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The topsoil C stock was shown to be a poor predictor of subsoil C stock, due partly to the land-cover induced differences in C stock between the topsoils and subsoils (Young et al.
In the present study, the influence of structure was less pronounced when the entire soils were considered irrespective of sampling depth than when considered separately for the topsoils and subsoils, despite a reduced number of observations in the latter approach.
By the end of the day, Dandy's Topsoil in Sealand, Flintshire, had only 2,880 tonnes left.
The desire to save topsoil and place it in the area where it will benefit plants adds complexity to the cut and fill process.
Both Himatangi and Kiripaka topsoils have a pH <6.5, yet more than 25% of the initial [sup.14]C-atrazine incubated with the field soils collected on more than one sampling occasion was mineralised in vitro.
ABSTRACT: Topsoil loss by soil erosion frequently results in crop productivity decline.
It topsoil erosion continues at post-World War II rates, feeding an exploding world population could prove extremely difficult, he says.
Differences in airborne and ground-based estimates of eTh for the more clayey topsoils (YG, LK, MA) are likely to have been caused by differences in topsoil moisture content at the times of measurement.
Among many soil properties, topsoil thickness has been identified as a major indicator of soil quality and productivity (25).
In contrast, topsoil incorporated amendments did not influence root penetration into the acidic subsurface of the Kaawa soil, which is dominated by permanently charged clay minerals.
Statistical significance (P values, significant values in bold) of the treatment effects on the measured chemical parameters and easily dispersible, moderately dispersible, difficult to disperse, and non-dispersible clay contents (EDC, MDC, DDC, and NDC, respectively) in the topsoils
The fastest no-dig way to get a framed instant bed ready to roll is to fill it with good quality topsoil mixed with compost (see "Bags or Bulk?," below).
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