Modeling dissolved organic nitrogen dynamics under different N management practices for intensive greenhouse production using an improved WHCNS_veg model

Geoderma ◽  
2019 ◽  
Vol 337 ◽  
pp. 1039-1050 ◽  
Author(s):  
Hao Liang ◽  
Kelin Hu ◽  
William D. Batchelor ◽  
Qing Chen ◽  
Bing Liang ◽  
...  
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Management Practices ◽  
Nitrogen Dynamics ◽  
Greenhouse Production ◽  
N Management

Dissolved organic nitrogen dynamics in a Mediterranean vineyard soil

2006 ◽  
Vol 38 (8) ◽  
pp. 2265-2277 ◽  
Author(s):  
M. Christou ◽  
E.J. Avramides ◽  
D.L. Jones
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Nitrogen Dynamics ◽  
Vineyard Soil

Mineral and Dissolved Organic Nitrogen Dynamics along a Soil Acidity-Fertility Gradient

2003 ◽  
Vol 67 (3) ◽  
pp. 878 ◽  
Author(s):  
Zengshou Yu ◽  
Tamara E. C. Kraus ◽  
Randy A. Dahlgren ◽  
William R. Horwath ◽  
Robert J. Zasoski
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Soil Acidity ◽  
Nitrogen Dynamics ◽  
Fertility Gradient

Mineral and Dissolved Organic Nitrogen Dynamics along a Soil Acidity-Fertility Gradient

2003 ◽  
Vol 67 (3) ◽  
pp. 878-888
Author(s):  
Zengshou Yu ◽  
Tamara E. C. Kraus ◽  
Randy A. Dahlgren ◽  
William R. Horwath ◽  
Robert J. Zasoski
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Soil Acidity ◽  
Nitrogen Dynamics ◽  
Fertility Gradient

scholarly journals Nitrogen dynamics in the Irish Sea and adjacent shelf waters: An exploration of dissolved organic nitrogen

2015 ◽  
Vol 164 ◽  
pp. 276-287 ◽  
Author(s):  
Grigorios Moschonas ◽  
Richard J. Gowen ◽  
Brian M. Stewart ◽  
Keith Davidson
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Nitrogen Dynamics ◽  
Irish Sea ◽  
The Irish Sea

Dissolved organic nitrogen dynamics in the North Sea: A time series analysis (1995–2005)

2010 ◽  
Vol 89 (1) ◽  
pp. 31-42 ◽  
Author(s):  
T. Van Engeland ◽  
K. Soetaert ◽  
A. Knuijt ◽  
R.W.P.M. Laane ◽  
J.J. Middelburg
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
North Sea ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Nitrogen Dynamics ◽  
Series Analysis ◽  
The North ◽  
The North Sea

Leaching loss of dissolved organic nitrogen from cropland ecosystems

2020 ◽  
Author(s):  
Hao Liang ◽  
Songjuan Gao ◽  
Zhiming Qi ◽  
Kelin Hu ◽  
Junzeng Xu
Keyword(s):  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Management Practices ◽  
Production Systems ◽  
Cropping Systems ◽  
Rice Production ◽  
Lowland Rice ◽  
N Leaching ◽  
Ecosystem Research ◽  
Leaching Loss

While widely studied in grassland and forest ecosystems, dissolved organic nitrogen (DON), an important form of N lost through leaching, has received little attention in cropland ecosystem research. A global literature review and partial least squares path modeling (PLS-PM) were adopted to assess the quantity and composition of N leaching loss under different cropping systems, soil types, and management practices, as well as to identify the major factors controlling DON leaching. Annual total dissolved nitrogen (TDN, organic + inorganic N) leaching under different cropping systems ranged from 4.0 to 383.2 kg N ha-1. Vegetable and rice production systems showed the greatest and least TDN leaching, respectively. Across different cropping systems, DON accounted for 4.7%–34.9% of TDN in leachate. The NH_4^+ N form of N leaching is negligible in most upland cropping systems (< 2.3%), but not so in lowland rice systems. The largest ratio of DON leaching to TDN leaching was found in a rice-wheat rotation (34.9%). Cropping systems in which animal manure or plant compost was applied or lowland rice was included showed a relatively high DON leaching ratio. Accordingly, in investigating DON leaching, more attention should be focused on cropping systems with manure application or lowland rice systems. Compared to climatic conditions and soil properties, field management practices (irrigation, chemical N input, and manure amendments) proved to be the factors most strongly influencing DON leaching. This suggests that optimizing water and N management practices is the most effective way of reducing the risk of DON leaching and increasing N use efficiency, particularly for vegetable and rice production systems.

Dissolved organic nitrogen dynamics in the Arctic Ocean

2013 ◽  
Vol 148 ◽  
pp. 1-9 ◽  
Author(s):  
Robert T. Letscher ◽  
Dennis A. Hansell ◽  
David Kadko ◽  
Nicholas R. Bates
Keyword(s):  
Arctic Ocean ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Nitrogen Dynamics ◽  
The Arctic ◽  
The Arctic Ocean
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