Swine wastewater associated with mineral fertilization on corn crop (Zea mays)

Engenharia Agrícola

Nathalie C. H. Kessler²  Silvio C. Sampaio¹  Mauren Sorace¹  Shaiane D. Lucas¹  Denise Palma¹ 

[1] ,UNIOESTE Programa de Pós-Graduação em Engenharia Agrícola Cascavel PR

关键词: manure;    soil fertility;    water reuse;    dejetos suínos;    fertilidade do solo;    reúso de água;   

DOI  :  10.1590/S0100-69162014000300018

来源: SciELO

【 摘 要 】

This study aimed to evaluate the agronomical and environmental aspects in corn, soil characteristics and leachate resulting from the material combination of swine wastewater and mineral fertilizer in the long run. The experimental area has a history of swine wastewater application for experiments conducted since 2006, this being the seventh crop cycle in the area. Four doses of swine wastewater (0; 100; 200 and 300 m³ ha-1) associated with presence and absence of mineral fertilizer were applied, consisting of eight treatments. The results obtained were subjected to variance analysis and means compared by Tukey test at 5% significance. We conclude that the swine wastewater can be partially used as an alternative fertilizer, since the P and Mn are complemented with specific fertilization. There must be carefulness about Fe+2, Cu+2 and Zn+2 accumulation in soil, and also to the concentrations of Fe+2, Cu+2, Zn+2, NO3- + NO2- and Na+ in leachate which exceeded the limits at the highest SWW applied levels.

【 授权许可】

CC BY   
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