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1. N Mineralization Dynamics in No-till Crop Residues in the Northern PlainsAlthough many studies have been conducted on no-till cropping systems, little is yet known about the dynamics of N mineralization from accumulated crop residues as it relates to providing N to subsequent crops. We conducted incubation studies using individual crop residues placed on the surface of soil columns in leaching tubes and incubating the tubes for approximately 12 weeks (simulated growing season) with periodic leaching. This was repeated 5 times with a freezing period (winter... L. Cihacek, R. Alghamdi |
2. Effect of Rate and Timing of Nitrogen Applications on Forage Sorghum Biomass YieldForage Sorghum (Sorghum-Sudan grass) is a forage crop harvested in the form of silage or dry-hay and is intended to distribute to livestock as feed. The research objective for this study is to observe how nitrogen timing plays a role in crop total biomass yield. Observations and data were collected during the 2021 growing season, with a total of two harvests allowed due to weather conditions in the area. This trial was conducted at two locations: Lake Carl Blackwell near Stillwater, Oklahoma and... B. Arnall, S. Sawatzky, S. Akin, M. Thomas, R. Singh, W.R. Raun |