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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/04/2004 |
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Data da última atualização: |
27/07/2007 |
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Autoria: |
OLIVEIRA JUNIOR, A. de; KLEPKER, D.; BORKERT, C. M.; NOVAIS, R. F.; ALVAREZ, V. H. |
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Título: |
Availability of zinc, manganese and copper for soybean by different extraction solutions in Cerrado soils. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004. |
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Páginas: |
p. 186. |
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Série: |
(Embrapa Soja. Documentos, 228).
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Idioma: |
Inglês |
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Notas: |
Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi. |
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Conteúdo: |
Micronutrient availability can be evaluated by correlation studies between the content obtained by different soil solution extractors and the quantity of these nutrients accumulated in plants. In this manner we evaluated the efficiency of three solution extractors (Mehlich-1, Mehlich-3 e DTPA-TEA) in estimating the availability of zinc, manganese and copper for soybean in cerrado soils. The data were collected in soil calibration field experiments for micronutrients run at two sites in the region of Balsas, MA. In both sites the soil was classified as Red-yellow latosol (LVAd), but with different textures, sandy clay loam (27% of clay) and clay soil (55% of clay). Each experiment (Zn, Mn and Cu) was run for five years in a factorial arrangement (6 X 6), where six doses of lime were applied to reach base saturation between 30 to 80 %, and six doses of each micronutrient. The experimental design was in randomized blocks with four repetitions. To evaluate the efficiency of the micronutrient extraction solutions, the soil content of Zn, Mn, and Cu, were correlated with the contents of these micronutrients in soybean shoots. For zinc, DTPA-TEA was the solution extraction with the best correlation coefficient (r = 0.76) in the sandy clay loam, while in the clay soil the three solutions had similar correlation coefficients. For Mn, in both soils, DTPA-TEA was the extraction solution which best estimated the availability of Mn for soybean, when there were changes in soil pH. The other two methods, Mehlich-1 and Mehlich-3, had lower correlation coefficients. However, when the correlations were calculated inside each saturation level, the coefficients were similar, indicating that both methods might be used for estimating the availability of micronutrients when the range of base saturation or the pH of the soil is known. In the case of Cu, all the soil solution extractors evaluated were equally efficient in predicting the availability of this micronutrient to soybean, although Mehlich-1 and DTPA-TEA were slightly better than Mehlich-3. For all three micronutrients, correlation coefficients were higher in the sandy clay loam than in the clay soil. Indicating the higher readiness of the three extractors. DTPA-TEA appeared to be the most efficient method in predicting the availability of Zn, Mn and Cu for soybean in distinct soil pH conditions, although, the others methods were also efficient when the range of soil pH and of base saturation of the soil were known. MenosMicronutrient availability can be evaluated by correlation studies between the content obtained by different soil solution extractors and the quantity of these nutrients accumulated in plants. In this manner we evaluated the efficiency of three solution extractors (Mehlich-1, Mehlich-3 e DTPA-TEA) in estimating the availability of zinc, manganese and copper for soybean in cerrado soils. The data were collected in soil calibration field experiments for micronutrients run at two sites in the region of Balsas, MA. In both sites the soil was classified as Red-yellow latosol (LVAd), but with different textures, sandy clay loam (27% of clay) and clay soil (55% of clay). Each experiment (Zn, Mn and Cu) was run for five years in a factorial arrangement (6 X 6), where six doses of lime were applied to reach base saturation between 30 to 80 %, and six doses of each micronutrient. The experimental design was in randomized blocks with four repetitions. To evaluate the efficiency of the micronutrient extraction solutions, the soil content of Zn, Mn, and Cu, were correlated with the contents of these micronutrients in soybean shoots. For zinc, DTPA-TEA was the solution extraction with the best correlation coefficient (r = 0.76) in the sandy clay loam, while in the clay soil the three solutions had similar correlation coefficients. For Mn, in both soils, DTPA-TEA was the extraction solution which best estimated the availability of Mn for soybean, when there were changes in soil pH. The oth... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 03460naa a2200205 a 4500
001 1466798
005 2007-07-27
008 2004 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA JUNIOR, A. de
245 $aAvailability of zinc, manganese and copper for soybean by different extraction solutions in Cerrado soils.
260 $c2004
300 $ap. 186.
490 $a(Embrapa Soja. Documentos, 228).
500 $aEditado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.
520 $aMicronutrient availability can be evaluated by correlation studies between the content obtained by different soil solution extractors and the quantity of these nutrients accumulated in plants. In this manner we evaluated the efficiency of three solution extractors (Mehlich-1, Mehlich-3 e DTPA-TEA) in estimating the availability of zinc, manganese and copper for soybean in cerrado soils. The data were collected in soil calibration field experiments for micronutrients run at two sites in the region of Balsas, MA. In both sites the soil was classified as Red-yellow latosol (LVAd), but with different textures, sandy clay loam (27% of clay) and clay soil (55% of clay). Each experiment (Zn, Mn and Cu) was run for five years in a factorial arrangement (6 X 6), where six doses of lime were applied to reach base saturation between 30 to 80 %, and six doses of each micronutrient. The experimental design was in randomized blocks with four repetitions. To evaluate the efficiency of the micronutrient extraction solutions, the soil content of Zn, Mn, and Cu, were correlated with the contents of these micronutrients in soybean shoots. For zinc, DTPA-TEA was the solution extraction with the best correlation coefficient (r = 0.76) in the sandy clay loam, while in the clay soil the three solutions had similar correlation coefficients. For Mn, in both soils, DTPA-TEA was the extraction solution which best estimated the availability of Mn for soybean, when there were changes in soil pH. The other two methods, Mehlich-1 and Mehlich-3, had lower correlation coefficients. However, when the correlations were calculated inside each saturation level, the coefficients were similar, indicating that both methods might be used for estimating the availability of micronutrients when the range of base saturation or the pH of the soil is known. In the case of Cu, all the soil solution extractors evaluated were equally efficient in predicting the availability of this micronutrient to soybean, although Mehlich-1 and DTPA-TEA were slightly better than Mehlich-3. For all three micronutrients, correlation coefficients were higher in the sandy clay loam than in the clay soil. Indicating the higher readiness of the three extractors. DTPA-TEA appeared to be the most efficient method in predicting the availability of Zn, Mn and Cu for soybean in distinct soil pH conditions, although, the others methods were also efficient when the range of soil pH and of base saturation of the soil were known.
