scholarly journals The integration of energy and nitrogen balance in the hummingbird Sephanoides sephaniodes

2003 ◽  
Vol 206 (19) ◽  
pp. 3349-3359 ◽  
Author(s):  
M. V. Lopez-Calleja
Keyword(s):  
Nitrogen Balance ◽  
Sephanoides Sephaniodes

NITROGEN CYCLES IN CROP ROTATIONS DIFFERING IN FERTILIZATION

2015 ◽  
Author(s):  
Saulius GUŽYS ◽  
Stefanija MISEVIČIENĖ
Keyword(s):  
Crop Rotation ◽  
Soil Nitrogen ◽  
Nitrogen Fertilizer ◽  
Nitrogen Balance ◽  
Mineral Soil ◽  
Crop Productivity ◽  
Drainage Water ◽  
Perennial Grasses ◽  
Crop Rotations ◽  
Cereal Crop

The use of nitrogen fertilizer is becoming a global problem; however continuous fertilization with nitrogen ensures large and constant harvests. An 8 year research (2006–2013) was conducted to evaluate the relationships between differently fertilized cultivated plant rotations. The research was conducted in Lipliunai (Lithuania) in the agroecosystem with nitrogen metabolism in fields with deeper carbonaceous soil, i.e. Endocalcari Endohypogleyic Cambisol (CMg-n-w-can). The research area covered three drained plots where crop rotation of differently fertilized cereals and perennial grasses was applied. Samples of soil, water and plants were investigated in the Chemical Analysis Laboratory of the Aleksandras Stulginskis University certified by the Environment Ministry of the Republic of Lithuania. The greatest productivity was found in a crop rotation with higher fertilization (N32-140). In crop rotation with lower fertilization (N24-90) productivity of cereals and perennial grasses (N0-80) was 11–35 % lower. The highest amount of mineral soil nitrogen was found in cereal crop rotation with higher fertilization. It was influenced by fertilization and crop productivity. The lowest Nmin and Ntotal concentrations in drainage water were found in grasses crop rotation. Crop rotations of differently fertilized cereals increased nitrogen concentration in drainage water. Nmin concentration in water depended on crop productivity, quantity of mineral soil nitrogen, fertilization, and nitrogen balance. The lowest nitrogen leaching was found in the crop rotation of grasses. Cereal crop rotation increased nitrogen leaching by 12–42 %. The usage of all crop rotations resulted in a negative nitrogen balance, which essentially depended on fertilization with nitrogen fertilizer.

Effects of energy supplementation on energy losses and nitrogen balance of steers fed green-chopped wheat pasture I: Calorimetry

2017 ◽  
Vol 95 (5) ◽  
pp. 2133
Author(s):  
A. L. Shreck ◽  
P. J. Ebert ◽  
E. A. Bailey ◽  
J. S. Jennings ◽  
K. D. Casey ◽  
...  
Keyword(s):  
Nitrogen Balance ◽  
Energy Losses ◽  
Wheat Pasture ◽  
Energy Supplementation

WIND-ERODED NITROGEN BALANCE IN AN ENTIC HAPLUSTOLL UNDER DIFFERENT TILLAGE CONDITIONS

2019 ◽  
Vol 18 (12) ◽  
pp. 2635-2641
Author(s):  
Carlos Asensio ◽  
Sergio Alberto Abascal ◽  
Daniel Eduardo Buschiazzo
Keyword(s):  
Nitrogen Balance

SOIL NITROGEN BALANCE UNDER CEREALS AND PERENNIAL CROPS

2019 ◽  
Vol 14 (10) ◽  
pp. 1564-1574
Author(s):  
Anatoliy Gumbarov ◽  
◽  
Evgeniy Dolobeshkin ◽  
Viktor Shishkin ◽  
Aleksandr Shishkin ◽  
...  
Keyword(s):  
Soil Nitrogen ◽  
Nitrogen Balance ◽  
Perennial Crops ◽  
Soil Nitrogen Balance

Evaluation of Serum Visceral Protein Levels as Indicators of Nitrogen Balance in Thermally Injured Patients

1991 ◽  
Author(s):  
Dawn E. Carlson ◽  
William G. Cioffi ◽  
Mason Jr. ◽  
McManus Arthur D. ◽  
Pruitt William F. ◽  
...  
Keyword(s):  
Nitrogen Balance ◽  
Protein Levels ◽  
Injured Patients

Nitrogen Balance in the Southern San Joaquin Valley

1976 ◽  
Vol 5 (3) ◽  
pp. 274-278 ◽  
Author(s):  
Robert J. Miller ◽  
Richard B. Smith
Keyword(s):  
Nitrogen Balance ◽  
San Joaquin Valley

Effect of Dietary Volatile Fatty Acids on Nitrogen Balance in Chickens.

1997 ◽  
Vol 34 (5) ◽  
pp. 349-351
Author(s):  
Hiroshi KAMISOYAMA ◽  
Zeng-Tao SUN ◽  
Mineo HASHIGUCHI ◽  
Yutaka ISSHIKI
Keyword(s):  
Fatty Acids ◽  
Nitrogen Balance ◽  
Volatile Fatty Acids
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