Effects of three different biochars amendment on water retention of silty loam and loamy soils

Günal, Elif; Erdem, Halil; Çeli̇k, İsmai̇l

doi:10.1016/j.agwat.2018.06.004

Cited by 58 publications

(22 citation statements)

References 44 publications

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“…In agreement with the current findings, BC produced at 500 • C increased sandy soil water retention and the increase was more evident with time of incubation, attributed to a change of BC surfaces from hydrophobic to hydrophilic [56]. Similarly, clay soil amended with BC produced at 400 • C retained less water immediately after application, but after a 180-day incubation, its effect on water retention was comparable to those produced at 600 or 800 • C [66]. BC addition was also found to increase available water content in sandy loam and loamy soils in the first growing season, and this impact continued to increase in the second growing season, highlighting the importance of BC aging in soil [67].…”

Section: Effect Of Date Palm Residue Biochar Addition On Water Retentionsupporting

confidence: 90%

Addition of Biochar to a Sandy Desert Soil: Effect on Crop Growth, Water Retention and Selected Properties

Alotaibi

Schoenau

2019

Agronomy

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Agricultural and environmental applications of biochar (BC) to soils have received increasing attention as a possible means of improving productivity and sustainability. Most previous studies have focused on tropical soils and more recently temperate soils. However, benefits of BC addition to desert soils where many productivity constraints exist, especially water limitations, have not been widely explored. Thus, three experiments were designed using a desert soil from Saudi Arabia to address three objectives: (1) to evaluate the effect of BCs produced from date palm residues added at 8 t ha −1 on wheat growth, (2) to determine the effect of BC addition and BC aging in soil on water retention, and (3) to reveal the effect of BC on selected soil physical (bulk density, BD; total porosity; TP) and chemical (pH; electrical conductivity, EC; organic matter, OM; cation exchange capacity, CEC) properties. The feedstock (FS) of date palm residues were pyrolyzed at 300, 400, 500, and 600 • C, referred to here as BC300, BC400, BC500, and BC600, respectively. The BC products produced at low temperatures were the most effective in promoting wheat growth when applied with the NPK fertilizer and in enhancing soil water retention, particularly with aging in soil, whereas high -temperature BCs better improved the selected soil physical properties. The low-temperature BCs increased the yield approximately by 19% and improved water retention by 46% when averaged across the incubation period. Higher water retention observed with low-temperature BCs can be related to an increased amount of oxygen-containing functional groups in the low-temperature BCs, rendering BC surfaces less hydrophobic. Only the BC300 treatment showed a consistent positive impact on pH, OM, and CEC. Pyrolysis temperature of date palm residue along with aging are key factors in determining the potential benefit of BC derived from date palm residues added to sandy desert soil.crop yield is largely dependent on BC production temperature and the feedstock (FS) [5][6][7]. In a recent review, it was reported that the fertilizing value of BC and its nutrient availability, especially N and P, decrease with increasing pyrolysis temperature [5]. Therefore, the effect of BC on crop yield and plant nutrition was found to be variable, and its use as a sole amendment was not always effective, having its supplementation with mineral fertilizers sometimes necessary to promote crop growth [8][9][10][11][12][13][14][15][16]. Some studies found BC to be the most effective when it is applied with mineral fertilizers [8,14,[17][18][19]. Therefore, positive impact of BC on soil fertility and crop yield is not always certain, and it highly depends on FS, BC production temperature, and most importantly soil type [3,[5][6][7]20].BC benefits to soil also include improvement of soil physical properties. For instance, soil bulk density (BD) and porosity was found to be improved after BC application [20][21][22][23][24][25][26]. BC was also reported to increase the soil ability to retain ...

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Section: Effect Of Date Palm Residue Biochar Addition On Water Retentionsupporting

confidence: 90%

Addition of Biochar to a Sandy Desert Soil: Effect on Crop Growth, Water Retention and Selected Properties

Alotaibi

Schoenau

2019

Agronomy

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“…Maturation involves surface oxidation [49,50], sorption of soil organic matter rich in oxygen-containing groups [51,52] and increase its surface area while decreasing the pore diameter, relative to fresh biochar [53]. Another possible cause for the different performances of the New vs. Old plots might be related to the initial water repellency characteristics of biochar [54,55], which change with aging [56,57]. For the tested soil, biochar contact to organic acids and other chemical soil components could have caused the aging and decreasing of the hydrophobicity, as reported by previous studies at similar soils [56].…”

Section: Measured Swc and Transformationmentioning

confidence: 99%

Effect of Biochar Application Rates on the Hydraulic Properties of an Agricultural-Use Boreal Podzol

et al. 2019

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Boreal agriculture struggles with soils of lower agronomic value, most of which are sandy with a low water holding capacity (WHC) and prone to nutrient leaching. Biochar amendments are associated with positive effects on soil hydraulic properties and enhanced nutrient retention. However, these effects are strongly related to feedstock type and pyrolysis parameters and depend on biochar application rates and soil types. While biochar could increase the productivity of boreal agriculture by improving water and nutrient use efficiency, little is known about its effects on hydraulic processes in podzol. In this study, we investigated the effects of biochar rates (10, 20, 40, 80 Mg carbon ha−1) and maturity on soil hydrology for an agriculturally used Podzol in Labrador, Canada. The in-situ soil water content (SWC) and weather data over an entire growing season were analysed. Hydrus 1D simulations were used to estimate changes in water fluxes. SWC showed clear differentiation among storage parameters (i.e., initial, peak and final SWC) and kinetic parameters (i.e., rate of SWC change). Storage parameters and soil wetting and drying rates were significantly affected by biochar rates and its maturity. The magnitude of the changes in SWC after either wetting or drying events was statistically not affected by the biochar rate. This confirms that biochar mostly affected the WHC. Nevertheless, reductions in cumulative lower boundary fluxes were directly related to biochar incorporation rates. Overall, biochar had positive effects on hydrological properties. The biochar rate of 40 Mg C ha−1 was the most beneficial to agriculturally relevant hydraulic conditions for the tested Podzol.

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“…Water scarcity has become one of the ambient factor affecting land sustainability, especially in the Mediterranean region Zehnder, 2002 andIglesias et al, 2007). Amending such arid soils with biochar can probably retain soil moisture (Fischer et al, 2019 andGünal et al, 2018); accordingly, biochar improves water use efficiencies (Fischer et al, 2019). Moreover, available soil moisture can determine the stabilization of SOM and its potentiality probably exceeds the effect of clay particles (Rasmussen et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Role of biochar in managing the irrigation water requirements of maize plants: the pyramid model signifying the soil hydro-physical and environmental markers

Bassouny

Abbas

2019

Egypt.J. Soil Sci.

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Effects of three different biochars amendment on water retention of silty loam and loamy soils

Cited by 58 publications

References 44 publications

Addition of Biochar to a Sandy Desert Soil: Effect on Crop Growth, Water Retention and Selected Properties

Addition of Biochar to a Sandy Desert Soil: Effect on Crop Growth, Water Retention and Selected Properties

Effect of Biochar Application Rates on the Hydraulic Properties of an Agricultural-Use Boreal Podzol

Role of biochar in managing the irrigation water requirements of maize plants: the pyramid model signifying the soil hydro-physical and environmental markers

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