Volume 19, Issue 71 (spring 2015)                   jwss 2015, 19(71): 253-264 | Back to browse issues page


XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Falahati S, Adhami E. Effect of Vermicompost and Two Types of Zeolite (Firoozkoh and Semnan) on the Kinetic of Nickel Fixation in Two Calcareous Soils. jwss 2015; 19 (71) :253-264
URL: http://jstnar.iut.ac.ir/article-1-3017-en.html
Dept. of Soil Sci. group, College of Agric., Yasouj Univ., Yasouj, Iran. , eadhami@gmail.com
Abstract:   (10708 Views)

Current study conducted to evaluate the effects of vermicompost and zeolite on the kinetics of nickel (Ni) fixation. Treatments consisted of a factorial combination of two vermicompost levels (zero and 2 w/w percent), three zeolite levels (zero and 4 w/w percent of zeolite of Firoozkoh, and Semnan) and two soil textures (clay and sandy loam) in three replications. All treatments were spiked with 50 or 100 mg Ni kg-1. DTPA extractable Ni was determined after 5, 10, 20, 30, 60 and 90 days. Ni availability was higher in sandy loam texture. Vermicompost application increased Ni availability in sandy loam texture in all the designated times. Zeolite application had no significant effect on Ni availability. The trend of Ni availability decrease was composed of two distinct stages with high and low Ni fixation rates. In the first step which continued up to 30 d, the available Ni fixation rate was high and then decreased sharply. Ni fixation data was suitably prescribed using simple Elovich and exponential equations. It seems that vermicompost has a greater effect to prevents Ni fixation and to retain it in available form in light texture soils. On the other hand, it seems that zeolite does not have any considerable effect on Ni fixation in calcareous soils.

Full-Text [PDF 15 kb]   (2975 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2015/06/13 | Accepted: 2015/06/13 | Published: 2015/06/13

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | JWSS - Isfahan University of Technology

Designed & Developed by : Yektaweb