Nutrients behavior from the association pig slurry and chemical fertilizers on soybean crop
This study aimed at evaluating the effects of pig slurry application with mineral fertilizer on ions leaching from the soil in soybean crop. The experiment was carried out in 24 drainage lysimeters under protection. The soybean cultivar CD 202/COODETEC was sown in a soil that received 0, 100, 200 an...
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Veröffentlicht in: | Brazilian Archives of Biology and Technology 2013-10, Vol.56 (5), p.723-733 |
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Sprache: | eng |
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Zusammenfassung: | This study aimed at evaluating the effects of pig slurry application with mineral fertilizer on ions leaching from the soil in soybean crop. The experiment was carried out in 24 drainage lysimeters under protection. The soybean cultivar CD 202/COODETEC was sown in a soil that received 0, 100, 200 and 300 m super(3)ha super(-1)of pig slurry in one cycle, with or without mineral fertilizer. There were three samplings of soil throughout the trial to determine the pH, N, NO3 super(-), K+, Ca super(2+), Mg super(2+), Na+, Cu super(+2), Zn super(+2), OM, CEC, EC and SAR six times during the crop cycle. The yield was determined in the plants. In soil, pig slurry increased the concentrations of pH, NO3 super(-), K+, Zn super(+2), OM and CEC, while mineral fertilizer increased P and Zn super(+2)concentrations. The limits observed for the leachate parameters did not present environmental problems according to the Brazilian legislation, but in the intermediate and long term, there special attention should be given to NO3 super(-), P, Na+, EC and SAR. Soybean yield was higher with mineral fertilizer and increased with pig slurry application. |
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ISSN: | 1516-8913 1678-4324 1516-8913 1678-4324 |
DOI: | 10.1590/S1516-89132013000500003 |