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结果 1-10 的 938
Zmiennosc zawartosci frakcji substancji organicznej gleby, oznaczanych metoda utlenienia nadmanganianu potasu.
1982
Loginow W. | Wisniewski W.
For examining changes in the organic substance of soil during vegetative period there was applied - for the first time - a new method of its fractionation on the basis of susceptibility to oxidation. There was stated a considerable variability of the content of three determined fractions. Mean values for the whole period of investigation, however, did not depict any dependence on the cultivated plant (potato and rye) and the level of fertilization. Usability of the new method has been positively estimated and there has been shown a necessity for a theoretical build-up by model experiments.
显示更多 [+] 显示较少 [-]Biopotency of alpha-tocopherols as determined by curative myopathy bioassay in the rat [Vitamin E].
1982
Machlin L.J. | Gabriel E. | Brin M.
Studies on the intestine mucosa and the leucine-amino-peptidase activity in chicks as determined by the composition of ration
1982
Vojnova, R. | Angelova, L. | Ivanov, N. (Institut po Zhivotnov"dstvo, Kostinbrod (Bulgaria))
Einfluss der Phosphatduengung auf den Cadmiumgehalt des Bodens, ermittelt anhand zahlreicher Dauerversuche in Westeuropa.
1982
Iserman K.
Einfluss von Stoerungen der Eutergesundheit auf den radio- und enzymimmunologisch bestimmten Progesterongehalt im Milchfett und in der Milch von Kuehen.
1982
Hoedemaker M.
The variability of evapotranspiration in the Rietholzbach Basin determined using energy balance methods | Variabilität der Evapotranspiration im Einzugsgebiet Rietholzbach bestimmt mit Energiebilanz-methoden. English
1982
Schädler, Bruno
Changes in the composition, digestibility and energetic nutritive value of alfalfa, 1: Green mass from the first and second aftergrowth [digestibility determined with rams]
1982
Najdenov, T. | Zhelyazkov, T. (Institut po Furazhite, Pleven (Bulgaria))
Aussagekraft einiger im Bereich des M. long. dorsi planemetrisch und linear ermittelter Masse ueber Gewebeanteile von Schweinehaelften.
1982
Sack E.
Plant-determined variation in the cardenolide content, thin-layer chromatography profiles, and emetic potency of monarch butterflies, Danaus plexippus reared on the milkweed, Asclepias eriocarpa in California.
1982
Brower L.P. | Seiber J.N. | Nelson C.J. | Lynch S.P. | Tuskes P.M.
Residues of the forced molting agent xylonidine in chicken egg yolk and albumen as determined by combined gas-liquid chromatography-mass spectrometry.
1982
Taylor J.E. | Van Iderstine A. | Weppelman R.M. | Olson G. | Walker R.W. | Mertel H.E. | VandenHeuvel W.J.A.
