| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Solo
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| País: |
Brazil
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| Título: |
Forms of inorganic phosphorus in soil under different long term soil tillage systems and winter crops
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| Autores: |
Tiecher,Tales
Santos,Danilo Rheinheimer dos
Kaminski,João
Calegari,Ademir
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| Data: |
2012-02-01
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| Ano: |
2012
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| Palavras-chave: |
No tillage
Conventional tillage
Lability
Phosphorus fractionation
Cover crops
Soil management
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| Resumo: |
The cultivation of crops with different capacity of P uptake and use under long-term soil tillage systems can affect the distribution of P cycling and inorganic forms in the soil, as a result of higher or lower use efficiency of P applied in fertilizers. The purpose of this study was to evaluate the effect of long-term cultivation of different winter species under tillage systems on the distribution of inorganic P forms in the soil. In 1986, the experiment was initiated with six winter crops (blue lupin, hairy vetch, oat, oilseed radish, wheat and fallow) on a Rhodic Hapludox in southwestern Paraná, under no-tillage (NT) and conventional tillage (CT). The application of phosphate fertilizer in NT rows increased inorganic P in the labile and moderately labile forms, and soil disturbance in CT redistributed the applied P in the deeper layers, increasing the moderately labile P concentration in the subsurface layers. Black oat and blue lupin were the most efficient P-recyclers and under NT, they increased the labile P content in the soil surface layers.
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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=S0100-06832012000100028
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| Editor: |
Sociedade Brasileira de Ciência do Solo
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| Relação: |
10.1590/S0100-06832012000100028
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Ciência do Solo v.36 n.1 2012
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| Direitos: |
info:eu-repo/semantics/openAccess
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