1. Cereal Rye Cover Crops Mitigate Soil Phosphorus Stratification from Long-term No-tillage

Minimal or no-tillage is a widely adopted soil conservation practice and has been documented to reduce soil erosion, increase soil organic matter, and even reduce nutrient losses. Without tillage cultivation, however, phosphorus (P) can become stratified in surface soil layers and this may limit availability to crops or even increase bioavailable-P losses. Our primary objective was to measure the long-term (12-year) effects of long-term no-tillage (NT), cereal rye cover crops (CC), and their interaction... R.W. Barker, M.J. Helmers, M.D. Mcdaniel