Date of this Version The excessive application of manure on
cropland areas can cause nutrients to accumulate near the soil
surface and increase nutrient transport by overland flow.
Inverting soils with high surface nutrient content could reduce
runoff nutrient transport. This study was conducted to measure
the effects of moldboard plowing on the redistribution of
nutrients within the soil profile and nutrient transport by
overland flow. Composted beef cattle manure was applied at dry
weights of 0, 68, 105, 142, and 178 Mg ha-1 to a silty clay loam
soil and then incorporated by disking. Selected plots were
moldboard plowed 244 days later to a depth of approximately 23
cm. Soil samples for analysis of water-soluble phosphorus, Bray
and Kurtz No.1 phosphorus (Bray-1 P), NO3-N, and NH4-N were
collected at depths of 0 - 5, 5 - 15, and 15 -30 cm before and
after moldboard plowing. Three 30-min simulated rainfall events,
separated by 24-hour intervals, were applied at an intensity of
approximately 70 mm hr-1. Dissol