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Evaluating nitrogen availability and...

Seay, John Alan.

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Evaluating nitrogen availability and emissions of greenhouse gas in soils amended with different organic and inorganic fertilizers.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Evaluating nitrogen availability and emissions of greenhouse gas in soils amended with different organic and inorganic fertilizers./
Author:	Seay, John Alan.
Description:	135 p.
Notes:	Source: Masters Abstracts International, Volume: 48-04, page: 1994.
Contained By:	Masters Abstracts International48-04.
Subject:	Geography. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR60129
ISBN:	9780494601297

Evaluating nitrogen availability and emissions of greenhouse gas in soils amended with different organic and inorganic fertilizers.
Seay, John Alan.

Evaluating nitrogen availability and emissions of greenhouse gas in soils amended with different organic and inorganic fertilizers. - 135 p.

Source: Masters Abstracts International, Volume: 48-04, page: 1994.

Thesis (M.Sc.)--Carleton University (Canada), 2009.

Laboratory and field studies were conducted to examine the effect of different amendments on the transformation of nitrogen (N) in soil and the emission of N2O-N and CO2-C. Amendments included alfalfa (Medicago sativa), liquid cattle manure and ammonium nitrate synthetic fertilizer (AN) applied at rates typical for a dairy farm in Eastern Ontario. The highest levels of N transformations, N2O-N and CO 2-C emissions occurred in plots amended with alfalfa, followed by manure, AN and control. With lower C:N ratios in the organic amendments, these results indicate the importance of carbon (C) in N cycling. Transformations and emissions of gases occurred very rapidly after application of amendments with more than half the total N2O-N and CO2-C emission occurring within the first 10 days of the field experiment. Quantities of inorganic N were highest in the plots amended with AN, followed by manure, alfalfa and control. These results have practical implications for the type of amendments and the timing of application needed to improve soil N availability while reducing greenhouse gas emissions.

ISBN: 9780494601297Subjects--Topical Terms:

524010
Geography.

Evaluating nitrogen availability and emissions of greenhouse gas in soils amended with different organic and inorganic fertilizers.
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100 1 $a Seay, John Alan. $3 1678683
245 1 0 $a Evaluating nitrogen availability and emissions of greenhouse gas in soils amended with different organic and inorganic fertilizers.
300 $a 135 p.
500 $a Source: Masters Abstracts International, Volume: 48-04, page: 1994.
502 $a Thesis (M.Sc.)--Carleton University (Canada), 2009.
520 $a Laboratory and field studies were conducted to examine the effect of different amendments on the transformation of nitrogen (N) in soil and the emission of N2O-N and CO2-C. Amendments included alfalfa (Medicago sativa), liquid cattle manure and ammonium nitrate synthetic fertilizer (AN) applied at rates typical for a dairy farm in Eastern Ontario. The highest levels of N transformations, N2O-N and CO 2-C emissions occurred in plots amended with alfalfa, followed by manure, AN and control. With lower C:N ratios in the organic amendments, these results indicate the importance of carbon (C) in N cycling. Transformations and emissions of gases occurred very rapidly after application of amendments with more than half the total N2O-N and CO2-C emission occurring within the first 10 days of the field experiment. Quantities of inorganic N were highest in the plots amended with AN, followed by manure, alfalfa and control. These results have practical implications for the type of amendments and the timing of application needed to improve soil N availability while reducing greenhouse gas emissions.
590 $a School code: 0040.
650 4 $a Geography. $3 524010
650 4 $a Physical Geography. $3 893400
650 4 $a Environmental Studies. $3 1669635
650 4 $a Agriculture, Soil Science. $3 1017824
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