The objective of this work was to evaluate the environmental effects of the use of pig slurry to irrigate the corn crop grown in a typical Red Distroferric Latosol and in leachate composition. Twenty four lysimeters, filled with soil, in a protected environment, received five doses of pig slurry (0; 112.5; 225; 337.5 and 450 m3 ha-1 per growing cycle) combined with two mineral fertilization doses (50 and 75% of the recommended dose - 80 kg ha-1of nitrogen). Corn height and yield were evaluated, as well as nutrients in the soil and in leachate. From the results obtained in the first year of experiment, it was concluded that the concentrations of nitrate increased by increase of pig slurry application, and thus, it would be necessary to develop further studies in medium and long term.
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机译：这项工作的目的是评估使用猪粪来灌溉典型的红色Distroferric Latosol和渗滤液组成中生长的玉米作物的环境影响。在受保护的环境中，充满土壤的二十四个测渗仪接受了五剂猪粪（每个生长周期为0; 112.5; 225; 337.5和450 m3 ha-1），并结合了两种矿物施肥剂量（分别为50和75％）。建议剂量-80 kg ha-1的氮气）。评价了玉米的高度和产量，以及土壤和沥滤液中的养分。从实验的第一年获得的结果可以得出结论，硝酸盐的浓度会随着猪粪浆施用量的增加而增加，因此有必要在中长期内开展进一步的研究。
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