Written in English
|Statement||by William C. Buttner and Peter J. Knaus|
|Contributions||Knaus, Peter J.|
|The Physical Object|
|Number of Pages||37|
to pounds of nitrogen can be gathered in a good crop of leguminous plants per acre. At the present time, however, this method of nitrogen fixation cannot be depended upon to supply our nitrogen demands. "While the natural manures are widely used as fertilizer, yet their availability is practically limited to this use. Additional Physical Format: Online version: Ernst, Frank A. (Frank Arthur), b. Fixation of atmospheric nitrogen. New York, D. Van Nostrand Co., [©]. Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia (NH 3) or related nitrogenous compounds in soil. Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few ical nitrogen fixation converts N 2 into ammonia, which is metabolized by most organisms. nitrogen cycle Nitrogen fixation is the process by which atmospheric nitrogen is converted by either a natural or an industrial means to a form of nitrogen such as ammonia. In nature, most nitrogen is harvested from the atmosphere by microorganisms to form ammonia, nitrites, and nitrates that can be .
In Nitrogen Fixation: Methods and Protocols, recognized experts in the field provide an up-to-date, in-depth overview of the methods that have been applied to studying the nitrogenase at a molecular level, ranging from genetic, biochemical, spectroscopic, and chemical methods to theoretical calculations. In addition, techniques used to study an. The thermal fixation of atmospheric nitrogen is explored, using a recently developed concept of a particle-seeded solar receiver. The thermodynamics and the kinetics of the formation of nitric oxide (NO) in air at temperatures of about K are analyzed, and the required residence time and the time to reach the steady state of the reaction between nitrogen and oxygen are calculated. The use of the genus Crotalaria, in particular C. juncea and C. spectabilis, as CCs has been recommended for warm and temperate regions .Some of the main attributes of these species are their rapid and high productivity of biomass (8 Mg ha −1) [6,7,8] and their high content of foliar nitrogen, obtained by biological nitrogen fixation (BNF) at an average of kg N ha −1 [9,10,11]. Although organic N has long been known to be a quantitatively significant component of atmospheric nitrogen deposition (reviewed in Neff et al., and Cornell et al., ), it is not routinely assessed, nor are best-estimates factored into quantitative evaluations of N fluxes. Here, the case for filling this knowledge gap is presented.
Nitrogen has the particulate matter of atmospheric air contains some water vapor which will begin to condense into liquid water in the Nitrogen gas system when the air or gas cools past the saturation point, i.e., the point where it can hold no more water vapor. The condensed moisture must be removed by a separator and trap. An effort is now being made by the writer to carry 1 Science, N. S., xxxiii, p. , 1 82 Nitrogen Fixation by Yeasts out some experiments on the fixation of nitrogen by fungi similar to those with which Duggar and Knudson worked and it is hoped that the results may be . can be used to test hypotheses. Modeling. Processes in the nitrogen cycle include nitrogen fixation and dentrification. What is atmospheric nitrogen fixation and how does it affect organisms? process of converting nitrogen gas into nitrogen compounds that plants can also absorb and use. The objective of this study was to investigate the interaction of the nitrogen (N) cycle with methane production in the Florida Everglades, a large freshwater wetland. This study provides an initial analysis of the distribution and expression of N-cycling genes in Water Conservation Area 2A (WCA-2A), a section of the marsh that underwent phosphorus (P) loading for many years due to runoff from.