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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
10/02/2014 |
Data da última atualização: |
26/05/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FAGERIA, N. K.; BALIGAR, V. C.; LI, Y. C. |
Afiliação: |
NAND KUMAR FAGERIA, CNPAF; V. C. BALIGAR, USDA; Y. C. LI, UNIVERSITY OF FLORIDA. |
Título: |
Nutrient uptake and use efficiency by tropical legume cover crops at varying pH of an oxisol. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Journal of Plant Nutrition, New York, v. 37, n. 2, p. 294-311, Feb. 2014. |
DOI: |
10.1080/01904167.2013.851695 |
Idioma: |
Inglês |
Conteúdo: |
Oxisols comprise large soil group in tropical America. These soils are acidic and have low fertility. Use of tropical legume cover crops in cropping systems is an important strategy to improve fertility of these soils for sustainable crop production. Data are limited on nutrient uptake and use efficiency of tropical cover crops under different acidity levels. The objective of our study was to evaluate growth and nutrient uptake parameters of sixteen tropical legume cover crops under three soil pH (5.1, 6.5, and 7.0) of an Oxisol. Shoot dry weight was influenced significantly by pH and cover crop treatments and their interactions, indicating that cover crops used had differential responses to changing soil pH levels. Overall, shoot dry weight decreased when soil pH was raised from 5.1 to 7.0, indicating acidity tolerance of cover crops. Nutrient concentration (content per unit of dry weight), uptake (concentration X dry weight), and nutrient use efficiency (dry weight of shoot per unit of nutrient uptake) varied significantly among cover crops. The variation in nutrient uptake and use efficiency among cover crop species was associated with variation in shoot dry matter production. Significant variation among crop species in dry matter production and low C/N ratios (average value of 14.25) suggest that cover crops which produced higher dry matter yield like white jack bean, gray mucuna bean, black mucuna bean, mucuna bean ana, and lablab are important choices for planting in tropical soils to recover large amount of macro and micronutrients, and to prevent such nutrient leaching in soil plant systems. MenosOxisols comprise large soil group in tropical America. These soils are acidic and have low fertility. Use of tropical legume cover crops in cropping systems is an important strategy to improve fertility of these soils for sustainable crop production. Data are limited on nutrient uptake and use efficiency of tropical cover crops under different acidity levels. The objective of our study was to evaluate growth and nutrient uptake parameters of sixteen tropical legume cover crops under three soil pH (5.1, 6.5, and 7.0) of an Oxisol. Shoot dry weight was influenced significantly by pH and cover crop treatments and their interactions, indicating that cover crops used had differential responses to changing soil pH levels. Overall, shoot dry weight decreased when soil pH was raised from 5.1 to 7.0, indicating acidity tolerance of cover crops. Nutrient concentration (content per unit of dry weight), uptake (concentration X dry weight), and nutrient use efficiency (dry weight of shoot per unit of nutrient uptake) varied significantly among cover crops. The variation in nutrient uptake and use efficiency among cover crop species was associated with variation in shoot dry matter production. Significant variation among crop species in dry matter production and low C/N ratios (average value of 14.25) suggest that cover crops which produced higher dry matter yield like white jack bean, gray mucuna bean, black mucuna bean, mucuna bean ana, and lablab are important choices for planting in t... Mostrar Tudo |
Palavras-Chave: |
Ssitema de cultivo. |
Thesagro: |
Absorção de nutrientes; Planta de cobertura. |
Thesaurus Nal: |
