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Nitrogen-Plant-Soil Interactions at ...

Madsen, Isaac James.

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Nitrogen-Plant-Soil Interactions at the Root-Rhizosphere, Cropping System, and National Scales.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Nitrogen-Plant-Soil Interactions at the Root-Rhizosphere, Cropping System, and National Scales./
Author:	Madsen, Isaac James.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	145 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.
Contained By:	Dissertation Abstracts International78-12B(E).
Subject:	Soil sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10251409
ISBN:	9780355093254

Nitrogen-Plant-Soil Interactions at the Root-Rhizosphere, Cropping System, and National Scales.
Madsen, Isaac James.

Nitrogen-Plant-Soil Interactions at the Root-Rhizosphere, Cropping System, and National Scales. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 145 p.

Source: Dissertation Abstracts International, Volume: 78-12(E), Section: B.

Thesis (Ph.D.)--Washington State University, 2017.

This item is not available from ProQuest Dissertations & Theses.

The transport and transformation of N at all scales is of paramount importance to humans. Not only is N crucial for our survival, being a central building block in protein, but N can also be toxic when found in high concentrations in the wrong locations. This work focuses on the importance of the place of N at three distinct scales. 1.) At the seedling root system scale we examined the effects of the concentration of N on causing symptoms of root toxicity, and found increasing ammoniacal-N to increase the symptoms of toxicity to roots. 2.) At the field scale, cover cropping and reduced tillage where assessed for their potential to decrease soil NO3- leaching and increase of N exportation efficiency. 3.) At the national scale a research project database was used to assess the amount of research that has gone into the development of best management practices.

ISBN: 9780355093254Subjects--Topical Terms:

2122699
Soil sciences.

Nitrogen-Plant-Soil Interactions at the Root-Rhizosphere, Cropping System, and National Scales.
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500 $a Adviser: William L. Pan.
502 $a Thesis (Ph.D.)--Washington State University, 2017.
506 $a This item is not available from ProQuest Dissertations & Theses.
520 $a The transport and transformation of N at all scales is of paramount importance to humans. Not only is N crucial for our survival, being a central building block in protein, but N can also be toxic when found in high concentrations in the wrong locations. This work focuses on the importance of the place of N at three distinct scales. 1.) At the seedling root system scale we examined the effects of the concentration of N on causing symptoms of root toxicity, and found increasing ammoniacal-N to increase the symptoms of toxicity to roots. 2.) At the field scale, cover cropping and reduced tillage where assessed for their potential to decrease soil NO3- leaching and increase of N exportation efficiency. 3.) At the national scale a research project database was used to assess the amount of research that has gone into the development of best management practices.
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