| Registro completo |
| Provedor de dados: |
Agronomy
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| País: |
Brazil
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| Título: |
Sugarcane cultivation with source potassium low water-soluble
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| Autores: |
Korndorfer, Gaspar Henrique
Pereira, Hamilton Seron
Duarte, Ivaniele Nahas
Pinto, Laerte Rocha Neves
Fonseca, Luciano Ferreira da
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| Data: |
2018-05-15
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| Ano: |
2018
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| Palavras-chave: |
Thermopotash
Potassium chloride
Soil
Saccharum spp.
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| Resumo: |
Thermopotash is a fertilizer with low solubility but has a release level compatible with plant demands. This study aimed to compare the effect of Thermopotash to that of KCl in sugarcane. Field work was conducted during two crop seasons, in a randomised block design. Treatments were applied to the bases of the furrows before planting the sugarcane, arranged in a 2 x 5 factorial design to evaluate two K sources (TK47 - Thermopotash, KCl - potassium chloride) at five levels of K (0, 50, 100, 150, and 200 kg ha-1 K2O). The variables analysed included leaf and soil K, Ca, Mg and Si, soil pH and productivity. The effects of the TK47 fertilizer on sugarcane stalk production were not initially superior to that of the soluble source, but over time, differences between the soluble and insoluble sources increased. The maximum expected sugarcane productivity for both sources was 133 Mg ha-1, which was achieved at an application level of 121 kg ha-1 K2O. TK47 fertilizer provided K, Si, Ca and Mg to the sugarcane in both the first and second harvests. Thus, TK47 may be a viable source of K for sugarcane.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/36399
10.4025/actasciagron.v40i1.36399
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| Editor: |
Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/36399/pdf
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Agronomy; v. 40 (2018): Publicação Contínua; e36399
Acta Scientiarum. Agronomy; v. 40 (2018): Publicação Contínua; e36399
1807-8621
1679-9275
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| Direitos: |
Direitos autorais 2018 Acta Scientiarum. Agronomy
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