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| Registros recuperados : 282 | |
| 13. |  | STEINMETZ, S. Evapotranspiração máxima da cultura do feijão de inverno. In: REUNIÃO SOBRE FEIJÃO IRRIGADO (GO, DF, MG, ES, SP, RJ), 1., 1988, Goiânia. Anais. Goiânia: EMBRAPA-CNPAF, 1990. p. 113. (EMBRAPA-CNPAF. Documentos, 27).| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 282 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Clima Temperado. |
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Data corrente: |
08/06/1993 |
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Data da última atualização: |
18/07/2017 |
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Autoria: |
STEINMETZ, S. |
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Título: |
Temperatures of alfalfa, sorghum, soybean and grass as measured with leaf thermocouples and an infrared thermometer. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Lincoln: University of Nebraska, 1977. |
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Páginas: |
94 p. |
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Idioma: |
Francês
Inglês |
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Notas: |
Tese Mestrado. |
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Conteúdo: |
In order to obtain accurate measurements of crop tempearture it is necessary to understand how various plant, soil and meteorological factors affect crop temperature as measured with different techniques. This study was designed to evaluate the influence of several of these factors on crop temperature as measured with leaf thermocouples and an infrared thermometer. Specifically, the objectives of this study were: 1) to determine the influence of percent cover, leaf area index, planting pattern, plant morphology, etc. on the agreement of crop temperatureas measured with attached leaf thermocouples and an infrared thermometer; 2) to detect tempearature differences between different types of crops when subjects to similar environmental conditions and 3) to studythe effects of planting pattern on crop temperature. Plant, air and soil temperature were measured on plots of alfafa, grass, soybean and sorghum. Crop temperature was measured at three canopy levels with evanohm-constantan thermocouples and with an infrared thermometer. Data were collected in 1976 on July 24-25 (24 hr period), August 2-3 (27 hr period) and on August 17-18 (36 hr period) with clear or nearly clear skies. During daytime the temperature given by the infrared thermometer (TIR) showed better agreement with temperature measured by the thermocouples on sunlit leaves (TTC3) than with the temperatures given by the thermocouples at the lower canopy levels. This was particularly true for alfafa and soybean, In sorghum TIR agreed about equally (... MenosIn order to obtain accurate measurements of crop tempearture it is necessary to understand how various plant, soil and meteorological factors affect crop temperature as measured with different techniques. This study was designed to evaluate the influence of several of these factors on crop temperature as measured with leaf thermocouples and an infrared thermometer. Specifically, the objectives of this study were: 1) to determine the influence of percent cover, leaf area index, planting pattern, plant morphology, etc. on the agreement of crop temperatureas measured with attached leaf thermocouples and an infrared thermometer; 2) to detect tempearature differences between different types of crops when subjects to similar environmental conditions and 3) to studythe effects of planting pattern on crop temperature. Plant, air and soil temperature were measured on plots of alfafa, grass, soybean and sorghum. Crop temperature was measured at three canopy levels with evanohm-constantan thermocouples and with an infrared thermometer. Data were collected in 1976 on July 24-25 (24 hr period), August 2-3 (27 hr period) and on August 17-18 (36 hr period) with clear or nearly clear skies. During daytime the temperature given by the infrared thermometer (TIR) showed better agreement with temperature measured by the thermocouples on sunlit leaves (TTC3) than with the temperatures given by the thermocouples at the lower canopy levels. This was particularly true for alfafa and soybean, In sor... Mostrar Tudo |
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Palavras-Chave: |
Agroclimatologia; Ambiente; Festuca elatior; Forrageira. |
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Thesagro: |
Alfafa; Fisiologia Vegetal; Glycine Max; Gramínea; Gramínea Forrageira; Medicago Sativa; Soja; Sorghum Bicolor; Sorgo; Temperatura. |
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Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142621/1/Dissertacao-de-Mestrado-Silvio-Steinmetz.pdf
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Marc: |
LEADER 02343nam a2200301 a 4500
001 2044099
005 2017-07-18
008 1977 bl uuuu m 00u1 u #d
100 1 $aSTEINMETZ, S.
245 $aTemperatures of alfalfa, sorghum, soybean and grass as measured with leaf thermocouples and an infrared thermometer.
260 $aLincoln: University of Nebraska$c1977
300 $a94 p.
500 $aTese Mestrado.
520 $aIn order to obtain accurate measurements of crop tempearture it is necessary to understand how various plant, soil and meteorological factors affect crop temperature as measured with different techniques. This study was designed to evaluate the influence of several of these factors on crop temperature as measured with leaf thermocouples and an infrared thermometer. Specifically, the objectives of this study were: 1) to determine the influence of percent cover, leaf area index, planting pattern, plant morphology, etc. on the agreement of crop temperatureas measured with attached leaf thermocouples and an infrared thermometer; 2) to detect tempearature differences between different types of crops when subjects to similar environmental conditions and 3) to studythe effects of planting pattern on crop temperature. Plant, air and soil temperature were measured on plots of alfafa, grass, soybean and sorghum. Crop temperature was measured at three canopy levels with evanohm-constantan thermocouples and with an infrared thermometer. Data were collected in 1976 on July 24-25 (24 hr period), August 2-3 (27 hr period) and on August 17-18 (36 hr period) with clear or nearly clear skies. During daytime the temperature given by the infrared thermometer (TIR) showed better agreement with temperature measured by the thermocouples on sunlit leaves (TTC3) than with the temperatures given by the thermocouples at the lower canopy levels. This was particularly true for alfafa and soybean, In sorghum TIR agreed about equally (...
650 $aAlfafa
650 $aFisiologia Vegetal
650 $aGlycine Max
650 $aGramínea
650 $aGramínea Forrageira
650 $aMedicago Sativa
650 $aSoja
650 $aSorghum Bicolor
650 $aSorgo
650 $aTemperatura
653 $aAgroclimatologia
653 $aAmbiente
653 $aFestuca elatior
653 $aForrageira
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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