Main Article Content
This study aimed to evaluate the effect of treated wastewater application on soil organic matter and phosphorus recovery in a degraded soil in the semiarid region of Brazil. An experiment was carried out with irrigation of five caatinga forest species, in which three treatments were applied that consisted in the variation of the type and volume of water applied to the soil, being 7 L per week of tap water, 7 and 14 L per week of wastewater. After two years of irrigation, soil samples were taken and analyzed for soil organic matter and phosphorus. The organic matter content in the treatment with 14 L application of wastewater was five times higher than application of tap water in the superficial layer and 8 times higher in the sub-surface, respectively. From the results obtained, it can be considered that the use of wastewater from treated domestic sewage serve as an alternative for the recovery of the productive capacity of the soil by the increase in the organic matter and soil phosphorus contents. Irrigation with treated wastewater can provide a high increase in soil organic matter and phosphorus content up to 30 cm deep.
Doetterl S, Berhe AA, Swim Wang Z, Sommer Z, Fiener P. Erosion, deposition and soil carbon: A review of process-level controls, experimental tools and models to address C cycling in dynamic landscapes. Earth-Science Reviews. 2016;145:102-122.
Santos LMS, Tavares VMM, Meyer MF. Environmental, technical and economic feasibility evaluation of gravel extraction activity in the municipality of Arês - RN. Technical Scientific Congress of Engineering and Agronomy; 2015.
Becerra-Castro C, et al. Wastewater reuse in irrigation: A microbiological perspective on implications in soil fertility and human and environmental health. Environment International. 2015;75:117–135.
Bonini CSB, Alves MC, Montanari R. Sewage sludge and mineral fertilization in the recovery of chemical attributes of degraded soil. Brazilian Journal of Agricultural and Environmental Engineering. 2015;388–393.
Medeiros SS, Soares AA, Ferreira, PA, Souza JAA, Souza JA, Matos AT. Behavior of soil chemical attributes in response to domestic wastewater application. Brazilian Journal of Agricultural and Environmental Engineering, Campina Grande, PB. 2005; 9(Supplement):268-273.
Carvalho RS, Santos Filho JS, Santana LOG, Gomes DA, Mendonça LC, Faccioli GG. Influence of wastewater reuse on the microbiological quality of sunflower for animal feed. Ambi-Agua, Taubate. 2013; 8(2):157-167.
Klein C, Agne SA. A. phosphorus: From nutrient to pollutant! Electronic Journal on Environmental Management, Education and Technology. 2012;8(8):1713-1721.
Salcedo IH, Sampaio EVSB. Soil organic matter in the Caatinga biome. In: Santos, GA, Silva LS, Canellas LP, Camargo FAO. eds. Fundamentals of soil organic matter: Tropical and subtropical ecosystems. 2.ed. Porto Alegre, Metropolis. 2008;419- 441.
Galvão SRS, Salcedo IH. Soil phosphorus fractions in sandy soils amended with cattle manure for long periods. Brazilian Journal of Soil Science. 2009;33:613-622.
Brazil. Ministry of Agriculture. Exploratory and Soil Recognition Survey of Paraíba State. Bulletin 15, Pedology Series, 8, Rio de Janeiro; 1972.
Curcio GR, Lima VC, Giarola NFB. Anthroposols: Order proposal (1st approximation). Colombo: EMBRAPA Forests; 2004.
APHA. Standard methods for examining water and wastewater, 22nd edition edited by E.W. Rice, R.B. Baird, A.D. Eaton and L.S. Clesceri. American Public Health Association (APHA), American Water Works Association (AWWA) and Water Environment Federation (WEF), Washington, D.C., USA; 2012.
Teixeira PC, Donagemma GK, Fontana A, Teixeira WG. Manual of soil analysis methods. 3 ed. Brasilia. 2017;573.
Schulte EE, Peters JB, Hodgson P. Wisconsin procedures for soil testing, plant analysis and fud & forage analysis. Department of soil science. University of Wisconsin-Extension, Madison, WI. 1987; 9.
R Core Team. A: The language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria; 2018.
Ayers RS, Westcot DW. Water quality in agriculture. Campina Grande: Federal University of Paraíba. 1999;153.
Olatuyi SO, Akinremi OO, Flaten DN, Crow GH. Accompanying cations and anions affect the diffusive transport of phosphate in the model calcareous soil system. Canadian Journal of Soil Science. 2009; 89:179-188.
Azevedo RP, Salcedo IH, Lima PA, Fraga VS, Lana RMQ. Mobility of phosphorus from organic and inorganic source materials in a sandy soil. International Journal of Recycling of Organic Waste In Agriculture. 2018;7:153-163.