scholarly journals Nitrogen Uptake and Yielding Ability of Non-nodulating Soybean Genotype(En 1282) under Organic Nitrogen Application(Dried Cattle Feces).

2002 ◽  
Vol 71 (3) ◽  
pp. 343-348 ◽  
Author(s):  
Junko TAZAWA ◽  
Kazuyuki MATSUO ◽  
Kazuei USUKI ◽  
Hiroyuki YAMAMOTO
Keyword(s):  
Nitrogen Uptake ◽  
Organic Nitrogen ◽  
Nitrogen Application ◽  
Soybean Genotype ◽  
Yielding Ability ◽  
Cattle Feces

Sorghum-Legume Intercropping and the Effects of Nitrogen Fertilization. I. Yield and Nitrogen Uptake by Crops

1984 ◽  
Vol 20 (3) ◽  
pp. 251-259 ◽  
Author(s):  
A. B. Waghmaref ◽  
S. P. Singh
Keyword(s):  
Nitrogen Uptake ◽  
Nitrogen Fertilization ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
New Delhi ◽  
Total System ◽  
Nitrogen Application ◽  
Agricultural Research Institute ◽  
Maximum Increase ◽  
Four Levels

SUMMARYSix intercropping systems and four levels of nitrogen were compared at the Indian Agricultural Research Institute, New Delhi, in the summer rainy seasons (July-October) of 1978 and 1979. The maximum increase in sorghum yield was obtained when it was associated with fodder cowpea, followed by association with grain cowpea and greengram. The application of 40, 80 and 120 kg N ha−1 increased sorghum yield by 8.6, 16.1 and 18.2% in 1978 and by 2.9, 8.1 and 14.1% in 1979, respectively, compared with unfertilized sorghum. The nitrogen uptake by sorghum, and by the total system, was greater in sorghum-legume intercropping systems than in sole sorghum. Nitrogen application also increased the nitrogen uptake by sorghum and by the whole system.

scholarly journals Organic nitrogen uptake is a significant contributor to nitrogen economy of subtropical epiphytic bryophytes

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Liang Song ◽  
Hua-Zheng Lu ◽  
Xing-Liang Xu ◽  
Su Li ◽  
Xian-Meng Shi ◽  
...  
Keyword(s):  
Nitrogen Uptake ◽  
Organic Nitrogen ◽  
Nitrogen Economy ◽  
Significant Contributor ◽  
Organic Nitrogen Uptake

Dissolved inorganic and organic nitrogen uptake in the coastal North Sea: A seasonal study

2014 ◽  
Vol 147 ◽  
pp. 78-86 ◽  
Author(s):  
Alessia Moneta ◽  
Bart Veuger ◽  
Pieter van Rijswijk ◽  
Filip Meysman ◽  
Karline Soetaert ◽  
...  
Keyword(s):  
North Sea ◽  
Nitrogen Uptake ◽  
Organic Nitrogen ◽  
Seasonal Study ◽  
Inorganic And Organic Nitrogen ◽  
Inorganic And Organic ◽  
Organic Nitrogen Uptake

Prominent nitrogen uptake response to cattle feces by specific plant species

2001 ◽  
pp. 856-857
Author(s):  
M. Yamagata ◽  
S. Matsumoto ◽  
N. Koga ◽  
N. Ae
Keyword(s):  
Plant Species ◽  
Nitrogen Uptake ◽  
Cattle Feces

Organic nitrogen uptake and growth by the chrysophyte Aureococcus anophagefferens during a brown tide event

1997 ◽  
Vol 129 (2) ◽  
pp. 377-387 ◽  
Author(s):  
G. M. Berg ◽  
P. M. Glibert ◽  
M. W. Lomas ◽  
M. A. Burford
Keyword(s):  
Nitrogen Uptake ◽  
Organic Nitrogen ◽  
Brown Tide ◽  
Aureococcus Anophagefferens ◽  
Organic Nitrogen Uptake

scholarly journals Modeling the effects of organic nitrogen uptake by plants on the carbon cycling of boreal forest and tundra ecosystems

2013 ◽  
Vol 10 (12) ◽  
pp. 7943-7955 ◽  
Author(s):  
Q. Zhu ◽  
Q. Zhuang
Keyword(s):  
Boreal Forest ◽  
Carbon Cycling ◽  
Nitrogen Uptake ◽  
Plant Uptake ◽  
Boreal Forests ◽  
Organic Nitrogen ◽  
Tundra Ecosystem ◽  
Ecosystem Production ◽  
Tundra Ecosystems ◽  
Organic Nitrogen Uptake

Abstract. Boreal forest and tundra are the major ecosystems in the northern high latitudes in which a large amount of carbon is stored. These ecosystems are nitrogen-limited due to slow mineralization rate of the soil organic nitrogen. Recently, abundant field studies have found that organic nitrogen is another important nitrogen supply for boreal forest and tundra ecosystems. In this study, we incorporated a mechanism that allowed boreal plants to uptake small molecular amino acids into a process-based biogeochemical model, the Terrestrial Ecosystem Model (TEM), to evaluate the impact of organic nitrogen uptake on ecosystem carbon cycling. The new version of the model was evaluated for both boreal forest and tundra sites. We found that the modeled organic nitrogen uptake accounted for 36–87% of total nitrogen uptake by plants in tundra ecosystems and 26–50% for boreal forests, suggesting that tundra ecosystem might have more relied on the organic form of nitrogen than boreal forests. The simulated monthly gross ecosystem production (GPP) and net ecosystem production (NEP) tended to be larger with the new version of the model since the plant uptake of organic nitrogen alleviated the soil nitrogen limitation especially during the growing season. The sensitivity study indicated that the most important factors controlling the plant uptake of organic nitrogen was the soil amino acid diffusion coefficient (De) in our model, suggesting that the organic nitrogen uptake by plants is likely to be regulated by the edaphic characteristics of diffusion. The model uncertainty due to uncertain parameters associated with organic nitrogen uptake of the tundra ecosystem was larger than the boreal forest ecosystems. This study suggests that considering the organic nitrogen uptake by plants is important to carbon modeling of boreal forest and tundra ecosystems.

Nitrogen Uptake by Native and Invasive Temperate Coastal Macrophytes: Importance of Dissolved Organic Nitrogen

2010 ◽  
Vol 33 (3) ◽  
pp. 784-797 ◽  
Author(s):  
Thomas J. Mozdzer ◽  
Joseph C. Zieman ◽  
Karen J. McGlathery
Keyword(s):  
Nitrogen Uptake ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen
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