scholarly journals Performance of a Pilot-Scale Constructed Wetland and Medium-Term Effects of Treated Wastewater Irrigation of Arundo donax L. on Soil and Plant Parameters

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 1994
Author(s):  
Mario Licata ◽  
Francesco Rossini ◽  
Giuseppe Virga ◽  
Roberto Ruggeri ◽  
Davide Farruggia ◽  
...  

On marginal lands in the Mediterranean basin, giant reed (Arundo donax L.) represents one of the most interesting perennial crops due to high levels of biomass production. Considering periodic water shortage during the summer months in this area, the reuse of treated wastewater (TWW) would seem to be a good opportunity for the growth of the species. The aim of this study was to assess the medium-term effects of irrigation using freshwater (FW) and TWW on soil characteristics and growth in giant reed plants. TWW was obtained from a pilot-scale horizontal subsurface flow constructed wetland system (HSSF CWs) with a total surface area of 100 m2. A split-plot design for a two-factor experiment was used with three replications. Medium-term TWW irrigation increased organic matter and plant nutrients in the soil; however, pH was not affected. Plants irrigated with TWW showed greater growth (+10.49% in height, +12.75% in stem diameter, +11.51% in above-ground biomass) than those irrigated with FW. The higher heating value of crop residues ranged between 16.83 (FW-irrigated plants) and 17.00 MJ kg−1 (TWW-irrigated plants). Results show that HSSF CWs produces TWW, which can be an alternative source of water for growing giant reed with high biomass performance.

2016 ◽  
Vol 84 ◽  
pp. 176-188 ◽  
Author(s):  
Luigi Pari ◽  
Maria Dolores Curt ◽  
Javier Sánchez ◽  
Enrico Santangelo

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Piergiorgio Gherbin ◽  
Simone Milan ◽  
Giuseppe Mercurio ◽  
Antonio Scopa

The increasing interest in<em> Arundo donax,</em> a perennial lignocellulosic species only reproducing by propagation, requires the setup of cheap, simple and reliable techniques. Considering these targets, stem cutting offers considerable advantages. The present investigation aimed to compare: i) plants obtained by different propagation methods (by rhizome and micropropagation mother plants); ii) plants obtained by stem cuttings from basal, central and apical parts of the stem; iii) different planting periods (spring, summer, autumn). The obtained results showed that the number of new shoots from stem buds was: i) higher in the spring and lower in the summer planting period; ii) higher from cuttings obtained by micropropagated than rhizome mother plants, both in spring and summer plantings; iii) decreasing passing from the basal to the apical stem portion; iv) partly unexpressed in the autumn planting period; v) lower from one-year stem cuttings as compared to two-year stem cuttings.


2018 ◽  
pp. 31-39 ◽  
Author(s):  
Ida Di Mola ◽  
Gianpiero Guida ◽  
Carmela Mistretta ◽  
Pasquale Giorio ◽  
Rossella Albrizio ◽  
...  

The soil salinity increase in the Mediterranean basin is one of the consequences of the climate change. The aim of this study was to evaluate the adaptability of giant reed (Arundo donax L.) to salinity, in conditions of higher temperatures, in order to hypothesise the future use of giant reed under these conditions. The trial was carried out in pots under a permanent metal structure, open on the sides and with a clear PE on the top. Four levels of soil salinity in the range 3.3-15.5 dS m–1 were imposed. The stem number of the most stressed treatment was about 45% lower than the control and also the stem height was lower than in all other treatments. The green and yellow leaf number decreased as the soil salinity increased, and their sum was significantly lower in the two most stressed treatments. Osmotic potential of the leaf sap was not affected by salinity. Leaf water potential and stomatal conduc- conductance in the saline treatments were lower than in the control. tance Assimilation rate showed similar pattern of stomatal conductance. Intrinsic WUE remained almost stable until July and increased during August under the most stressful conditions. PSII photochemistry was not affected by soil salinity. Biomass yield was not different from the control until to soil ECe 12.0 dS m–1: only the most stressed treatment (15.5 dS m–1) caused yield losses (50%). Tolerance threshold to salinity was 11.2 dS m–1 and the relative yield losses were 11.6% per dS m–1.


2014 ◽  
Vol 69 ◽  
pp. 21-27 ◽  
Author(s):  
Valeria Cavallaro ◽  
Cristina Patanè ◽  
Salvatore L. Cosentino ◽  
Isabella Di Silvestro ◽  
Venera Copani

2013 ◽  
Vol 51 ◽  
pp. 117-119 ◽  
Author(s):  
Maurizio Borin ◽  
Antonio C. Barbera ◽  
Mirco Milani ◽  
Giovanni Molari ◽  
Santo M. Zimbone ◽  
...  

2013 ◽  
Vol 8 (4) ◽  
pp. 29 ◽  
Author(s):  
Nunzio Fiorentino ◽  
Massimo Fagnano ◽  
Paola Adamo ◽  
Adriana Impagliazzo ◽  
Mauro Mori ◽  
...  

2013 ◽  
Vol 70 (1) ◽  
pp. 168-175 ◽  
Author(s):  
A. Pompeiano ◽  
F. Vita ◽  
S. Miele ◽  
L. Guglielminetti

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