Water production function of sorghum for Northeast Brazil.
Autor(a) principal: | |
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Data de Publicação: | 1986 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/133189 |
Resumo: | The results of an experiment to determine the water production function of sorghum for Northeast Brazilian conditions are reported. The experiment was designed in two random blocks consisting of four growth states for irrigation deficit and four levels of nitrogen. The crop response to water was found to be of quadratic nature. Regression coeficients were developed for each nitrogen and growth stage treatment between water use and grain yields. The most critical stage was found to be the vegetative stage followed by flowering and grainn formation stages. The yield response factors as according to Doorenbos and Kassam were found to with differente irrigation levels. A modified linear equation has been suggested. The coefficients of this modifieed equation have been determined for all four stages and for the four nitrogen levels for sorghum. The higest average water use efficiency of 109:3 kg haa-1 cm -1 of water and highest obtainable grain yield of 4.92 t/ha was found to be at 425 mm of water use and 45 kt/ha of nitrogen. The crop coefficients (Kc) to compute crop water use from pan evaporation vary between 0.4 and 0.81 with an average for the whole growing period of 0.75. |
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Water production function of sorghum for Northeast Brazil.NordesteSorghumProductionNortheastÁguaProduçãoSorgowaterThe results of an experiment to determine the water production function of sorghum for Northeast Brazilian conditions are reported. The experiment was designed in two random blocks consisting of four growth states for irrigation deficit and four levels of nitrogen. The crop response to water was found to be of quadratic nature. Regression coeficients were developed for each nitrogen and growth stage treatment between water use and grain yields. The most critical stage was found to be the vegetative stage followed by flowering and grainn formation stages. The yield response factors as according to Doorenbos and Kassam were found to with differente irrigation levels. A modified linear equation has been suggested. The coefficients of this modifieed equation have been determined for all four stages and for the four nitrogen levels for sorghum. The higest average water use efficiency of 109:3 kg haa-1 cm -1 of water and highest obtainable grain yield of 4.92 t/ha was found to be at 425 mm of water use and 45 kt/ha of nitrogen. The crop coefficients (Kc) to compute crop water use from pan evaporation vary between 0.4 and 0.81 with an average for the whole growing period of 0.75.PREM N. SHARMA, Consultor CPATSA; FAUSTINO B. ALONSO NETO.SHARMA, P. N.ALONSO NETO, F. B.2018-07-31T01:35:12Z2018-07-31T01:35:12Z1996-07-1519862018-07-31T01:35:12Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAgricultural Water Management, v. 11, n. 2, p. 169-180, apr. 1986.http://www.alice.cnptia.embrapa.br/alice/handle/doc/133189enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-07-31T01:35:19Zoai:www.alice.cnptia.embrapa.br:doc/133189Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-07-31T01:35:19falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-07-31T01:35:19Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Water production function of sorghum for Northeast Brazil. |
title |
Water production function of sorghum for Northeast Brazil. |
spellingShingle |
Water production function of sorghum for Northeast Brazil. SHARMA, P. N. Nordeste Sorghum Production Northeast Água Produção Sorgo water |
title_short |
Water production function of sorghum for Northeast Brazil. |
title_full |
Water production function of sorghum for Northeast Brazil. |
title_fullStr |
Water production function of sorghum for Northeast Brazil. |
title_full_unstemmed |
Water production function of sorghum for Northeast Brazil. |
title_sort |
Water production function of sorghum for Northeast Brazil. |
author |
SHARMA, P. N. |
author_facet |
SHARMA, P. N. ALONSO NETO, F. B. |
author_role |
author |
author2 |
ALONSO NETO, F. B. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
PREM N. SHARMA, Consultor CPATSA; FAUSTINO B. ALONSO NETO. |
dc.contributor.author.fl_str_mv |
SHARMA, P. N. ALONSO NETO, F. B. |
dc.subject.por.fl_str_mv |
Nordeste Sorghum Production Northeast Água Produção Sorgo water |
topic |
Nordeste Sorghum Production Northeast Água Produção Sorgo water |
description |
The results of an experiment to determine the water production function of sorghum for Northeast Brazilian conditions are reported. The experiment was designed in two random blocks consisting of four growth states for irrigation deficit and four levels of nitrogen. The crop response to water was found to be of quadratic nature. Regression coeficients were developed for each nitrogen and growth stage treatment between water use and grain yields. The most critical stage was found to be the vegetative stage followed by flowering and grainn formation stages. The yield response factors as according to Doorenbos and Kassam were found to with differente irrigation levels. A modified linear equation has been suggested. The coefficients of this modifieed equation have been determined for all four stages and for the four nitrogen levels for sorghum. The higest average water use efficiency of 109:3 kg haa-1 cm -1 of water and highest obtainable grain yield of 4.92 t/ha was found to be at 425 mm of water use and 45 kt/ha of nitrogen. The crop coefficients (Kc) to compute crop water use from pan evaporation vary between 0.4 and 0.81 with an average for the whole growing period of 0.75. |
publishDate |
1986 |
dc.date.none.fl_str_mv |
1986 1996-07-15 2018-07-31T01:35:12Z 2018-07-31T01:35:12Z 2018-07-31T01:35:12Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Agricultural Water Management, v. 11, n. 2, p. 169-180, apr. 1986. http://www.alice.cnptia.embrapa.br/alice/handle/doc/133189 |
identifier_str_mv |
Agricultural Water Management, v. 11, n. 2, p. 169-180, apr. 1986. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/133189 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503459645423616 |