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- Cochrane, B.H.W.; Reichert, J.M.; Eltz, F.L.F.; Norton, L.D.
- Transactions of the ASAE 2005 v.48 no.1 pp. 149
- agricultural runoff, etc ; water erosion; erosion control; polyacrylamide; phosphogypsum; soil amendments; infiltration (hydrology); soil surface sealing; tropical soils; soil crusts; sandy soils; Alfisols; rain; rainfall simulation; Brazil; Show all 15 Subjects
- ... Sandy soil, prone to intense soil erosion, is used for agriculture in the subtropics of Brazil. This study was conducted to determine whether soil amendments are effective for conserving topsoil by preventing water-induced erosion on a Brazilian sandy Alfisol soil (coarse-loamy, mixed, thermic Typic Paleudalf). A programmable rainfall simulator was used at the experimental station of the Federal U ...
- Duiker, S.W.; Flanagan, D.C.; Lal, R.
- Catena 2001 v.45 no.2 pp. 103
- runoff, etc ; erodibility; infiltration (hydrology); Alfisols; Inceptisols; Fluvents; Vertisols; terrace soils; alluvial soils; clay soils; interrill erosion; equations; Water Erosion Prediction Project; rainfall simulation; Spain; Mediterranean region; Show all 16 Subjects
- ... Equations used to calculate erodibility in the Water Erosion Prediction Project soil erosion model (WEPP) are based on erodibility studies in the USA and may not function well in another region. This study was conducted to: (i) analyze erodibility and infiltration characteristics of some predominant soils of southern Spain, and (ii) test equations used to calculate interrill erodibility in the WEP ...
- Sharpley, A.N.
- Soil Science Society of America journal 1996 v.60 no.5 pp. 1459
- runoff, etc ; animal manures; Ultisols; Alfisols; pig manure; poultry manure; cattle; land application; soil fertility; phosphorus; nutrient availability; residual effects; extraction; iron oxides; losses from soil; eutrophication; environmental protection; optimization; water quality; pollution control; fertilizer requirements; Show all 21 Subjects
- ... In many areas with confined animal operations, continual manure application has increased soil P above amounts sufficient for optimum crop yields. In these areas, it is of economic and environmental importance to determine how long high-P soils will remain above crop sufficiency and identify soils where P contents would decrease most rapidly under similar management conditions. Thus, the surface 5 ...