Data/hora: 12/06/2024 15:00:03

Provedor de dados: | 90
País: | Brazil
Título: | Forms of inorganic phosphorus in soil under different long term soil tillage systems and winter crops
Autores: | Tiecher,Tales; Santos,Danilo Rheinheimer dos; Kaminski,João; Calegari,Ademir.
Data: | 2012-02-01
Ano: | 2012
Palavras-chave: | No tillage; Conventional tillage; Lability; Phosphorus fractionation; Cover crops; Soil management.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000100028
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/S0100-06832012000100028
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.36 n.1 2012
Fonte: | info:eu-repo/semantics/openAccess