| Registro completo |
| Provedor de dados: |
Rev. Bras. Frutic.
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| País: |
Brazil
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| Título: |
Potassium fertilization for pineapple: effects on soil chemical properties and plant nutrition
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| Autores: |
Teixeira,Luiz Antonio Junqueira
Quaggio,José Antonio
Cantarella,Heitor
Mellis,Estêvão Vicari
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| Data: |
2011-06-01
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| Ano: |
2011
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| Palavras-chave: |
Plant analysis
Soil analysis
Potassium chloride
Potassium sulphate
Ananas comosus
K
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| Resumo: |
A field experiment was carried out on an Ultisol located at the city of Agudos (22º30'S; 49º03'W), in the state of São Paulo, Brazil, in order to determine the effects of rates and sources of potassium fertilizer on nutritional status of 'Smooth Cayenne' pineapple and on some soil chemical properties. The experiment was a complete factorial design with four rates (0, 175, 350, and 700 kg ha-1 of K2O) and three combinations of K sources (100% KCl, 100% K2SO4 and 40% K2SO4 + 60% KCl). Soil samples were taken from the depths 0-20 cm, 20-40 cm and 40-60 cm at planting and 14 months after. Nutritional status of pineapple plants was assessed by means of tissue analysis. Soil K availability increased with application of K fertilizer, regardless of K sources. Soil chlorine and Cl concentration in pineapple leaves increased with application of KCl or K2SO4+KCl. Plant uptake of potassium was shaped by soil K availability and by the application rates of K fertilizer, independently of K sources.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000200036
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| Editor: |
Sociedade Brasileira de Fruticultura
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| Relação: |
10.1590/S0100-29452011000200036
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Fruticultura v.33 n.2 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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