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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
08/03/2016 |
Data da última atualização: |
08/03/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MOREIRA, A.; SFREDO, G. J.; MORAES, L. A. C.; FAGERIA, N. K. |
Afiliação: |
ADONIS MOREIRA, CNPSO; GEDI JORGE SFREDO, CNPSO; LARISSA ALEXANDRA CARDOSO MORAES, CNPSO; NAND KUMAR FAGERIA, CNPAF. |
Título: |
Agronomic efficiency of two types of lime and phosphate fertilizer sources in Brazilian Cerrado soils cultivated with soybean. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, New York, v. 45, n. 17, p. 2319-2330, 2014. |
DOI: |
10.1080/00103624.2014.932372 |
Idioma: |
Inglês |
Conteúdo: |
With the increase in phosphate fertilizer prices, there is a need to find lower-cost alternatives that are as efficient as soluble sources such as single (SSP) and triple superphosphate (TSP). In Brazil?s northern and northeastern regions, there are reserves of igneous rocks with low solubility containing high concentrations of total phosphorus (P) that can be used to produce fertilizers, such as thermalphosphates. To assess the efficiency of sources of P and two types of lime on soybean yield, a field experiment was carried out in an area with dystrophic Red Latosol (Oxisol) in a Cerrado region in the southern part of Maranhão State. The experimental design was randomized blocks in a 2 × 3 × 4 factorial scheme, with four replicates. The treatments were two types of lime [calcitic (CL) (<5 dag kg-1 of MgO) and dolomitic (DL) (>13 dag kg-1 of MgO)], three phosphate fertilizer sources [triple superphosphate (TSP), ?Yoorin? thermalphosphate (YT), and experimental thermalphosphate (ET)], and four rates of phosphorus pentoxide (P2O5; 0, 100, 200, and 300 kg ha-1). After 2 years of cultivation, the application of DL resulted in greater soybean yields than the application of CL. The two lime types influenced the pH, carbon (C), calcium (Ca), and magnesium (Mg) concentrations as well as the Ca/Mg, Ca/K, and Mg/K ratios in the soil. With respect to sources of P, the YT applied in the soil with DL produced an agronomic efficiency index (AEI) similar to that of TSP, whereas in the soil with CL, the TSP, YT, and ET were similar, with maximum technical efficiency (MTE) under both conditions starting at 230 kg ha-1 of P2O5. The critical concentration of available phosphorus (P) in the soil (Mehlich-1 extractant) for cultivation of soybean under the climate and soil conditions studied was between 5.0 and 6.0 mg kg-1. MenosWith the increase in phosphate fertilizer prices, there is a need to find lower-cost alternatives that are as efficient as soluble sources such as single (SSP) and triple superphosphate (TSP). In Brazil?s northern and northeastern regions, there are reserves of igneous rocks with low solubility containing high concentrations of total phosphorus (P) that can be used to produce fertilizers, such as thermalphosphates. To assess the efficiency of sources of P and two types of lime on soybean yield, a field experiment was carried out in an area with dystrophic Red Latosol (Oxisol) in a Cerrado region in the southern part of Maranhão State. The experimental design was randomized blocks in a 2 × 3 × 4 factorial scheme, with four replicates. The treatments were two types of lime [calcitic (CL) (<5 dag kg-1 of MgO) and dolomitic (DL) (>13 dag kg-1 of MgO)], three phosphate fertilizer sources [triple superphosphate (TSP), ?Yoorin? thermalphosphate (YT), and experimental thermalphosphate (ET)], and four rates of phosphorus pentoxide (P2O5; 0, 100, 200, and 300 kg ha-1). After 2 years of cultivation, the application of DL resulted in greater soybean yields than the application of CL. The two lime types influenced the pH, carbon (C), calcium (Ca), and magnesium (Mg) concentrations as well as the Ca/Mg, Ca/K, and Mg/K ratios in the soil. With respect to sources of P, the YT applied in the soil with DL produced an agronomic efficiency index (AEI) similar to that of TSP, whereas in the soil... Mostrar Tudo |
Thesagro: |
Calcário; Cerrado; Fertilizante fosfatado; Manejo do solo; Soja. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/140745/1/CNPAF-2014-am.pdf
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Marc: |