700 1 $aKLEPKER, D.
700 1 $aBORKERT, C. M.
700 1 $aNOVAIS, R. F.
700 1 $aALVAREZ, V. H.
773 $tIn: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
24/02/2022 |
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Data da última atualização: |
17/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
GAVA, C. A. T.; SILVA, J. C. da; SIMOES, W. L.; PARANHOS, B. A. J. |
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Afiliação: |
CARLOS ALBERTO TUAO GAVA, CPATSA; JAMILLE CARDEAL DA SILVA; WELSON LIMA SIMOES, CPATSA; BEATRIZ AGUIAR GIORDANO PARANHOS, CPATSA. |
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Título: |
Impact of soil texture on conidia movement and residual effect of entomopathogenic fungi applied through irrigation to control fruit-fly pupae in mango orchards. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Biological Control, v. 163, 104559, 2021. |
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DOI: |
https://doi.org/10.1016/j.biocontrol.2021.104559 |
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Idioma: |
Português |
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Conteúdo: |
While most measures to control Ceratitis capitata (Wiedemann) target larvae and adult insects, entomopathogenic fungi (EPF) have shown promising results against pupae in the soil. This work aimed to evaluate the effect of soil texture on conidial transportation, residual effect, and C. capitata mortality caused by two virulent strains of EPF. The strains were applied to soil columns previously packed with a sandy or a clayey Ultisol using simulated drip irrigation. There were no statistical differences in conidial transportation through soil layers between the sandy and the clayey Ultisol. >90% of conidia were retained in first 40?mm. However, Beauveria bassiana BbLCB289 applied in the sandy soil showed higher pupae and adult mortality. Premixing EPF conidia with siloxane 0.05% v/v increased the percolation of conidial suspensions of BbLCB289 in the sandy soil, but no effect was observed on Metarhizium anisopliae MaLCB255. However, it did not interfere with insect mortality but showed an increase in post-emergence mortality in insects from columns treated with MaLCB255. Seemingly, conidial morphology of the Metarhizium strain interacted with soil pore reducing its percolation rate. Overall, the results showed that the residual effect was only slightly affected by strain and soil texture, and ranged between 27 and 34?days. Finally, field application of experimental and commercial EPF strains in a sandy Ultisol resulted in insect mortality between 52 and 68%. |
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Palavras-Chave: |
Mangueira. |
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Thesagro: |
Ceratitis Capitata; Controle Biológico; Irrigação; Manga; Mosca das Frutas. |
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Thesaurus NAL: |
Biological control; Fruit flies; Mangoes. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02367naa a2200277 a 4500
001 2140378
005 2023-01-17
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.biocontrol.2021.104559$2DOI
100 1 $aGAVA, C. A. T.
245 $aImpact of soil texture on conidia movement and residual effect of entomopathogenic fungi applied through irrigation to control fruit-fly pupae in mango orchards.$h[electronic resource]
260 $c2021
520 $aWhile most measures to control Ceratitis capitata (Wiedemann) target larvae and adult insects, entomopathogenic fungi (EPF) have shown promising results against pupae in the soil. This work aimed to evaluate the effect of soil texture on conidial transportation, residual effect, and C. capitata mortality caused by two virulent strains of EPF. The strains were applied to soil columns previously packed with a sandy or a clayey Ultisol using simulated drip irrigation. There were no statistical differences in conidial transportation through soil layers between the sandy and the clayey Ultisol. >90% of conidia were retained in first 40?mm. However, Beauveria bassiana BbLCB289 applied in the sandy soil showed higher pupae and adult mortality. Premixing EPF conidia with siloxane 0.05% v/v increased the percolation of conidial suspensions of BbLCB289 in the sandy soil, but no effect was observed on Metarhizium anisopliae MaLCB255. However, it did not interfere with insect mortality but showed an increase in post-emergence mortality in insects from columns treated with MaLCB255. Seemingly, conidial morphology of the Metarhizium strain interacted with soil pore reducing its percolation rate. Overall, the results showed that the residual effect was only slightly affected by strain and soil texture, and ranged between 27 and 34?days. Finally, field application of experimental and commercial EPF strains in a sandy Ultisol resulted in insect mortality between 52 and 68%.
650 $aBiological control
650 $aFruit flies
650 $aMangoes
650 $aCeratitis Capitata
650 $aControle Biológico
650 $aIrrigação
650 $aManga
650 $aMosca das Frutas
653 $aMangueira
700 1 $aSILVA, J. C. da
700 1 $aSIMOES, W. L.
700 1 $aPARANHOS, B. A. J.
773 $tBiological Control$gv. 163, 104559, 2021.
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