scholarly journals The Identification of a Time Dependent Sorption Parameter from Soil Column Experiments

2006 ◽  
Vol 66 (4) ◽  
pp. 1407-1423 ◽  
Author(s):  
K. Renee Fister ◽  
Maeve L. McCarthy ◽  
Seth F. Oppenheimer
2008 ◽  
Vol 43 (8) ◽  
pp. 732-741 ◽  
Author(s):  
Zoi Magga ◽  
Dimitra N. Tzovolou ◽  
Maria A. Theodoropoulou ◽  
Theodora Dalkarani ◽  
Konstantinos Pikios ◽  
...  

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Kahina Aït Hammi ◽  
Elías Nieto-Latorre ◽  
María D. Ureña-Amate ◽  
María M. Socías-Viciana ◽  
Hafida Miloudi ◽  
...  

In this paper, the authors treat the impact of peat amendment on sorption and leaching of fungicides penconazole and flusilazole in two Algerian topsoil samples (Misserghine and Es-Senia). The batch equilibration technique was applied for adsorption experiments, and leaching was tested through soil column simulated experiments under laboratory conditions. Adsorption data fitted well to the Freundlich and linear models, showing the higher adsorption capacity of the Es-Senia soil for both fungicides, the order of sorption being flusilazole > penconazole. Organic amendments increased the adsorption of both fungicides especially for the soil with the lower organic matter (OM) content, obtaining a good correlation of this parameter withKf,thus implying that OM is the principal soil parameter governing fungicides adsorption. Results of soil column experiments indicated that peat amendment decreased leaching of both pesticides in the soils studied. So, the use of organic addition might be an effective management practice for controlling potential pollution of penconazole and/or flusilazole to the environment.


2010 ◽  
Vol 107 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Yoko S. Shimamoto ◽  
Takaaki Itai ◽  
Yoshio Takahashi

2014 ◽  
Vol 72 (7) ◽  
pp. 2607-2620 ◽  
Author(s):  
Kelsey E. O’Brien ◽  
Dave Risk ◽  
Daniel Rainham ◽  
Anne Marie O’Beirne-Ryan

2021 ◽  
Vol 34 ◽  
pp. 92-99
Author(s):  
Abdullahi Salisu ◽  
Aimrun Wayayok ◽  
Ahmad F. Abdallah ◽  
Rowshon Md. Kamal

Unlike other micro-irrigation facilities like a drip, trickle, and sprinklers that emits water at regularly spaced intervals with predefined discharges, porous rubber pipes (soaker hose) has openings of variable sizes that become unevenly spaced with uneven distribution. The latter makes discharge to be variant along its lateral. Shorter sections are used under laboratory column experiments of soil wetting pattern studies and for this reason, laboratory experiments were conducted to evaluate the extent of emission rates variability on short sections of commercial Irrigation Soaker Hose, 16 mm diameter. Three sections of 10 cm length pipes were randomly selected from 15 no's cuts from different parts of the twenty meters length pipe bundle and used to investigate the extent of variability on emission rates characteristics under six different operating pressures. The result was achieved by collecting and measuring water emitted through the pipe sections at pre-determined pressures. The various discharges, coefficient of variation, and pressure-discharge curves of the section of the pipe then determined from the data. The result shows somewhat similar trends on the increase for water collected with an increase in pressures; however, when statistically compared, the discharges among the pipe sections vary. The values of Coefficient of Variation (CV) are less than 10 % as the values CV range from 0.92 % to 5.82 %, which is within a good category, according to ASAE Standard EP405.1 of 0-10%. The findings indicate that, despite variations among the investigated sections, it can use any part as a representative unit in the soil column experiments with reasonable accuracy.


1995 ◽  
Vol 146 (1) ◽  
pp. 72-82
Author(s):  
Jürgen Hammer ◽  
Ruprecht Schleyer ◽  
Jürgen Fillibeck ◽  
Barbara Raffius

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