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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: |
14/12/2023 |
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Data da última atualização: |
14/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WANDER, A. E.; MATTOS, M. L. T. |
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Afiliação: |
ALCIDO ELENOR WANDER, CNPAF; MARIA LAURA TURINO MATTOS, CPACT. |
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Título: |
Economic evaluation of biological nitrogen fixation in flooded rice cultivation in subtropical lowlands. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Agriculture and Rural Development in the Tropics and Subtropics, v. 124, n. 1, p. 57-63, 2023. |
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ISSN: |
2363-6033 |
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DOI: |
https://doi.org/10.17170/kobra-202306128202 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to assess the economic viability of biological nitrogen fixation in flood rice cultivation in subtropical lowlands. A field experiment of seven treatments was carried out during the cropping seasons 2015/16, 2017/18, 2018/19 and 2019/20 at the Lowland Experimental Station of Embrapa, in Pelotas, RS, Brazil. The evaluated treatments were: (1) negative control (without N and inoculant); (2) positive control with recommended N-fertilisation (120 kg N ha−1, without inoculant) (standard recommendation); (3) inoculant 1 (accessions CMM 174 + CMM 175 + CMM 179); (4) inoculant 2 (accessions CMM 176 + CMM 197 + CMM 205); (5) combination of reduced N-fertiliser doses (90 kg N ha−1) + inoculant 1; (6) combination of reduced N-fertiliser doses (90 kg N ha−1) + inoculant 2; and (7) commercial inoculant [Azospirillum brasilense (strains Ab-V5 and Ab-V6)]. A partial budget was used to compare evaluated treatments with the standard recommendation regarding nitrogen fertilisation. Inoculant 2 composed of bacterial accessions CMM 176 (Rhizobium sp.), CMM 197 (Bacillus sp.) and CMM 205 (Aeromicrobium sp.) combined with reduced mineral nitrogen fertilisation [90 kg N ha−1 (applied in top dressing)] demonstrates the best agroeconomic efficiency in the production of irrigated rice in subtropical lowlands with the cultivar BRS Pampa. |
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Palavras-Chave: |
Diazotrophic bacteria. |
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Thesagro: |
Arroz; Fixação de Nitrogênio; Inoculante; Nitrogênio. |
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Thesaurus Nal: |
Economic impact; Irrigated soils; Lowlands; Nitrogen; Nitrogen fixation; Subtropical soils. |
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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/doc/1159752/1/Journal-agr-rural-development-tropics-subtropics-2023.pdf
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Marc: |
LEADER 02275naa a2200289 a 4500
001 2159752
005 2023-12-14
008 2023 bl uuuu u00u1 u #d
022 $a2363-6033
024 7 $ahttps://doi.org/10.17170/kobra-202306128202$2DOI
100 1 $aWANDER, A. E.
245 $aEconomic evaluation of biological nitrogen fixation in flooded rice cultivation in subtropical lowlands.$h[electronic resource]
260 $c2023
520 $aThis study aimed to assess the economic viability of biological nitrogen fixation in flood rice cultivation in subtropical lowlands. A field experiment of seven treatments was carried out during the cropping seasons 2015/16, 2017/18, 2018/19 and 2019/20 at the Lowland Experimental Station of Embrapa, in Pelotas, RS, Brazil. The evaluated treatments were: (1) negative control (without N and inoculant); (2) positive control with recommended N-fertilisation (120 kg N ha−1, without inoculant) (standard recommendation); (3) inoculant 1 (accessions CMM 174 + CMM 175 + CMM 179); (4) inoculant 2 (accessions CMM 176 + CMM 197 + CMM 205); (5) combination of reduced N-fertiliser doses (90 kg N ha−1) + inoculant 1; (6) combination of reduced N-fertiliser doses (90 kg N ha−1) + inoculant 2; and (7) commercial inoculant [Azospirillum brasilense (strains Ab-V5 and Ab-V6)]. A partial budget was used to compare evaluated treatments with the standard recommendation regarding nitrogen fertilisation. Inoculant 2 composed of bacterial accessions CMM 176 (Rhizobium sp.), CMM 197 (Bacillus sp.) and CMM 205 (Aeromicrobium sp.) combined with reduced mineral nitrogen fertilisation [90 kg N ha−1 (applied in top dressing)] demonstrates the best agroeconomic efficiency in the production of irrigated rice in subtropical lowlands with the cultivar BRS Pampa.
