Proceedings :: North Central Soil Fertility Conference

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Kravchenko, A.N

Potter, D.K

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Authors

Daverede, I.C

Kravchenko, A.N

Hoeft, R.G

Nafziger, E.D

Bullock, D.G

Warren, J.J

Gonzini, L.C

M Washburn, C.S

Motavalli, P.P

Kitchen, N.R

Potter, D.K

Topics

Type

Oral

Year

2002

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Filter results2 paper(s) found.
1. Phosphorus Runoff From Incorporated and Surface-Applied Fertilizer and Manure Continued inputs of fertiher and manure in excess of crop requirements have led to a build-up of soil phosphorus (I?) levels, creating an environmental rather than agronomic concern (Sharpley et al., 1994). The objective of this study was to evaluate the effects of soil test P level, source of P amendments, tillage, and manure application method on P runoff from agricultural soils. The treatments consisted of swine manure surface applied and injected at rates of 29 and 59 Ib acre-' of P, and triple... Download paper
2. Soil Phosphorus Spatial Distribution in Pastures Receiving Poultry Litter Applications Environmentally-based P management strategies could be improved by debeating management zones incorporating the effects of landscape position on soil morphology, hydrology, and soil P distribution. Three farm pasture sites in SW Missouri receiving long-term poultry litter applications were sampled by landscape position (summit, shoulder, upper backslope. middle backslope, lower backslope, footslope, drain) for soil P (Bray 1 P, CaCl2 P, total P) at two depths (0-5 cm, 5- 15 cm). Low landscape positions... Download paper

Filter results2 paper(s) found.

1. Phosphorus Runoff From Incorporated and Surface-Applied Fertilizer and Manure

Continued inputs of fertiher and manure in excess of crop requirements have led to a build-up of soil phosphorus (I?) levels, creating an environmental rather than agronomic concern (Sharpley et al., 1994). The objective of this study was to evaluate the effects of soil test P level, source of P amendments, tillage, and manure application method on P runoff from agricultural soils. The treatments consisted of swine manure surface applied and injected at rates of 29 and 59 Ib acre-' of P, and triple...

Download paper

2. Soil Phosphorus Spatial Distribution in Pastures Receiving Poultry Litter Applications

Environmentally-based P management strategies could be improved by debeating management zones incorporating the effects of landscape position on soil morphology, hydrology, and soil P distribution. Three farm pasture sites in SW Missouri receiving long-term poultry litter applications were sampled by landscape position (summit, shoulder, upper backslope. middle backslope, lower backslope, footslope, drain) for soil P (Bray 1 P, CaCl2 P, total P) at two depths (0-5 cm, 5- 15 cm). Low landscape positions...

Download paper