Extent of soil water repellency under long-term no-till soils

Geoderma ◽  
2009 ◽  
Vol 149 (1-2) ◽  
pp. 171-180 ◽  
Author(s):  
Humberto Blanco-Canqui ◽  
R. Lal
Keyword(s):  
Soil Water ◽  
Water Repellency ◽  
Soil Water Repellency ◽  
No Till

Influence of crop residues and nitrogen fertilizer on soil water repellency and soil hydrophobicity under long-term no-till

2019 ◽  
Vol 99 (3) ◽  
pp. 334-344 ◽  
Author(s):  
J.J. Miller ◽  
M.L. Owen ◽  
B.H. Ellert ◽  
X.M. Yang ◽  
C.F. Drury ◽  
...  
Keyword(s):  
Soil Water ◽  
Crop Residues ◽  
Water Repellency ◽  
N Fertilizer ◽  
Soil Water Repellency ◽  
Index Method ◽  
Organic C ◽  
No Till ◽  
Soil Hydrophobicity

Crop residues and N fertilizer under no-till may increase soil water repellency (SWR) and soil hydrophobicity, but few studies have examined these two treatment factors and their interaction. A laboratory study was conducted using a long-term (since 1999) field experiment on a clay loam soil to determine the effect of three crop residues and two N fertilizer levels on SWR and soil hydrophobicity under no-till within the Dark Brown soil zone of the semi-arid Canadian prairies. The three residue treatments were residues removed from soil (Rx0), residues returned to soil (Rx1), and residues supplemented to soil (Rx2). The two fertilizer N treatments were 0 (N0) and 45 kg N ha−1 (N1). Surface (0–10 cm) soil samples were taken in the spring of 2017 after 17 yr. Laboratory measurements were conducted on air-dried and sieved (<2 mm) soil to determine SWR using the repellency index method (RI), soil organic C, hydrophobic CH and hydrophilic CO functional groups, and soil hydrophobicity (CH/CO ratio). Mean RI values ranged from 2.19 to 2.75, indicating subcritical (RI > 1.95) SWR. Similar (P > 0.05) RI values were found for the three residue and two N fertilizer treatments, but the trend was for greater RI with increased residue addition (by 12%–26%) and N fertilizer (by 8%). Soil hydrophobicity was significantly greater by 47%–82% for straw returned or supplemented than straw removed treatments, and by 33% for fertilized than unfertilized treatments. Overall, greater residues and N fertilizer had no effect on SWR, but significantly increased soil hydrophobicity.

Long-term cropping and fertilization influences soil organic carbon, soil water repellency, and soil hydrophobicity

2020 ◽  
Vol 100 (3) ◽  
pp. 234-244
Author(s):  
J.J. Miller ◽  
M.L. Owen ◽  
X.M. Yang ◽  
C.F. Drury ◽  
W.D. Reynolds ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Water ◽  
Perennial Grass ◽  
Water Repellency ◽  
Kentucky Bluegrass ◽  
Soil Water Repellency ◽  
Loam Soil ◽  
Soil Hydrophobicity

Long-term (58 yr) cropping and fertilization effects on soil water repellency were determined for a clay loam soil in southwestern Ontario, Canada by measuring soil organic carbon (SOC), soil water repellency index (RI), and soil hydrophobicity (SH). The 12 treatments (non-replicated) included fertilized and non-fertilized legume-based crop rotation (ROT) with four phases (corn–oat–alfalfa–alfalfa), continuous corn (CC), and continuous Kentucky bluegrass (KBG). We hypothesized that SOC, RI, and SH would be greater for each phase of the ROT versus CC, KBG versus CC and ROT, and fertilized versus non-fertilized treatments. Surface (0–10 cm) soil samples were collected in the spring of 2017. Laboratory measurements were conducted to determine SOC, RI (ratio of soil sorptivity to ethanol and water), and SH (ratio of hydrophobic CH– to hydrophilic CO– functional groups). Mean SOC and SH were greater (P ≤ 0.05) for each phase of the ROT versus CC (33% to 2.4 times), KBG versus CC (3.2–6 times) and each phase of ROT (2.2–2.8 times), and fertilized versus non-fertilized rotation oats and KBG (15%–30%). Mean RI was greater for KBG versus CC (4.8 times) and KBG versus each phase of the ROT (3.0–5.5 times) under fertilization only, greater for fertilized versus non-fertilized KBG (6.8 times), but similar for each phase of ROT versus CC. In general, legume-based rotations, perennial grass, and fertilizer enhanced SOC and SH, and to a lesser extent soil RI.

