By Donald L. Sparks (Eds.)
Advances in Agronomy is still famous as a number one reference and a primary resource for the newest examine in agronomy. As constantly, the themes lined are assorted and exemplary of the myriad of subject material handled through this long-running serial. * continues the top effect issue between serial guides in agriculture * offers well timed reports on vital agronomy matters * Enjoys a long-standing popularity for excellence within the box
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Extra info for Advances in Agronomy v106
Farmers learned how to control root diseases, mostly by growing break crops and removing grasses during the pasture phase because they were hosts to pathogens. They then had the confidence to aim for and achieve high yields by increasing their inputs, especially nitrogen. Many farmers are now achieving yields close to the upper bound (Angus, 2001). 3. Water as a Limiting Resource: An Analytical and Diagnostic Framework Figure 1 illustrates both the water-limited potential yield and the losses of water by processes other than transpiration (mostly direct evaporation from the soil).
Potential for transfer to surface waters will depend upon its hydrological connectivity, and potential pathways as described above. 4. , 2009a), further work is needed to establish the significance of the release and loss of P from the soil microbial biomass more widely. This may be possible by investigation of specific forms of P in leachate following abiotic stress. For example, Turner et al. (2003b) speculate that if recently lysed cells are contributing significant amounts of P in leachate then this could be reflected by the quantities of partially degraded nucleic acids or phospholipids (labile orthophosphate diesters) present.
And McComb, A. J. (1995). Planktonic and microbial contributions to phosphorus release from fresh and air-dried sediments. Mar. Freshw. Res. 46, 1039–1045. , McComb, A. , Bell, R. , and Davis, J. A. (2004). Phosphorus dynamics from vegetated catchment to lakebed during seasonal refilling. Wetlands 24, 828–836. Reed, R. , and Stewart, W. D. P. (1983). Physiological responses of Rivularia atra to salinity: Osmotic adjustment in hyposaline media. New Phytol. 95, 595–603. Reed, R. , Warr, S. R. , Kerby, N.
Advances in Agronomy v106 by Donald L. Sparks (Eds.)