Chemical attributes of a Hapludox soil after nine years of pig slurry application

Pesquisa Agropecuária Brasileira

Milton Da Veiga²  Carla Maria Pandolfo²  Alvadi Antonio Balbinot Junior¹  Evandro Spagnollo¹ 

[1] ,Empresa de Pesquisa Agropecuária e Extensão Rural de Santa CatarinaCampos Novos SC ,Brazil

关键词: acidification;    micronutrients;    no-tillage system;    soil fertility;    soil pollution;    soil quality;    acidificação;    micronutrientes;    sistema de plantio direto;    fertilidade do solo;    poluição do solo;    qualidade do solo;   

DOI  :  10.1590/S0100-204X2012001200013

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY   
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