Comparison of various techniques to estimate the extent and persistence of soil water repellency

Biologia ◽  
2017 ◽  
Vol 72 (9) ◽  
Author(s):  
L’ubomír Lichner ◽  
Marek Rodný ◽  
Bernd Marschner ◽  
Yona Chen ◽  
Itamar Nadav ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Repellency ◽  
Treated Wastewater ◽  
Soil Water Repellency ◽  
New Techniques

AbstractNew techniques to estimate the extent and persistence of soil water repellency (SWR) were compared with commonly used techniques in assessing the results taken in the long-term agricultural experimental orchards in northern Israel irrigated with either freshwater (FW), primary treated wastewater (WW) or (secondary or tertiary) treated wastewater (TWW), where SWR induced by irrigation was registered (Ha Ma’apil, Neve Etan, and Shafdan). The extent of SWR was assessed by the repellency index RI, combined repellency index RI

Influence of Crested Wheatgrass on Soil Water Repellency in Comparison to Native Grass Mix and Annual Spring Wheat Cropping

2021 ◽  
Author(s):  
Jim J. Miller ◽  
Mallory Owen ◽  
Ben Ellert ◽  
X.M. Yang ◽  
Craig F. Drury ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Repellency ◽  
Perennial Grasses ◽  
Strong Positive Correlation ◽  
Long Term Effects ◽  
Soil Water Repellency ◽  
Native Grass ◽  
Canadian Prairies ◽  
Crested Wheatgrass

Crested wheatgrass (Agropyron cristatum (L.) Gaertn.) is a common introduced grass in the Canadian prairies, but concerns remain about its possible long-term effects on soil quality, and its influence on soil water repellency (SWR) has not been determined. The long-term (24 yr) effects of crested wheatgrass on soil water repellency (SWR) in comparison to seeded native grasses and annual cropping were determined for a clay loam soil in southern Alberta, Canada by measuring SOC concentration and SWR using soil hydrophobicity (SH) and soil water repellency index (RI) methods. The cropping treatments were crested wheat grass, seeded native grass mix, continuous wheat, and wheat-fallow rotation, each with fertilized (nitrogen) and non-fertilized sub-plots, replicated four times. Mean SOC concentration, SH, and RI in samples of surface soil were similar (P > 0.05) for crested wheatgrass and seeded native grass mix; and did not support our hypothesis (seeded native grass mix>crested wheatgrass). Mean SOC was significantly greater for seeded perennial grasses than annual crops by 1.7 to 2 times and SH by 2.1-2.5 times, which supported our hypothesis, but RI was similar among treatments. As expected, nitrogen fertilization significantly increased SOC concentrations, but the effects on SH and RI were undetectable. A strong positive correlation occurred between SOC concentration and SH (r=0.92), but not for RI (r=0.10). Our findings suggested that SWR was similar for crested wheatgrasses and seeded native grass mix. The SWR as measured using SH was greater for seeded perennial grasses than annual cropping, but was similar using RI.

Soil water repellency in sandy soil depends on the soil drying method, incubation temperature and specific surface area

Geoderma ◽  
2021 ◽  
Vol 402 ◽  
pp. 115264
Author(s):  
Enoch V.S. Wong ◽  
Philip R. Ward ◽  
Daniel V. Murphy ◽  
Matthias Leopold ◽  
Louise Barton
Keyword(s):  
Specific Surface ◽  
Soil Water ◽  
Surface Area ◽  
Specific Surface Area ◽  
Sandy Soil ◽  
Incubation Temperature ◽  
Water Repellency ◽  
Soil Drying ◽  
Drying Method ◽  
Soil Water Repellency

The use of visible and near-infrared spectroscopy for the analysis of soil water repellency

2014 ◽  
Vol 65 (3) ◽  
pp. 360-368 ◽  
Author(s):  
I. Kim ◽  
R. R. Pullanagari ◽  
M. Deurer ◽  
R. Singh ◽  
K. Y. Huh ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Soil Water ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Water Repellency ◽  
Soil Water Repellency
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