Swine farm wastewater and mineral fertilization in corn cultivation

Revista Brasileira de Engenharia Agrícola e Ambiental

Pereira, Pâmela A. M.²  Rosa, Danielle M.²  Sampaio, Silvio C.²  Correa, Marcus M.¹  Reis, Ralpho R. dos² 

[1]Universidade Federal Rural de Pernambuco, Recife, Brazil

[2]Universidade Estadual do Oeste do Paraná, Cascavel, Brazil

关键词: fertigation;    water reuse;    swine waste;   

DOI  :  10.1590/1807-1929/agriambi.v20n1p49-54

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

In the long run, swine wastewater can provide benefits to the soil-plant relationship, when its use is planned and the potential environmental impacts are monitored. The objective of this study was to investigate the effects of continuous application of swine wastewater, associated with mineral fertilization, after six years of management in no-tillage and crop rotation (14 production cycles), on the chemical conditions of the soil and the corn crop. The doses of wastewater were 0, 100, 200, 300 m3 ha-1 during the cycle. The effects of the association between mineral fertilization at sowing and swine wastewater were evaluated simultaneously. Swine wastewater at the dose of 100 m3 ha-1 promoted availability and absorption of P, K+, Mg2+ and Zn2+ without causing toxicity to plants or damage to the soil, constituting a viable, low-cost alternative of water reuse and fertilization for farmers. The nutrients N, P, K+ and B must be complemented with mineral fertilization. Special attention should be directed to the accumulation of Zn2+ in the soil along the time of swine wastewater application.

【 授权许可】

Unknown