1984
DOI: 10.1007/bf02206896
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Soil profile gravel concentration and its effect on rainfed crop yields

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Cited by 20 publications
(13 citation statements)
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“…Because fine mineral soils (particle sizes less than 2 mm) have distinctly different properties than gravel, gravel can have significant effects on soil nutrition supply capacity and vegetation growth (Poesen and Lavee, 1994). Many previous studies have focused on soil gravel content and their effect on soil nutrition and crop yields in agricultural systems (Babalola and Lal, 1977;Grewal et al, 1984;Ercoli et al, 2006;Koele et al, 2010;Rytter, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…Because fine mineral soils (particle sizes less than 2 mm) have distinctly different properties than gravel, gravel can have significant effects on soil nutrition supply capacity and vegetation growth (Poesen and Lavee, 1994). Many previous studies have focused on soil gravel content and their effect on soil nutrition and crop yields in agricultural systems (Babalola and Lal, 1977;Grewal et al, 1984;Ercoli et al, 2006;Koele et al, 2010;Rytter, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…The inverse relationships between the soil organic C stocks and the gravel content in field samples may be attributed to the loss of silt and clay during erosion (Lal, 1995;Rezai and Gilkes, 2005). The accumulation of gravel in the soil layer indirectly reflected the extent of loss of fine soil (Grewal et al, 1984;Lal, 1995). The magnitude of differences among three estimates was found to be the least in soils with low gravel content, and it increased with increase in gravel volume.…”
Section: Discussionmentioning
confidence: 96%
“…2b). This may be attributed to the fact that the fine-earth proportion reduces proportionately with the gravel volume (Nagaraja and Srinivasamurthy, 2009;Grewal et al, 1984). Thus, both the hypothetical and the field-sample-based estimations of soil organic C stocks remained the same in the order of Scenario 2 > Scenario 1 > Scenario 3.…”
Section: Discussionmentioning
confidence: 98%
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“…Some CFRAG studies have proposed that CFRAG is negatively correlated with maize yields [59]. According to Grewal's experiment with different levels of gravel content (18%, 28%, and 40%) as CFRAG, an increasing proportion of gravel led to decreasing soil nutrient content and soil water-holding capacity and a yield that showed a downward trend [60]. Driessen described the quantitative effect of CFRAG on a productivity index (decreasing from 100% to 0% with gravel contents of 10% to 70%), but the effect was due to the reduction of available plant water rather than rooting depth [61].…”
Section: Relationship Between Cfrag and Cropsmentioning
confidence: 99%