Browsing by Subject "Nitrogen"
Now showing items 1-20 of 32
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Amending constructed roadside and urban soils with large volume-based compost applications: effects on water quality
(Texas A&M University, 2007-04-25)Mineral nutrients imported in composted dairy manure (CDM) and municipal biosolid (CMB) amendments for highway-rights-of-way and urban landscapes can pose a threat to surface water quality. Treatments were developed to ... -
Biochemical, physiological and ecological aspects of ammonium regeneration by marine crustaceans
(Texas A&M University. Libraries, 1981)Laboratory investigations were carried out with the marine mysid, Praunus flexuosus, to assess the degree of coupling between glutamate dehydrogenase (EC 1.4.1.3; GDH) activity and the rate of whole animal ammonium excretion. ... -
Chemical fixation of dinitrogen under mild conditions
(Texas A&M University. Libraries, 1978)Chemical fixation of dinitrogen has been performed under mild conditions in homogeneous and heterogeneous systems. In heterogeneous system electron donor-acceptor complexes of iron phthalocyanine, ruthenium phthalocyanine, ... -
Circulating Fluidized Bed Boiler Model for Predicting Emission Levels of Tire Fuel using Base Case of Lignite Fuel
(2015-08-05)Government regulations on emission standards and constantly fluctuating fuel availability and prices have led to the need of more readily usable and available models for power generating combustors. A common, versatile, ... -
Coastal and Marine Nitrogen Sources Shift Isotopic Baselines in Pelagic Food Webs of the Gulf of Mexico
(2012-07-16)Upwelling, atmospheric nitrogen (N2) fixation by cyanobacteria, and freshwater inputs from the Mississippi River system have been shown to stimulate new production by alleviating nitrogen (N) limitation in the northern ... -
Cowpea as a Multifunctional Legume in a Texas Double Cropping System
(2017-02-22)Cropping systems involving legumes are increasing due to the costs and environmental concerns attributed to N fertilizer. A green manure cover crop in a cropping system can benefit the soil by improving fertility and ... -
Daily Light Integral Requirements for Zoysiagrass and Bermudagrass Cultivars: Fertility, Mowing Height, and Growth Regulator Interactions
(2017-07-14)Growing quality turf in shade is a significant management concern for many turf managers. Proper turfgrass selection for shaded environments can be challenging due to difficulty in quantifying necessary light levels ... -
Design and Integration Analysis of Cryogenic Air Separation Unit
(2019-03-27)Industrial Gas market is expected to grow to $106 billion from $76 billion by 2022 parallel to the global energy and chemical production sector growth. Air separation is one of the major technologies utilized within this ... -
Dinitrogen fixation (acetylene reduction) associated with forage grasses in Texas : enumeration, characterization and inoculation studies of bacterial isolates
(Texas A&M University. Libraries, 1980)The most generally limiting nutrient to growth of forage grasses is fixed nitrogen in the form of No3- or NH4+. Dinitrogen fixation by bacteria associated with forage grass roots in a system which would provide plants with ... -
Effect of Nitrogen Fertilization and Forage Maturity on the Nutritive Value of Bahiagrass
(2012-07-11)Bahiagrass (paspalum notatum), a forage resource in the southern United States, often has lower forage quality than other forages, but may require fewer nutrient inputs. Our objectives were to determine the effects of N ... -
The effect of nitrogen fixation on the protein quality of southernpeas, Vigna unguiculata (Cowpeas)
(Texas A&M University. Libraries, 1981)The effects of nitrogen fixation on protein quality of southernpeas were studied. Differences in levels of nitrogen fixation were induced through variety selection and inoculation with Rhizobium bacteria. Growing seasons ... -
Effect of variation in freshwater inflow on phytoplankton productivity and community composition in galveston bay, texas
(2009-05-15)Freshwater inflows are essential to the health of estuaries and minimum discharge levels must be maintained in order to sustain a healthy ecosystem. Due to the predicted 50% increase in urban population growth along the ... -
Effects of Biochar Recycling on Switchgrass Growth and Soil and Water Quality in Bioenergy Production Systems
(2012-07-16)Intensive biomass production in emerging bioenergy systems could increase nonpoint-source sediment and nutrient losses and impair surface and groundwater quality. Recycling biochar, a charcoal byproduct from pyrolysis of ... -
Environmental influences on dinitrogen fixation by bacteria associated with roots of maize and sorghum
(Texas A&M University. Libraries, 1987)Nitrogen-fixing bacteria in the rhizosphere of cereal grasses may reduce the fertilizer nitrogen requirements of grass crops by providing them with fixed nitrogen. This study evaluated the effects of oxygen partial pressure, ... -
Estimation and Fate of New Production in the Marine Environment
(2014-06-03)The fate of carbon in the ocean determines both the amount of CO_(2) that can be sequestered and the amount of sustainable biomass. Compartmentalization into new and regenerated production allows a first order estimate of ... -
Evaluating the technique of using nitrogen retention as a response criterion for amino acid studies in the horse
(Texas A&M University, 2007-09-17)Six Quarter Horse yearling fillies were used in a duplicated 3 x 3 Latin square designed experiment to evaluate the technique of nitrogen retention as a response criterion for amino acid studies in the horse. The yearlings ... -
Flow of electrons in nitrate reductase from Chlorella vulgaris
(Texas A&M University. Libraries, 1984)A large-scale culture system for Chlorella vulgaris has been established and growth conditions determined for optimal production of nitrate reductase. Nitrate reductase was purified from collected cells. A novel method for ... -
The genetics and heritability of quantitative differences in N2 fixation in cowpea, Vigna unguiculata (L.) Walp
(Texas A&M University. Libraries, 1980)Cowpea, because of its ability to fix atmospheric nitrogen, coupled with its drought tolerance and ease of digestion, has become an important proteinaceous crop throughout the semi-arid regions of the world. Little research ... -
Implications of Different Nitrogen Input Sources for Primary Production and Carbon Flux Estimates in Coastal Waters
(2018-07-06)The coastal Gulf of Mexico (GOM) and Coastal Sea off Korea (CSK) both suffer from eutrophication and/or hypoxia, both of which are driven mainly by humans. We compared two different regions with different nitrogen input ... -
Influence of genotype on drought resistance and nitrogen fixation in cowpea (Vigna unguiculata (L.) Walp.)
(Texas A&M University. Libraries, 1983)Drought resistance and biological nitrogen fixation (BNF) potential of 437 diverse cowpea genotypes were determined. Plants were grown in irrigated and dryland plots in 1979 and 1980 near Lubbock, Texas. Drought resistance ...