منابع مشابه
Urethanes and Soil Nitrification
Urethanes have marked physiological activity in plants and animals. Lefevre (1939) found that phenyl urethane affects wheat germination, and subsequently Templeman and Sexton (1946) showed that a variety of urethanes suppress the germination of wheat and oats without affecting charlock. The most active urethanes (for example, isopropylphenylcarbamate;ethylphenylcarbamate) are effective at a con...
متن کاملBiochemistry of nitrification in soil.
Schloessing, J. H. & Muntz, C. A. (1877). C.R. Acad. Sci., Paris, 84, 301; 85, 1018. Schloessing, J. H. & Muntz, C. A. (1878). C.R. Acad. Sci., Paris, 86, 892. Schloessing, J. H. & Muntz, C. A. (1879). C.R. Acad. Sci., Paris, 89, 1075. Snell, F. D. & Snell, C. T. (1936). Colorimetric Methods of Analysis, p. 623. London: Chapman and Hall. Stevens, F. L. & Withers, W. A. (1909). Zbl.'Bakt. II, 23...
متن کاملNitrification of waste waters from fish-meal factories
Fish-meal factories generate waste waters with high chemical oxygen demand (COD), suspended solids (SS), fats and protein concentrations. After their treatment by anaerobic digestion, effluents with high ammoniaand organic-nitrogen contents and a fraction of residual COD are produced. A biological nitrification/denitrification process is proposed to reduce both the residual carbon and the nitro...
متن کاملNitrates in Groundwater Discharges from the Azores Archipelago: Occurrence and Fluxes to Coastal Waters
Groundwater discharge is an important vector of chemical fluxes to the ocean environment, and as the concentration of nutrients is often higher in discharging groundwater, the deterioration of water quality in the receiving environment can be the result. The main objective of the present paper is to estimate the total NO3 flux to coastal water bodies due to groundwater discharge in the volcanic...
متن کاملAdaptation of soil biological nitrification to heavy metals.
The adaptive response of soil biological nitrification to Zn and Pb was assessed using an in situ method we have developed. The method is based on reinoculating a sterilized metal contaminated soil with the same soil that is either uncontaminated or has been incubated with metal. This approach excludes the potentially confounding effects of metal aging reactions in soils. We found added Zn conc...
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ژورنال
عنوان ژورنال: Public Health Reports (1896-1970)
سال: 1956
ISSN: 0094-6214
DOI: 10.2307/4589451