Experimental and mathematical modeling of water regime and nitrate dynamics on zero tension plate lysimeters in soil influenced by high groundwater table

Filipović, Vilim; Kodešová, Radka; Petošić, Dragutin

doi:10.1007/s10705-012-9546-5

Cited by 14 publications

(11 citation statements)

References 21 publications

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“…High rates of irrigation over summer resulted in a considerable volume of rainfall and irrigation being collected beneath the A1 horizon in both treatments (control, 511 mm yr −1 ± SD 523; biochar, 798 mm yr −1 ± SD 668). Although high, these drainage rates are similar to those reported by Filipović et al (2013), who estimated the annual drainage from an apple orchard in New Zealand was approximately 700 mm yr −1 . In this study, nutrient leaching below the A1 horizon was strongly influenced by differences in the volume of leachate collected in the two adjacent treatments.…”

Section: Discussionsupporting

confidence: 87%

Section: Horticultural and Environmental Implicationssupporting

confidence: 84%

“…Values of nitrate leaching from the Huon Valley site are in keeping with similar studies in apple production systems (Stevenson and Neilsen, 1990;Toselli et al, 2011;Filipović et al, 2013;Ventura et al, 2013). Filipović et al (2013), for example, reported that seasonal nitrate leaching from an apple orchard near Whakatu in New Zealand was approximately 17 kg N ha -1 . Stevenson and Neilsen (1990) found that nitrate concentration from the base of 1.5-m-deep lysimeters in a 'Macspur McIntosh' apple orchard averaged 211 to 439 mg L -1 nitrate, or 42 to 271 kg ha -1 yr -1 nitrate, which equates to loss of between 39 to 43% of the applied nitrogen fertilizer.…”

Section: Horticultural and Environmental Implicationssupporting

confidence: 84%

“…Three Tranzflo passive‐wick flux meters (Gee et al, 2004; Green et al, 2012; Filipović et al, 2013) were installed in each of two adjacent biochar and control plots to measure nutrient leaching from the base of the A1 horizon. The flux meters were installed approximately 50 cm apart within each treatment.…”

Section: Methodsmentioning

confidence: 99%

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Effect of Biochar on Nutrient Leaching in a Young Apple Orchard

et al. 2015

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Nutrient leaching from agricultural soils is a worldwide problem that has been implicated in deleterious impacts on the environment. Application of biochar to soil has been proposed as a means to reduce nutrient leaching and improve fertilizer use efficiency. The potential for biochar to reduce nutrient leaching and increase fertilizer use efficiency was tested by applying 47 Mg ha hardwood biochar before replanting a commercial apple () orchard, in the Huon Valley, Tasmania. Passive wick flux meters were installed at the base of the A1 horizon at a depth of 25 cm to monitor leachate volume and the concentration of nutrients leached below the A1 soil horizon over a 38 mo period. Biochar application significantly increased the concentration of phosphorous in the leachate, while having no significant effect on nitrate or potassium concentration. The volume of leachate collected in the flux meters was significantly higher in the biochar treatment, which resulted in significantly higher amounts of potassium and phosphorous being leaching from the biochar treatment than the control. Biochar application had no significant effect on either the concentration or the flux of nitrate leached from the A1 horizon. Nonetheless, nutrient application was well in excess of tree requirements, such that between 53 to 78% of the applied nitrogen, 5 to 11% of the applied phosphate, and 69 to 112% of the applied potassium were leached below the A1 horizon.

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Section: Discussionsupporting

confidence: 87%

Section: Horticultural and Environmental Implicationssupporting

confidence: 84%

Section: Horticultural and Environmental Implicationssupporting

confidence: 84%

Section: Methodsmentioning

confidence: 99%

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Effect of Biochar on Nutrient Leaching in a Young Apple Orchard

et al. 2015

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“…Depending on the specific hydropedological microlocations, excessive subsurface water may occur at depth, saturating a part of the soil profile temporarily or permanently (Filipovic et al, 2013).…”

Section: Improving Crop Production In Irrigated Agriculturementioning

confidence: 99%