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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
15/04/2024 |
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Data da última atualização: |
15/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HIGASHIKAWA, F. S.; KURTZ, C.; ALVES, D. P.; WAMSER, G. H.; MANFIO, C. E. |
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Título: |
Effect of potassium fertilization on sweet potato cultivation. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Tropical, Goiânia, v. 54, p. 1-11, 2024. |
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Idioma: |
Inglês |
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Conteúdo: |
The sweet potato yield in Brazil remains significantly below the crop potential, primarily due to either the absence or inadequate application of fertilizers. This study aimed to assess the sweet potato yield, soil potassium availability, nutrient uptake in shoots, storage roots and whole plant, as well as the correlation between nutrients, with increasing rates (0, 50, 100, 200 and 350 kg ha-1) of K2O, in Humic Cambisol. After harvesting, the total and marketable yield of storage roots, soil available K levels, and nutrient contents in shoots, storage roots and whole plant were assessed. The maximum efficiency was achieved at 229 kg ha-1 of K2O, while the economically optimum rate was observed at 171 kg ha-1 of K2O. The sweet potato?s response to the potassium fertilizer application in Humic Cambisol tends to diminish if the available K content exceeds 146 mg dm-3. The use of KCl as a K source may induce a reduced sulfur absorption, probably due to the antagonistic effect between Cl- and SO42-. |
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Thesagro: |
critical potassium content in the soil; Ipomoea batatas (L) Lam; storage roots. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01628naa a2200205 a 4500
001 1134403
005 2024-04-15
008 2024 bl uuuu u00u1 u #d
100 1 $aHIGASHIKAWA, F. S.
245 $aEffect of potassium fertilization on sweet potato cultivation.$h[electronic resource]
260 $c2024
520 $aThe sweet potato yield in Brazil remains significantly below the crop potential, primarily due to either the absence or inadequate application of fertilizers. This study aimed to assess the sweet potato yield, soil potassium availability, nutrient uptake in shoots, storage roots and whole plant, as well as the correlation between nutrients, with increasing rates (0, 50, 100, 200 and 350 kg ha-1) of K2O, in Humic Cambisol. After harvesting, the total and marketable yield of storage roots, soil available K levels, and nutrient contents in shoots, storage roots and whole plant were assessed. The maximum efficiency was achieved at 229 kg ha-1 of K2O, while the economically optimum rate was observed at 171 kg ha-1 of K2O. The sweet potato?s response to the potassium fertilizer application in Humic Cambisol tends to diminish if the available K content exceeds 146 mg dm-3. The use of KCl as a K source may induce a reduced sulfur absorption, probably due to the antagonistic effect between Cl- and SO42-.
650 $acritical potassium content in the soil
650 $aIpomoea batatas (L) Lam
650 $astorage roots
700 1 $aKURTZ, C.
700 1 $aALVES, D. P.
700 1 $aWAMSER, G. H.
700 1 $aMANFIO, C. E.
773 $tPesquisa Agropecuária Tropical, Goiânia$gv. 54, p. 1-11, 2024.
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Registro original: |
Epagri-Sede (Epagri-Sede) |
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| Registros recuperados : 67 | |
| 2. |  | ALVES, D. P.; WAMSER, G. H. CEBOLA. In: Epagri. Avaliação de cultivares para o estado de Santa Catarina 2015-2016. FLORIANÓPOLIS: Epagri, 2016. 2 p. (Epagri. Boletim Técnico, 171).| Tipo: Folder/Folheto/Cartilha |
| Biblioteca(s): Epagri-Sede. |
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| 9. | | MANFIO, C. E.; WAMSER, G. H.; ALVES, D. P. Uso de substratos no cultivo de batata-doce. In: SEMINÁRIO INTERINSTITUCIONAL DE ENSINO, PESQUISA E EXTENSÃO, 25., 2020, Cruz Alta, RS. Resumos... Cruz Alta, RS: Unicruz, 2020.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Epagri-Sede. |
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| 19. | | MANFIO, C. E.; ALVES, D. P.; WAMSER, G. H.; HIGASHIKAWA, F. S.; VIEIRA NETO, J. Utilização de adubação orgânica no cultivo de batata-doce. In: SEMINÁRIO INTERINSTITUCIONAL DE ENSINO, PESQUISA E EXTENSÃO, 25., 2020, Cruz Alta, RS. Resumos... Cruz Alta, RS: Unicruz, 2020.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Epagri-Sede. |
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| 20. | | MANFIO, C. E.; ALVES, D. P.; WAMSER, G. H.; HIGASHIKAWA, F. S.; VIEIRA NETO, J. Uso de herbicidas no cultivo de batata-doce. In: SEMINÁRIO INTERINSTITUCIONAL DE ENSINO, PESQUISA E EXTENSÃO, 25., 2020, Cruz Alta, RS. Resumos... Cruz Alta, RS: Unicruz, 2020.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Epagri-Sede. |
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| Registros recuperados : 67 | |
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