Tillage and Simulated Rainfall Intensity Effect on Bromide Movement in an Argiudoll

Autor: Bicki, Thomas J., Guo, Lei
Zdroj: Soil Science Society of America Journal; May 1991, Vol. 55 Issue: 3 p794-799, 6p
Abstrakt: Movement of Br‐in a Flanagan silt loam (fine, montmorillonitic, mesic Aquic Argiudoll) managed under five different tillage systems and subjected to three simulated rainfall intensities was documented. Under low (10 mm/h) and medium (25 mm/h) simulated rainfall intensities, movement of Br‐in the soil profile was not significantly different between moldboard plow, chisel plow, disk plow, para‐till, and no‐till systems. When subjected to a high simulated rainfall intensity, significantly greater Br‐movement occurred in the soil profile managed under continuous, long‐term no‐till. Greater movement of Br‐in the no‐till soil was attributed to preferential flow.
Databáze: Supplemental Index