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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 471 to 480 of 6057 (0.026 seconds)Spelling suggestions: "subject:"anitrogen,"" "subject:"initrogen,""
| 471 |
The reactions of active nitrogen with oxides of sulphur.Jacob, Adir January 1968 (has links)
No description available.
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| 472 |
A computer simulation model for manurial nitrogen management : environmental aspects (MANIMEA)Hengnirun, Somgiat. January 1996 (has links)
No description available.
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| 473 |
The effect of nitrogen on the morphological and historical characteristics of barley as related to lodging resistance.Skepasts, Alexander Visvaldis. January 1960 (has links)
No description available.
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| 474 |
The effect of nitrogen source urea and ammonium nitrate on the productivity and nutritive value of bromegrass, orchardgrass, perennial ryegrass and timothy, with special emphasis on timothy.Edwards, Linnell Malinston. January 1969 (has links)
No description available.
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| 475 |
Nitrogen-15 Isotope Effects in Bond Formation ReactionsHayes, Ernest 10 1900 (has links)
Nltrogen-15 isotope effects have been measured In the simple bond formation reactions of triethylamine with methyl iodide, triethylamine with ethyl iodide and triethylamine with ethyl bromide. Tests have been performed, to establish that the reactions were unidirectional under the experimental conditions and that the chemical procedures used to convert the quaternary ammonium salts to molecular nitrogen proceeded quantitatively. The mass spectrometer data were examined by rigorous statistical tests. At 6°C. the values of the ratio of rate constants, k14/k15, were: triethylamine-methyl iodide, 1.0009 +/- 0.0005; triethylamine-ethyl iodide, 1.0007 ±0.0006; trimethylamine-ethyl bromide, 0.9994 ±0.0006. For the reaction of triethylamine with ethyl iodide the value of k14/k15 increased slightly with increasing temperature. The results have been discussed in terms of the Bigeleisen theory of isotope effects with particular reference to the correct form for the effective mass term. / Thesis / Doctor of Philosophy (PhD)
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| 476 |
Nitrification in soils of Massachusetts as influenced by soil type and source of nitrogenFarnsworth, Raymond B. 01 January 1938 (has links) (PDF)
No description available.
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| 477 |
Effect of plant age on the form and amount of nitrogen uptake by greenhouse plants /El Jaoual, Touria 01 January 1993 (has links) (PDF)
No description available.
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| 478 |
Studies of the fate of NO3- and NH4+ nitrogen from various fertilizers on turfgrasses grown on three different soil types.Mancino, Charles F. 01 January 1983 (has links) (PDF)
No description available.
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| 479 |
The influence of family relationships upon the uptake of nitrogen in the soil by plants.Pack, A. Boy 01 January 1942 (has links) (PDF)
No description available.
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| 480 |
Nitrate nitrogen accumulation in soils as affected by soil reaction and certain treatmentsLarsinos, George J. 01 January 1928 (has links) (PDF)
No description available.
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