Nutrients behavior from the association pig slurry and chemical fertilizers on soybean crop
AUTOR(ES)
Smanhotto, Adriana, Sampaio, Silvio César, Bosco, Tatiane Cristina Dal, Prior, Maritane, Soncela, Rosimaldo
FONTE
Braz. arch. biol. technol.
DATA DE PUBLICAÇÃO
2013-10
RESUMO
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 m³ha-1of 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-, K+, Ca2+, Mg2+, Na+, Cu+2, Zn+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-, K+, Zn+2, OM and CEC, while mineral fertilizer increased P and Zn+2concentrations. 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-, P, Na+, EC and SAR. Soybean yield was higher with mineral fertilizer and increased with pig slurry application.
Documentos Relacionados
- Poultry Litter and Pig slurry Applications in an Integrated Crop-Livestock System
- Chemical, Biological, and Biochemical Parameters of the Soil P Cycle After Long-Term Pig Slurry Application in No-Tillage System
- Nitrogen supply to arugula from pig slurry composts in contrasting soils
- Combined pig slurry and mineral fertilization for corn cultivation
- Investigation the natural radioactivity in local and imported chemical fertilizers