Modelling the effects of nitrogen addition on soil nitrogen status and nitrogen uptake in a Norway spruce stand in Denmark

1998 ◽  
pp. 409-414
Author(s):  
Claus Beier ◽  
Henrik Eckersten
Keyword(s):  
Norway Spruce ◽  
Soil Nitrogen ◽  
Nitrogen Uptake ◽  
Nitrogen Addition ◽  
Nitrogen Status

Functional traits of poplar leaves and fine roots responses to ozone pollution under soil nitrogen addition

2022 ◽  
Vol 113 ◽  
pp. 118-131
Author(s):  
Pin Li ◽  
Rongbin Yin ◽  
Huimin Zhou ◽  
Sheng Xu ◽  
Zhaozhong Feng
Keyword(s):  
Functional Traits ◽  
Soil Nitrogen ◽  
Fine Roots ◽  
Nitrogen Addition ◽  
Ozone Pollution ◽  
Poplar Leaves

RELATIONSHIP OF YIELD AND TOTAL NITROGEN UPTAKE OF BRUSSELS SPROUTS PLANTS GROWN IN THE GREENHOUSE TO AVAILABLE SOIL NITROGEN

1969 ◽  
Vol 49 (3) ◽  
pp. 313-318 ◽  
Author(s):  
D. C. Munro
Keyword(s):  
Total Nitrogen ◽  
Soil Nitrogen ◽  
Nitrogen Uptake ◽  
Nitrate Nitrogen ◽  
Soil Samples ◽  
Moist Soil ◽  
Available Nitrogen ◽  
Air Drying ◽  
Brussels Sprouts ◽  
Relationship Of

Initial nitrate-nitrogen content of the soil gave a correlation coefficient (r) of 0.93 with yields and with total nitrogen uptake of Brussels sprouts plants (Brassica oleracea var. gemmifera DC., Jade Cross). Soil nitrogen extracted with 0.01 M NaHCO3 gave r values of 0.76 with yields and 0.75 with nitrogen uptake. Nitrate incubation results from leached, moist soil samples gave r values of 0.59 with yields and 0.56 with nitrogen uptake. However, air-drying of soil samples prior to leaching and incubation resulted in r values of only 0.15 and 0.11 with yields and nitrogen uptake, respectively. Available nitrogen determined by incubation without previous leaching of the soil samples gave high r values because of the influence of the initial nitrate nitrogen in the soil.

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