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| Registros recuperados : 102 | |
| 7. |  | KNOBLAUCH, R. Disponibilidade de nutrientes para oa arroz irrigado pré-germinado, em um solo orgânico do município de Guaramirm, SC. In: CONGRESSO BRASILEIRO DO ARROZ IRRIGADO, 2. REUNIÃO DA CULTURA DO ARROZ IRRIGADO, 24., 2001, Porto Alegre, RS. Arroz: alimento de qualidade para todos. Porto Alegre, RS.: IMPA Artes gráficas, 2001. p. 273-275.| Biblioteca(s): Epagri-Sede. |
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| 13. | | KNOBLAUCH, R.; STUKER, H. Eficiência da ureia em função da forma de aplicação no cultivo do arroz irrigado: sistema pré-germinado. In: CONGRESSO BRASILEIRO DO ARROZ IRRIGADO, 5. REUNIÃO DA CULTURA DO ARROZ IRRIGADO, 27., 2007, Pelotas, RS. Arroz irrigado: avaliando o presente, pensando o futuro. Pelotas, RS: [s.n.], 2007. p. 501-503.| Biblioteca(s): Epagri-Sede. |
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| 18. | | KNOBLAUCH, R.; SCHIOCCHET, M. A. Componentes do rendimento e produtividade do arroz irrigdo em sistema pré-germinado, em duas regiões de Santa Catarina. In: CONGRESSO BRASILERO DE ARROZ IRRIGADO, 2. REUNIÃO DA CULTURA DO ARROZ IRRIGADO, 24., 2001, Porto Alegre, RS.. Arroz, alimento de qualidade para todos. Porto Alegre, RS.: IMPA Artes Gráficas, 2001. p. 130-133.| Biblioteca(s): Epagri-Sede. |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
13/03/2020 |
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Data da última atualização: |
13/03/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - B |
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Autoria: |
SCHMIDT, F.; KNOBLAUCH, R. |
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Título: |
Extended use of poultry manure as a nutrient source for flood-irrigated rice crop. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v. 55, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate changes in the soil chemical properties, nitrogen use efficiency, and grain yield of flood-irrigated rice fields after the addition of poultry manure during five years. Trials were carried out in a randomized complete block design, with three replicates. The treatments were: chemical fertilizers, N-P2O5-K2O; control, no fertilizers; and poultry manure doses, 2.5, 5.0, and 10.0 Mg ha-1. Poultry manure increased soil pH, base saturation, and phosphorus, potassium, calcium, and zinc contents more than the chemical fertilizers. Adding poultry manure to the soil increased N ammonification (35 mg kg-1 NH4+-N) from the first to the fourth week after rice was sown. The exclusive use of poultry manure was not sufficient to provide adequate nutrition to rice plants after the decrease in NH4 +-N content in the soil. The cumulative N uptake by plants and rice yield were lower with poultry manure application than with the chemical fertilizers. Adding poultry manure to flood-irrigated rice fields for five years alters soil chemical properties, improves fertility, does not favor nitrogen use efficiency by rice plants, and promotes a lower grain yield than the chemical fertilizers. |
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Palavras-Chave: |
adubos orgânicos; disponibilidade de nutrientes; ryza sativa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01750naa a2200169 a 4500
001 1129445
005 2020-03-13
008 2020 bl uuuu u00u1 u #d
100 1 $aSCHMIDT, F.
245 $aExtended use of poultry manure as a nutrient source for flood-irrigated rice crop.$h[electronic resource]
260 $c2020
520 $aThe objective of this work was to evaluate changes in the soil chemical properties, nitrogen use efficiency, and grain yield of flood-irrigated rice fields after the addition of poultry manure during five years. Trials were carried out in a randomized complete block design, with three replicates. The treatments were: chemical fertilizers, N-P2O5-K2O; control, no fertilizers; and poultry manure doses, 2.5, 5.0, and 10.0 Mg ha-1. Poultry manure increased soil pH, base saturation, and phosphorus, potassium, calcium, and zinc contents more than the chemical fertilizers. Adding poultry manure to the soil increased N ammonification (35 mg kg-1 NH4+-N) from the first to the fourth week after rice was sown. The exclusive use of poultry manure was not sufficient to provide adequate nutrition to rice plants after the decrease in NH4 +-N content in the soil. The cumulative N uptake by plants and rice yield were lower with poultry manure application than with the chemical fertilizers. Adding poultry manure to flood-irrigated rice fields for five years alters soil chemical properties, improves fertility, does not favor nitrogen use efficiency by rice plants, and promotes a lower grain yield than the chemical fertilizers.
653 $aadubos orgânicos
653 $adisponibilidade de nutrientes
653 $aryza sativa
700 1 $aKNOBLAUCH, R.
773 $tPesquisa Agropecuária Brasileira, Brasília$gv. 55, 2020.
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