Effects of irrigation with treated wastewater on olive tree growth, yield and leaf mineral elements at short term

Abstract

In arid regions, such as Tunisia, the reuse of treated wastewater (TWW) in agriculture can be a sustainable solution for water scarcity. A two-year field experiment was conducted in order to investigate the short term effects of TWW on olive growth, yield and concentration of total nitrogen (Nt), potassium (K), phosphorous (P), and heavy metals (i.e. Zn, Mn, Pb and Cd) in olive leaves. Olive trees were subjected to the following irrigation treatments: (i) trees irrigated with well water (WW) and (ii) trees irrigated with treated wastewater (TWW). For both treatments, the TWW and WW were applied at a rate of 4.5m3 day−1 tree−1 (5000m3 ha−1 year−1). After two years, non-significant injuries caused by salts and/or heavy metals were observed on shoot growth of trees irrigated with TWW. The application of TWW significantly increased concentration of Nt, P and K in the leaves, whereas heavy metals (Zn and Mn) showed a significant increase only after the second year of irrigation.


Autore Pugliese

Tutti gli autori

  • FERRARA G.

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2010

ISSN

0304-4238

ISBN

Non Disponibile


Numero di citazioni Wos

32

Ultimo Aggiornamento Citazioni

Non Disponibile


Numero di citazioni Scopus

37

Ultimo Aggiornamento Citazioni

Non Disponibile


Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile