, and the highest relative weight (32.85 %) was found in the fraction with particles between 1.0 and 2.0 mm. The finer were the particles, the higher was the content of N, P, K, Mg, and S, and the lower was the content of Ca. All the castor meal fractions were effective as organic fertilizer for cotton plants. The only difference among fractions was the nutrient content. The evolution of CO2 by microbial respiration confirmed that all the three fractions of castor meal were completely mineralized within one month. Castor meal fractions had no residual effect for supplying N to cotton plants cultivated in the same soil for the second cycle without additional organic fertilization.
650 $aCastor oil
650 $aMicrobial activity
650 $aOrganic fertilizers
650 $aResidual effects
650 $aEfeito Residual
650 $aFertilizante
650 $aGossypium Hirsutum
650 $aMamona
650 $aMicrobiologia do Solo
650 $aPlanta Oleaginosa
650 $aRicinus Communis
700 1 $aMENDES, B. S. da S.
700 1 $aSABOYA, R. de C. C.
700 1 $aBARROS, L. A.
700 1 $aMARINHO, D. R. de F.
773 $tIndustrial Crops and Products$gv. 161, 113178, p. 1-7, 2021.
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