LEADER 02590naa a2200229 a 4500 001 2039976 005 2016-03-08 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1080/00103624.2014.932372$2DOI 100 1 $aMOREIRA, A. 245 $aAgronomic efficiency of two types of lime and phosphate fertilizer sources in Brazilian Cerrado soils cultivated with soybean.$h[electronic resource] 260 $c2014 520 $aWith the increase in phosphate fertilizer prices, there is a need to find lower-cost alternatives that are as efficient as soluble sources such as single (SSP) and triple superphosphate (TSP). In Brazil?s northern and northeastern regions, there are reserves of igneous rocks with low solubility containing high concentrations of total phosphorus (P) that can be used to produce fertilizers, such as thermalphosphates. To assess the efficiency of sources of P and two types of lime on soybean yield, a field experiment was carried out in an area with dystrophic Red Latosol (Oxisol) in a Cerrado region in the southern part of Maranhão State. The experimental design was randomized blocks in a 2 × 3 × 4 factorial scheme, with four replicates. The treatments were two types of lime [calcitic (CL) (<5 dag kg-1 of MgO) and dolomitic (DL) (>13 dag kg-1 of MgO)], three phosphate fertilizer sources [triple superphosphate (TSP), ?Yoorin? thermalphosphate (YT), and experimental thermalphosphate (ET)], and four rates of phosphorus pentoxide (P2O5; 0, 100, 200, and 300 kg ha-1). After 2 years of cultivation, the application of DL resulted in greater soybean yields than the application of CL. The two lime types influenced the pH, carbon (C), calcium (Ca), and magnesium (Mg) concentrations as well as the Ca/Mg, Ca/K, and Mg/K ratios in the soil. With respect to sources of P, the YT applied in the soil with DL produced an agronomic efficiency index (AEI) similar to that of TSP, whereas in the soil with CL, the TSP, YT, and ET were similar, with maximum technical efficiency (MTE) under both conditions starting at 230 kg ha-1 of P2O5. The critical concentration of available phosphorus (P) in the soil (Mehlich-1 extractant) for cultivation of soybean under the climate and soil conditions studied was between 5.0 and 6.0 mg kg-1. 650 $aCalcário 650 $aCerrado 650 $aFertilizante fosfatado 650 $aManejo do solo 650 $aSoja 700 1 $aSFREDO, G. J. 700 1 $aMORAES, L. A. C. 700 1 $aFAGERIA, N. K. 773 $tCommunications in Soil Science and Plant Analysis, New York$gv. 45, n. 17, p. 2319-2330, 2014.
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Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
30/01/2004 |
Data da última atualização: |
30/01/2004 |
Autoria: |
ASSIS, R. L. de; JESUS, E. L. de. |
Título: |
Histórico, conceitos e princípios da agroecologia. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
In: CURSO INTERNACIONAL SOBRE MANEJO DA AGRICULTURA ORGÂNICA PARA A SUSTENTABILIDADE, 1., 2003, Jaguariúna, SP. Anais... Jaguariúna: Embrapa Meio Ambiente, 2003. |
Páginas: |
11 p. |
Idioma: |
Português |
Conteúdo: |
O surgimento da agricultura e as revoluções agrícolas. O processo de industrialização da agricultura. Conseqüências do processo de industrialização da agricultura. O surgimento dos movimentos de agricultura não industrial. Características de diferentes abordagens de agricultura não industrial. Agricultura orgânica. Agricultura biodinâmica. Agricultura biológica. Agricultura ecológica. Agricultura natural. Mokiti Okada. Fukuoka. Permacultura. Agricultura regenerativa. Agricultura sustentável. O marco conceitual da agroecologia. |
Palavras-Chave: |
Agricultura biodinâmica; Agroecologia; Biodynamic cultivation; Organic farming; Sustainability. |
Thesagro: |
Agricultura Biológica; Agricultura Orgânica; Agricultura Sustentável; Ecologia Vegetal; Indústria Agrícola. |
Thesaurus NAL: |
industry; plant ecology; sustainable agriculture. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01500naa a2200301 a 4500 001 1612176 005 2004-01-30 008 2003 bl --- 0-- u #d 100 1 $aASSIS, R. L. de 245 $aHistórico, conceitos e princípios da agroecologia. 260 $c2003 300 $a11 p. 520 $aO surgimento da agricultura e as revoluções agrícolas. O processo de industrialização da agricultura. Conseqüências do processo de industrialização da agricultura. O surgimento dos movimentos de agricultura não industrial. Características de diferentes abordagens de agricultura não industrial. Agricultura orgânica. Agricultura biodinâmica. Agricultura biológica. Agricultura ecológica. Agricultura natural. Mokiti Okada. Fukuoka. Permacultura. Agricultura regenerativa. Agricultura sustentável. O marco conceitual da agroecologia. 650 $aindustry 650 $aplant ecology 650 $asustainable agriculture 650 $aAgricultura Biológica 650 $aAgricultura Orgânica 650 $aAgricultura Sustentável 650 $aEcologia Vegetal 650 $aIndústria Agrícola 653 $aAgricultura biodinâmica 653 $aAgroecologia 653 $aBiodynamic cultivation 653 $aOrganic farming 653 $aSustainability 700 1 $aJESUS, E. L. de 773 $tIn: CURSO INTERNACIONAL SOBRE MANEJO DA AGRICULTURA ORGÂNICA PARA A SUSTENTABILIDADE, 1., 2003, Jaguariúna, SP. Anais... Jaguariúna: Embrapa Meio Ambiente, 2003.
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