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Nitrogen cycle

en.wikipedia.org/wiki/Nitrogen_cycle

The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into various chemical forms as it circulates among the atmosphere and terrestrial and marine ecosystems. The conversion ...

The Nitrogen Cycle - Boundless

www.boundless.com/microbiology/textbooks/boundless-microbiology-textbook/microbial-ecology-16/nutrient-cycles-195/the-nitrogen-cycle-984-5464/

The nitrogen cycle is the process by which nitrogen is converted from ... Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as ... to use atmospheric nitrogen (N2), it must be "fixed" or converted into ammonia (NH3). ... This is important because plants can assimilate nitrate into their tissues, and ...

What is the process of converting nitrogen into a form that plants can ...

www.answers.com/Q/What_is_the_process_of_converting_nitrogen_into_a_form_that_plants_can_use

The process is called nitrogen fixation. ... The process of converting nitrogen into a form plants can use is known as nitrogen? Nitrogen Fixation -Eugene Chung.

nitrogen

www.cas.miamioh.edu/mbi-ws/biogeochemicalcycles/Nitrogen/nitrogen.htm

These organisms convert nitrogen in the soil to ammonia, which can then be taken up ... After nitrogen has been fixed, other bacteria convert it into nitrate, in a process ... Plants cannot use the nitrogen in our atmosphere without the assistance of ... form of nitrates while animals assimilate their nitrogen by eating the plants.

What converts nitrogen from the air into a form plants can use ...

www.reference.com/science/converts-nitrogen-air-form-plants-can-use-ab38424a95e76b29

Soil converts nitrogen into a form plants can use. Nitrates in soil and water are converted to nitrogen by bacteria, fixed by lightning and released into the air ...

Soil Management - Nitrogen - University of Hawaii

www.ctahr.hawaii.edu/mauisoil/c_nutrients01.aspx

Denitrification: Conversion of nitrate to atmospheric forms of nitrogen ... Organic nitrogen must be converted to ammonium before it is used by plants. ... In the soil, nitrogen fixating organisms can form special relationships with plants, called ... is necessary to convert N2 gas into ammonium through this biological process.

Nitrogen cycle - Lenntech

www.lenntech.com/nitrogen-cycle.htm

Nitrogen in the gaseous form cannot be absorbed and used as a nutrient by plants and ... Plants can use ammonia as a nitrogen source. ... anaerobic bacteria will convert them back into nitrogen gas, during a process called denitrification.

Forms of Nitrogen in the Soil - Plant and Soil Sciences eLibrary

passel.unl.edu/pages/informationmodule.php?idinformationmodule=1130447042&topicorder=2&maxto=8

Plants normally use nitrogen in only the ammonium and nitrate forms. ... Bacteria can convert nitrogen to organic forms through fixation. ... Moisture and oxygen are necessary for microbial function in both the mineralization and nitrification processes. .... When a plant residue with a wide C:N ratio is incorporated into the soil, ...

Nitrogen Fixation - Tree of Life Web Project

tolweb.org/notes/?note_id=3920

The process of biological nitrogen fixation was discovered by the Dutch ... NH4<sup>+</sup>, which is then incorporated into amino acids, which can be utilized by the plant. Plants cannot fix nitrogen on their own, but need it in one form or another to make ... cycle converting nitrogen containing compounds to ammonia, NH3, nitrates, ...

Nitrogen Cycle - Backyard Nature

www.backyardnature.net/econitro.htm

The problem is that green plants can't use the nitrogen that's free in the atmosphere. ... The process of chemically altering unusable, free atmospheric nitrogen into a form usable by organisms is referred to as nitrogen fixation. ... The process of converting ammonia to nitrate, called nitrification, is usually accomplished by...

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The nitrogen cycle | Sciencelearn Hub

sciencelearn.org.nz

Jul 30, 2013 ... As a gas, however, nitrogen can't be used by most living things. ... It has to be converted or 'fixed' to a more usable form through a process called fixation. ... Animals obtain these compounds when they eat the plants. ... Nitrifying bacteria in the soil convert ammonia into nitrite (NO2<sup>-</sup>) and then into ni...

The Nitrogen Cycle

www.princeton.edu

Almost all of these forms are used by one type of organism or another, and as they ... Nitrogen fixation is the conversion of inert dinitrogen gas into a form that can be ... tissue compounds of photosynthetic organisms: algae and higher plants. ... is the reduction of living tissue and organic waste to ammonia, a process that is ...

Loading The Global Nitrogen Cycle INTRODUCTION Nitrogen ...

content.bfwpub.com

fixation convert nitrogen into usable forms that the rest of life on Earth. can use. ... atmosphere into NH4, a form of. nitrogen that other organisms can. then use. 2. Which type of ... Which process refers to the conversion of nitrates to nitrogen. gas? ... Plants take up these nitrogenous compounds and use them to. organisms  .....