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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.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Evaluating nitrogen availability and emissions of greenhouse gas in soils amended with different organic and inorganic fertilizers./
作者:	Seay, John Alan.
面頁冊數:	135 p.
附註:	Source: Masters Abstracts International, Volume: 48-04, page: 1994.
Contained By:	Masters Abstracts International48-04.
標題:	Geography. -
電子資源:	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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