Nitrogen demand

Fowler, D.B. 2003. Crop nitrogen demand and grain protein concentration of spring and winter wheat. Agron J 95 260-265. 

Manginot, C., Roustan, J.L., Sablayrolles, J.M. (1998) Nitrogen demand of different yeast strains during alcoholic fermentation. Importance of stationary phase. Enr.. Micro. Technol, 23, 511-517. 

Torrea, D., Fraile, R, Garde, T, Ancin, C. (2003) Rroduction of volatile compounds in the fermentation of chardonnay musts inoculated with two strains of Saccharomyces cerevisiae with different nitrogen demands. Eood Control, 14, 565-571. 

Yamamuro et al. (1995) were the first to use a N-natural abundance approach in a coral reef environment, surveying various components of the ecosystem and concluded that much of the nitrogen demand on the reef is met by N2 fixation. 

Methane oxidation can be limited by nitrogen due to enzyme-level inhibition or unmet metha-notroph nitrogen demand. The oxidation of CH4 by methanotrophic bacteria and by... 

The demand for all three nutrients is expected to increase at 1.9% to 2.1%/year. A relatively higher growth for potash is a result of the impact of recovery in the reforming regions on potash use. Nitrogen demand is projected to increase from 73.6 million tonnes in 1994/ 95 to 88.9 miflion tonnes in 2004/05. Phosphate and potash demand is projected to increase from 29.7 and 20.0 million tonnes in 1994/95 to 36.4 and 24.6 million tonnes in 2004/05, respectively. Of the projected increase of 26.6 million nutrient tonnes in global fertilizer use, over half of the increase will be contributed by an increase in N demand, and about one-fourth by an increase in phosphate demand. Increased demand for potash will account for less than one-fifth of the projected increase. 

Nitrogen Demand - The developed markets are expected to increase their N demand by 1.6 million... 

The year 1994/95 provides a turning point in the history and future outlook of the fertilizer industry. Since 1988/89, global fertilizer use had been declining due to the drastic reduction in fertilizer use in the former centrally planned economies. The year 1994/95 is the first year after the fall of the Berlin wall in 1988 when global fertilizer use registered a 2% increase. During the 1994/ 95-2004/05 period, fertilizer demand is projected to increase by 2%/year - from 123 million nutrient tonnes in 1994/95 to 150 million nutrient tonnes in 2004/ 05. The demand for aD three nutrients is projected fo increase at 1.9% 2.1% per annum. Nitrogen demand is projected to increase from 74 miflion nutrient tonnes in 1994/95 to 89 million nutrient tonnes in 2004/05. Phosphate and potash demand is projected to increase... 

Most of the figures in current use are apparent values, but in feeding systems in which metabolic nitrogen loss is treated as part of the maintenance nitrogen demand, true rather than apparent coefficients have to be used. 

It must satisfy the nitrogen demands of the rumen microorganisms. 

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