Chemical attributes of a Hapludox soil after nine years of pig slurry application
The objective of this study was to evaluate the pig slurry application effects on chemical attributes of a Hapludox soil managed under no-tillage system. Treatments consisted of 50, 100 and 200 m³ ha-1 per year of pig slurry application, and a control with replacement of P and K exported through harvested grains. Attributes related to soil chemical reaction, exchange complex, and nutrient contents were determined in soil samples collected in the ninth year of experimentation from 0 - 0.025, 0.025 - 0.05, 0.05 - 0.10, 0.10 - 0.20, 0.20 - 0.40 and 0.40 - 0.60 m soil depths. The continuous application of high doses of pig slurry on the Oxisol surface under no-tillage acidifies the soil and increases Al, P, Cu, and Zn contents down to 0.2-m depth, and K levels down to 0.6-m depth.
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
2012
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012001200013 |
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