Effect of incubation period of different levels of apple and grape biochars on the adsorption behavior of phosphorus in a calcareous soil

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Rashidi Negar; SAMADI ABBAS; NIKBAKHT ALI MOHAMMAD

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Journal: APPLIED SOIL RESEARCH Year:2018 | Volume:6 | Issue:1 Page(s): 98-111

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Title

Effect of incubation period of different levels of apple and grape biochars on the adsorption behavior of phosphorus in a calcareous soil

Author(s)

Rashidi Negar | SAMADI ABBAS | NIKBAKHT ALI MOHAMMAD | Issue Writer Certificate

Keywords

AppleQ1

BiocharQ2

GrapeQ3

Phosphoruse sorptionQ3

Abstract

Organic manures can effect on phosphorus sorption and its availability. Biochar as a renewable organic source of phosphorus could have a significant role in the enhancement of increase phosphorus availability in calcareous soils In this study, phosphorus sorption was performed in a calcareous soil treated with two types of of Biochar prouduced from Apple and Grape pruning at 400 ° C at different rates (0, 10 and 20 g kg-1 soil, w/w) and three incubation periods (40, 80, 120 days). Phosphorus adsorption data were fitted to Langmuir, Freundlich and Temkin models. According to the observations the use of Biochar reduced phosphorus adsorption in the soil while increased the release of phosphorus. Based on the coefficient of determination (R2) and the standard error of estimation (SE), all three models Langmuir, Freundlich and Temkin fitted well with the experimental data. High values of Langmuir (qmax) was observed (785 mg. kg-1) in untreated soil and low values were observed (415 mg. kg-1) at the 2g. kg-1 levels of Grape Biochar. Moreover the binding energy (Kl) declined from 0. 3 to 0. 04 (l mg-1). Capacity parameters (KF) of freundlich was variable from 14-90. 5 in the Apple and Grape Biochar treated soil and was 95 in the untreated soils. The intensity adsorption (n) parameter of freundlich was variable from (0. 1-1. 5 ) in the Apple and Grape Biochar treated soil and 1. 25 in the untreated soil. The parameter of (kt) of temkin declined from 93 to 40 g. kg-1. Phosphorus adsorption parameters, qmax and Kl of Langmuir, n and Kf of Freundlich and Kt of Temkin declined in all treatments with the in incubation periods. The value of soil buffering indices including buffering capacity maximum (MBC), phosphorus buffering capacity (PBC), standard buffering capacity (SBC), equilibrium buffering capacity (EBC), and phosphorus standard requirement (SPR) declined in the Apple and Grape Biochar treated soil as Compared to the untreated soil. It can be generally concluded that use of Apple and Grape Biochar reduces the phosphorus adsorption zones in calcareous soils while increases the solution phosphoruse.

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APA: Copy

Rashidi, Negar, SAMADI, ABBAS, & NIKBAKHT, ALI MOHAMMAD. (2018). Effect of incubation period of different levels of apple and grape biochars on the adsorption behavior of phosphorus in a calcareous soil. APPLIED SOIL RESEARCH, 6(1 ), 98-111. SID. https://sid.ir/paper/261855/en

Vancouver: Copy

Rashidi Negar, SAMADI ABBAS, NIKBAKHT ALI MOHAMMAD. Effect of incubation period of different levels of apple and grape biochars on the adsorption behavior of phosphorus in a calcareous soil. APPLIED SOIL RESEARCH[Internet]. 2018;6(1 ):98-111. Available from: https://sid.ir/paper/261855/en

IEEE: Copy

Negar Rashidi, ABBAS SAMADI, and ALI MOHAMMAD NIKBAKHT, “Effect of incubation period of different levels of apple and grape biochars on the adsorption behavior of phosphorus in a calcareous soil,” APPLIED SOIL RESEARCH, vol. 6, no. 1 , pp. 98–111, 2018, [Online]. Available: https://sid.ir/paper/261855/en

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