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Bruises on southwestern feedlot cattle
Summaries and provides statistics from a survey on 1523 head of 454kg. fed feedlot cattle for discountable bruises in a large southwestern slaughter plant.
Use of tracers and computer simulation techniques to assess mineralization and immobilization of soil nitrogen
Contributor:Paul, Eldor A.; Juma, N. G.
The objectives of this investigation were to develop and test concepts of microbial growtth and decay in soil and to study the mineralization and inmobilization of soil N using tracer and computer simulation techniques.
Organic C dynamics in grassland soils. 2. Model validation and simulation of the long-term effects of cultivation and rainfall erosion
Contributor:Paul, E. A.; Voroney, R. P.; Van Veen, J. A.
The amounts of organic matter in native prairie and in an adjacent cultivated field were compared with the output from a simulation model describing organic matter dynamics. The effects of past and possible future soil ...
Organic carbon dynamics in grassland soils. 1. Background information and computer simulation
Contributor:Paul, E. A.; Van Veen, J. A.
The decomposition rates of 14C-labelled plant residues in different parts of the world were characterized and mathematically simulated. The easily decomposable materials, cellulose and hemicellulose, were described as being ...
Effect of labile inorganic phosphate status and organic carbon additions on the microbial uptake of phosphorus in soils
Contributor:Chauhan, B. S.; Stewart, J. W. B.; Paul, E. A.
The effect of labile inorganic phosphate (Pi) status of the soil on the decomposition of added cellulose and on the immobilization, mineralization, and redistribution of native and added P in soils was studied in a greenhouse ...