By: D Whitehead
397 pages, Figs, tabs
Includes crop production, soils and fertilizers, ruminant consumption, and environmental aspects.
.".. a must for ecologists and plant and animal agriculturalists, managers, and advisors working in intensively managed sown pastures, particularly in many parts of Europe. It is a fine example of a blending of basic and applied research placed in a format understandable even to producers--one that I would consider handing to many western U.S. ranchers who are highly skeptical about why one would ever want to measure something like ammonia volatilization." --Ecology
Grasses - uptake of N and effects on morphology and physiology; clovers - biological N fixation and interaction with grasses; consumption, utilization and excretion of N by cattle and sheep; sources, amounts and fractionation of N in grassland soils; mineralization, immobilisation and availability of nitrogen in soils; leaching of nitrogen from soils; volatilisation of ammonia; denitrification; use of fertilizer and slurry nitrogen - recovery and response; response to fertilizer nitrogen - influence of sward type and harvesting procedure; response to fertilizer nitrogen - influence of weather and seasonal factors; response to fertiliser nitrogen - influence of type of fertiliser and supplies of other nutrients; influence of fertiliser nitrogen on composition and nutritional quality of grassland herbage; nitrogen balances in contrasting grassland systems; modelling nitrogen transformations in grassland.
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