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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
27/07/1993 |
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Data da última atualização: |
07/10/2004 |
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Autoria: |
KANEMASU, E. T. |
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Afiliação: |
Evapotranspiration Laboratory, Kansas State University at Manhattan, USA. |
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Título: |
Irrigation water requirements and water stress. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
In: CONFERENCE ON IRRIGATED SOYBEAN PRODUCTION IN ARID IN AND SEMI-ARID REGIONS, 1979, Cairo. Proceedings. Urbana-Champaign : INTSOY / University of Illinois, 1981. p.82-85. (INTSOY. Series, 20). |
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Idioma: |
Inglês |
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Notas: |
Ver trabalho preliminar no PC 3730. |
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Conteúdo: |
Seasonal use by soybeans varies depending on the climate and genotype.Most of the literature reports seasonal water use of 40 to 50cm, with a peak daily water use of about 8 to 9mm per day. The variation in yield response to irrigation is large. The yield increase to applied water ranges from 9 to 100kg/ha/cm of water. Much of the difference can beatributed to several environmental and physiological factors, including the duration and severity of stress, time trend in avaliable water, and growth stage. The most critical stage for adequate water supply isduring pod-filling. In some cases, watering during vegetative and flowering stages reduces yields-presumably because of lodging and flower abortion. Apparently, soybean yields are not affected until the root zone has been depleted more than 60 percent. Some of the constraints on efficient production relate to environment-genotype interaction and crop yield modeling. Specific areas of research include programs on the characterization of the rhizosphere, temperature and water-deficit effects on photosynthesis, partitioning and translocation of plant assimilates, and development of a practical model for scheduling irrigation. |
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Palavras-Chave: |
EUA; Soybean; USA. |
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Thesagro: |
Soja. |
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Thesaurus Nal: |
irrigation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01822naa a2200193 a 4500
001 1453273
005 2004-10-07
008 1981 bl uuuu u00u1 u #d
100 1 $aKANEMASU, E. T.
245 $aIrrigation water requirements and water stress.
260 $c1981
500 $aVer trabalho preliminar no PC 3730.
520 $aSeasonal use by soybeans varies depending on the climate and genotype.Most of the literature reports seasonal water use of 40 to 50cm, with a peak daily water use of about 8 to 9mm per day. The variation in yield response to irrigation is large. The yield increase to applied water ranges from 9 to 100kg/ha/cm of water. Much of the difference can beatributed to several environmental and physiological factors, including the duration and severity of stress, time trend in avaliable water, and growth stage. The most critical stage for adequate water supply isduring pod-filling. In some cases, watering during vegetative and flowering stages reduces yields-presumably because of lodging and flower abortion. Apparently, soybean yields are not affected until the root zone has been depleted more than 60 percent. Some of the constraints on efficient production relate to environment-genotype interaction and crop yield modeling. Specific areas of research include programs on the characterization of the rhizosphere, temperature and water-deficit effects on photosynthesis, partitioning and translocation of plant assimilates, and development of a practical model for scheduling irrigation.
650 $airrigation
650 $aSoja
653 $aEUA
653 $aSoybean
653 $aUSA
773 $tIn: CONFERENCE ON IRRIGATED SOYBEAN PRODUCTION IN ARID IN AND SEMI-ARID REGIONS, 1979, Cairo. Proceedings. Urbana-Champaign : INTSOY / University of Illinois, 1981. p.82-85. (INTSOY. Series, 20).
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Registro original: |
Embrapa Soja (CNPSO) |
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