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nitrogen-containing

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  • Nitrogen nutrition in the arbuscular mycorrhizal system — Contents 1 Role of nitrogen 1.1 Mechanism of action 1.2 Community and ecology 1.3 Alternate theories …   Wikipedia

  • nitrogen base — or nitrogenous base n a nitrogen containing molecule with basic properties esp one that is a purine or pyrimidine …   Medical dictionary

  • Nitrogen — carbon ← nitrogen → oxygen ↑ N ↓ P …   Wikipedia

  • Nitrogen fixation — is the natural process, either biological or abiotic, by which nitrogen (N2) in the atmosphere is converted into ammonia (NH3).[1] This process is essential for life because fixed nitrogen is required to biosynthesize the basic building blocks of …   Wikipedia

  • Nitrogen generator — Nitrogen generators and stations are stationary or mobile air to nitrogen production complexes. In advanced economies, membrane nitrogen plants have almost ousted alternative processes of nitrogen generation in all cases where nitrogen is not… …   Wikipedia

  • nitrogen mustard — n any of various toxic blistering compounds analogous to mustard gas but containing nitrogen instead of sulfur esp mechlorethamine * * * see chlormethine * * * 1. mechlorethamine hydrochloride. 2. any of a group of cytotoxic alkylating agents… …   Medical dictionary

  • nitrogen group element — ▪ chemical elements Introduction  any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …   Universalium

  • nitrogen — /nuy treuh jeuhn/, n. Chem. a colorless, odorless, gaseous element that constitutes about four fifths of the volume of the atmosphere and is present in combined form in animal and vegetable tissues, esp. in proteins: used chiefly in the… …   Universalium

  • Nitrogen narcosis — Inert gas narcosis [Nitrogen narcosis] Classification and external resources Divers breathe a mixture of oxygen, helium and nitrogen for deep dives to avoid the effects of narcosis. A cylinder label shows the maximum operating depth and mixture… …   Wikipedia

  • Nitrogen rule — The nitrogen rule states that organic compounds containing exclusively hydrogen, carbon, nitrogen, oxygen, silicon, phosphorus, sulfur, and the halogens either have 1) an odd nominal mass that indicates an odd number of nitrogen atoms are present …   Wikipedia

  • Nitrogen cycle — Schematic representation of the flow of nitrogen through the environment. The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle, providing different forms of nitrogen compounds assimilable by higher …   Wikipedia

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