650 $aEconomic impact
650 $aIrrigated soils
650 $aLowlands
650 $aNitrogen
650 $aNitrogen fixation
650 $aSubtropical soils
650 $aArroz
650 $aFixação de Nitrogênio
650 $aInoculante
650 $aNitrogênio
653 $aDiazotrophic bacteria
700 1 $aMATTOS, M. L. T.
773 $tJournal of Agriculture and Rural Development in the Tropics and Subtropics$gv. 124, n. 1, p. 57-63, 2023.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
23/08/2019 |
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Data da última atualização: |
12/02/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
JUSTINO, L. F.; ALVES JÚNIOR, J.; BATTISTI, R.; HEINEMANN, A. B.; LEITE, C. V.; EVANGELISTA, A. W. P.; CASAROLI, D. |
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Afiliação: |
LUDMILLA FERREIRA JUSTINO, UFG; JOSE ALVES JUNIOR, UFG; RAFAEL BATTISTI, UFG; ALEXANDRE BRYAN HEINEMANN, CNPAF; CAIO VINICIUS LEITE, INSTITUTO FEDERAL DE BRASÍLIA; ADAO WAGNER PEGO EVANGELISTA, UFG; DERBLAI CASAROLI, UFG. |
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Título: |
Assessment of economic returns by using a central pivot system to irrigate common beans during the rainfed season in Central Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Agricultural Water Management, v. 224, 2019. |
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ISSN: |
0378-3774 |
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DOI: |
10.1016/j.agwat.2019.105749 |
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Idioma: |
Inglês |
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Conteúdo: |
Irrigation improves yield, but can create conflicts with other water uses during dry periods. Based on this, the aim of this study is to assess the economic returns provided by irrigation of common beans during the rainfed season in Central Brazil. Common bean yield was simulated for 30 growing seasons using the crop model DSSATCROPGRO-Drybean, with parameters calibrated for the cultivar Pérola. The yield simulations considered sowing dates from Nov. 01 to Jan. 01 at each 15 days, and four water managements: rainfed and irrigation starting at 70, 50 and 30% of the total soil water available (TSWA). Yield and irrigation costs were obtained from official institutes that assess net revenue considering sales prices from R$ 1.33 to R$ 5.00 per kg. The rainfed system yield ranged from 500 to 3000 kg ha−1. The irrigation at 70, 50 and 30% of TWSA increased yield, respectively, from 26.7 to 41.4%, from 5.5 to 14.5%, and from 0.4 to 2.4% in relation to the rainfed system with ranges depending on sowing dates. The average demand of 53mm cycle−1 (range between 0 to 100mm cycle−1) was required by the water management 70% of TSWA. However, the 50% of TSWA required an average demand of 19mm cycle−1, and the 30% of TSWA in most growing seasons did not require irrigation. The net revenue was affected by sales prices and sowing dates (preferentially early sowing). A minimum sales price ranging from R$1.85 to R$ 2.83 per kg is required, according to the water management and the sowing date, for an internal return rate higher than 12%. Irrigation at 70% of TSWA provided a similar or better economic index and a higher yield than the rainfed system. It is an interesting water management option because water is used when the river water level is higher, ensuring yield stability and food production. MenosIrrigation improves yield, but can create conflicts with other water uses during dry periods. Based on this, the aim of this study is to assess the economic returns provided by irrigation of common beans during the rainfed season in Central Brazil. Common bean yield was simulated for 30 growing seasons using the crop model DSSATCROPGRO-Drybean, with parameters calibrated for the cultivar Pérola. The yield simulations considered sowing dates from Nov. 01 to Jan. 01 at each 15 days, and four water managements: rainfed and irrigation starting at 70, 50 and 30% of