Title:	Soil chemical properties in banana crops fertigated with treated wastewater.
Authors:	ALVES, P. F. S. SANTOS, S. R. dos KONDO, M. K. PEGORARO, R. F. PORTUGAL, A. F.
Affiliation:	PABLO FERNANDO SANTOS ALVES, Universidade Estadual de Montes Claros; SILVÂNIO RODRIGUES DOS SANTOS, Universidade Estadual de Montes Claros; MARCOS KOITI KONDO, Universidade Estadual de Montes Claros; RODINEI FACCO PEGORARO, Universidade Federal de Minas Gerais; ARLEY FIGUEIREDO PORTUGAL, CNPMS.
Date Issued:	2019
Citation:	Revista Caatinga, v. 32, n. 1, p. 234-242, jan./mar. 2019.
Description:	Determining the effects of using wastewater as fertilizer on soil chemical properties allows a safe reuse of this effluent in agriculture. This study evaluated the effects of fertigation with tertiary treated wastewater (TTW) from the Janaúba sewage treatment plant on chemical properties of a Latosol (Oxisol) with banana crops of the Prata-Anã cultivar in the semiarid region of Brazil. A randomized complete block design with four replications was used to test four TTW rates (70%, 130%, 170%, and 200% of the limit of 150 kg ha-1 year-1 of Na that can be applied to the soil) and compare them to a control without TTW. Soil samples from the 0.0-0.2, 0.2-0.4, 0.4-0.6, and 0.6-0.8 m layers were collected at the end of the first crop cycle to evaluate soil chemical properties?pH, soil organic matter (SOM), P, K, Na, Ca, Mg, Al, potential acidity (H+Al), base saturation, B, Cu, Fe, Mn, Zn, remaining P, and electrical conductivity (EC). The use of TTW increases soil pH and decreases exchangeable Al content, thus, reduces the need for liming. However, Na contents increased faster than EC in the soil, indicating that the use of TTW tends to alter soil physical properties over time. The use of TTW had no effect on the soil OM, P, Ca, Mg, and micronutrients contents, potential acidity, and base saturation. The changes in soil chemical attributes observed at the end of the first crop cycle were not limiting to the banana crop.
Thesagro:	Sódio Nutrição Vegetal
Keywords:	Reúso de água Esgoto Efluente
DOI:	10.1590/1983-21252019v32n123rc
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMS)