PMID: 45006Jul 1, 1979

Loss of nitrogen by denitrification

Biology Bulletin of the Academy of Sciences of the USSR
P M SmirnovR K Pedishyus


A series of experiments showed the quantity and composition of nitrogen lost in gaseous form from fertilizers in soil is largely determined by the conditions of denitrification. Loss of nitrogen from ammonium sulfate or calcium nitrate was mainly through the release of nitrous oxide and molecular nitrogen, while nitrogen was released from sodium nitrite in the form of nitric oxide. Under anaerobic conditions and at neutral soil pH in the presence of glucose, the more reduced gaseous forms of nitrogen were released. However, the oxides of nitrogen predominated under conditions unfavorable for denitrification. The nitrogen oxides were not the terminal products of nitrogen conversion (nitrates and nitrites). By a process of dissimilation, the nitrogen oxides acted as electron acceptors for microorganisms, being converted to N2O and N2. The reduction of NO generally led to the formation of N2O as an intermediate, and depended on pH, aeration, and the presence of an energy source for the denitrifying organisms.

Related Concepts

Hydrogen-Ion Concentration
Nitrogen Dioxide
Nitrogen Oxides
Nitrous Oxide

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Synthetic Genetic Array Analysis

Synthetic genetic arrays allow the systematic examination of genetic interactions. Here is the latest research focusing on synthetic genetic arrays and their analyses.

Congenital Hyperinsulinism

Congenital hyperinsulinism is caused by genetic mutations resulting in excess insulin secretion from beta cells of the pancreas. Here is the latest research.

Neural Activity: Imaging

Imaging of neural activity in vivo has developed rapidly recently with the advancement of fluorescence microscopy, including new applications using miniaturized microscopes (miniscopes). This feed follows the progress in this growing field.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Epigenetic Memory

Epigenetic memory refers to the heritable genetic changes that are not explained by the DNA sequence. Find the latest research on epigenetic memory here.

Cell Atlas of the Human Eye

Constructing a cell atlas of the human eye will require transcriptomic and histologic analysis over the lifespan. This understanding will aid in the study of development and disease. Find the latest research pertaining to the Cell Atlas of the Human Eye here.

Femoral Neoplasms

Femoral Neoplasms are bone tumors that arise in the femur. Discover the latest research on femoral neoplasms here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

© 2021 Meta ULC. All rights reserved