the total soil water available (TSWA). Yield and irrigation costs were obtained from official institutes that assess net revenue considering sales prices from R$ 1.33 to R$ 5.00 per kg. The rainfed system yield ranged from 500 to 3000 kg ha−1. The irrigation at 70, 50 and 30% of TWSA increased yield, respectively, from 26.7 to 41.4%, from 5.5 to 14.5%, and from 0.4 to 2.4% in relation to the rainfed system with ranges depending on sowing dates. The average demand of 53mm cycle−1 (range between 0 to 100mm cycle−1) was required by the water management 70% of TSWA. However, the 50% of TSWA required an average demand of 19mm cycle−1, and the 30% of TSWA in most growing seasons did not require irrigation. The net revenue was affected by sales prices and sowing dates (preferentially early sowing). A minimum sales price ranging from R$1.85 to R$ 2.83 per kg is required, according to the water managemen... Mostrar Tudo |
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Thesagro: |
Feijão; Irrigação por Pivô Central; Manejo de Água; Phaseolus Vulgaris. |
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Thesaurus NAL: |
Crop models; Economic analysis; Irrigation management; Risk factors; Yields. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02812naa a2200325 a 4500
001 2111575
005 2020-02-12
008 2019 bl uuuu u00u1 u #d
022 $a0378-3774
024 7 $a10.1016/j.agwat.2019.105749$2DOI
100 1 $aJUSTINO, L. F.
245 $aAssessment of economic returns by using a central pivot system to irrigate common beans during the rainfed season in Central Brazil.$h[electronic resource]
260 $c2019
520 $aIrrigation improves yield, but can create conflicts with other water uses during dry periods. Based on this, the aim of this study is to assess the economic returns provided by irrigation of common beans during the rainfed season in Central Brazil. Common bean yield was simulated for 30 growing seasons using the crop model DSSATCROPGRO-Drybean, with parameters calibrated for the cultivar Pérola. The yield simulations considered sowing dates from Nov. 01 to Jan. 01 at each 15 days, and four water managements: rainfed and irrigation starting at 70, 50 and 30% of the total soil water available (TSWA). Yield and irrigation costs were obtained from official institutes that assess net revenue considering sales prices from R$ 1.33 to R$ 5.00 per kg. The rainfed system yield ranged from 500 to 3000 kg ha−1. The irrigation at 70, 50 and 30% of TWSA increased yield, respectively, from 26.7 to 41.4%, from 5.5 to 14.5%, and from 0.4 to 2.4% in relation to the rainfed system with ranges depending on sowing dates. The average demand of 53mm cycle−1 (range between 0 to 100mm cycle−1) was required by the water management 70% of TSWA. However, the 50% of TSWA required an average demand of 19mm cycle−1, and the 30% of TSWA in most growing seasons did not require irrigation. The net revenue was affected by sales prices and sowing dates (preferentially early sowing). A minimum sales price ranging from R$1.85 to R$ 2.83 per kg is required, according to the water management and the sowing date, for an internal return rate higher than 12%. Irrigation at 70% of TSWA provided a similar or better economic index and a higher yield than the rainfed system. It is an interesting water management option because water is used when the river water level is higher, ensuring yield stability and food production.
650 $aCrop models
650 $aEconomic analysis
650 $aIrrigation management
650 $aRisk factors
650 $aYields
650 $aFeijão
650 $aIrrigação por Pivô Central
650 $aManejo de Água
650 $aPhaseolus Vulgaris
700 1 $aALVES JÚNIOR, J.
700 1 $aBATTISTI, R.
700 1 $aHEINEMANN, A. B.
700 1 $aLEITE, C. V.
700 1 $aEVANGELISTA, A. W. P.
700 1 $aCASAROLI, D.
773 $tAgricultural Water Management$gv. 224, 2019.
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Embrapa Arroz e Feijão (CNPAF) |
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