cover crops; Cropping systems; Nutrient uptake; Soil pH. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02376naa a2200241 a 4500 001 1979244 005 2014-05-26 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1080/01904167.2013.851695$2DOI 100 1 $aFAGERIA, N. K. 245 $aNutrient uptake and use efficiency by tropical legume cover crops at varying pH of an oxisol.$h[electronic resource] 260 $c2014 520 $aOxisols comprise large soil group in tropical America. These soils are acidic and have low fertility. Use of tropical legume cover crops in cropping systems is an important strategy to improve fertility of these soils for sustainable crop production. Data are limited on nutrient uptake and use efficiency of tropical cover crops under different acidity levels. The objective of our study was to evaluate growth and nutrient uptake parameters of sixteen tropical legume cover crops under three soil pH (5.1, 6.5, and 7.0) of an Oxisol. Shoot dry weight was influenced significantly by pH and cover crop treatments and their interactions, indicating that cover crops used had differential responses to changing soil pH levels. Overall, shoot dry weight decreased when soil pH was raised from 5.1 to 7.0, indicating acidity tolerance of cover crops. Nutrient concentration (content per unit of dry weight), uptake (concentration X dry weight), and nutrient use efficiency (dry weight of shoot per unit of nutrient uptake) varied significantly among cover crops. The variation in nutrient uptake and use efficiency among cover crop species was associated with variation in shoot dry matter production. Significant variation among crop species in dry matter production and low C/N ratios (average value of 14.25) suggest that cover crops which produced higher dry matter yield like white jack bean, gray mucuna bean, black mucuna bean, mucuna bean ana, and lablab are important choices for planting in tropical soils to recover large amount of macro and micronutrients, and to prevent such nutrient leaching in soil plant systems. 650 $acover crops 650 $aCropping systems 650 $aNutrient uptake 650 $aSoil pH 650 $aAbsorção de nutrientes 650 $aPlanta de cobertura 653 $aSsitema de cultivo 700 1 $aBALIGAR, V. C. 700 1 $aLI, Y. C. 773 $tJournal of Plant Nutrition, New York$gv. 37, n. 2, p. 294-311, Feb. 2014.
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Embrapa Arroz e Feijão (CNPAF) |
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Registros recuperados : 98 | |
6. | | FAGERIA, N. K.; BALIGAR, V. C. Growth and nutrient concentrations of common bean, lowland rice, corn, soybean, and wheat at different soil pH on and inceptisol. Journal of Plant Nutrition, v. 22, n. 9, p. 1495-1507, 1999.Tipo: Artigo em Periódico Indexado |
Biblioteca(s): Embrapa Arroz e Feijão. |
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10. | | FAGERIA, N. K.; BALIGAR, V. C. Dry bean genotypes evaluation for phosphorus use efficiency. In: JOINT ANNUAL METTING OF THE GEOLOGICAL SOCIETY OF AMERICA, SOIL SCIENCE SOCIETY OF AMERICA, AMERICAN SOCIETY OF AGRONOMY, CROP SCIENCE SOCIETY OF AMERICA, GULF COAST ASSOCIATION OF GEOLOGICAL, 2008, Houston. Celebrating the international year of planet earth: abstracts with programs. Austin: The University of Texas, 2008. 1 CD-ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Arroz e Feijão. |
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14. | | BALIGAR, V. C.; FAGERIA, N. K. Nutrient use efficiency in acid soils: nutrient management and plant use efficiency. In: MONIZ, A. C.; FURLANI, A. M. C.; SCHAFFERT, R. E.; FAGERIA, N. K.; ROSOLEM, C. A.; CANTARELLA, H. (Ed.). Plant-soil interactions at low pH: sustainable agriculture and forestry production. Campinas: Brazilian Soil Science Society, 1997. p. 75-95. Proceedings of the Fourth International Symposium on Plant-Soil Interactions at low pH, Belo Horizonte, Minas Gerais, Brazil, 17-24 March 1996.Biblioteca(s): Embrapa Arroz e Feijão. |
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18. | | BALIGAR, V. C.; FAGERIA, N. K. Plant nutrient efficiency: towards the second paradigm. In: SIQUEIRA, J. O.; MOREIRA, F. M. S.; LOPES, A. S.; GUILHERME, L. R. G.; FAQUIN, V.; FURTINI NETO, A. E.; CARVALHO, J. G. (Ed.). Inter-relacao fertilidade, biologia do solo e nutricao de plantas. Lavras: SBCS: UFLA, 1999. p. 183-204.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Arroz e Feijão. |
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Registros recuperados : 98 | |
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