التفاصيل البيبلوغرافية
| العنوان: |
Phosphorus accumulation and pollution potential in a hapludult fertilized with pig manure |
| المؤلفون: |
Guardini, Renato, Comin, Jucinei José, Santos, Danilo Rheinheimer dos, Gatiboni, Luciano Colpo, Tiecher, Tales, Schmitt, Djalma, Bender, Marcos Antônio, Belli Filho, Paulo, Oliveira, Paulo Amando Victoria de, Brunetto, Gustavo |
| المصدر: |
Revista Brasileira de Ciência do Solo. August 2012 36(4) |
| بيانات النشر: |
Sociedade Brasileira de Ciência do Solo, 2012. |
| سنة النشر: |
2012 |
| مصطلحات موضوعية: |
organic fertilization, deep litter, environmental contamination |
| الوصف: |
Successive applications of pig litter to the soil surface can increase the phosphorus (P) content and alter its adsorption, promoting P transfer to surface or subsurface waters. The purpose of this study was to evaluate P accumulation and the pollution potential of a soil after application of pig litter. In March 2010, eight years after the installation of an experiment in Braço do Norte, Santa Catarina, SC, Brazil, on a Typic Hapludult, soil was sampled (layers 0-2.5, 2.5-5, 5-10, 10-15, 15-20 and 20-30 cm) after the following fertilization treatments: no pig litter fertilization, pig slurry application and pig manure application. In this period, 694 and 1,890 kg P2O5 ha-1 were applied in the treatments with pig slurry and pig manure, respectively. The P content was determined, based on Mehlich-1, anion exchange resin (AER), 0.01 mol L-1 CaCl2 and total P in the samples. The adsorption isotherm parameters were also determined by the Langmuir and Koski-Vähälä & Hartikainem models in the layers 0-2.5 and 20-30 cm. The application of 1,890 kg P2O5 ha-1 in the form of pig manure led to P accumulation, as evidenced by Mehlich-1, down to a depth of 15 cm, by AER and 0.01 mol L-1 CaCl2 down to 20 cm and by total P to 30 cm. After application of 1,890 kg P2O5 ha-1 in the form of pig manure, the values of maximum P adsorption capacity were lowest in the deepest layer (20-30 cm), indicating the occupation of part of the adsorption sites of the particles. The application of swine manure to the soil over eight years increased the P quantity in the soil solution of the surface layer, indicating environmental contamination risk for surface and subsurface waters. |
| نوع الوثيقة: |
article |
| وصف الملف: |
text/html |
| اللغة: |
English |
| تدمد: |
0100-0683 |
| DOI: |
10.1590/S0100-06832012000400027 |
| URL الوصول: |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000400027 |
| Rights: |
info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edssci.S0100.06832012000400027 |
| قاعدة البيانات: |
SciELO |