Recognizing both denitrification and nitrogen consumption improves performance of stream diel N 2 flux models

2020 ◽  
Vol 18 (5) ◽  
pp. 169-182
Author(s):  
Rachel L. Nifong ◽  
Jason M. Taylor ◽  
Grant Adams ◽  
Matthew T. Moore ◽  
Jerry L. Farris
Keyword(s):  
Nitrogen Consumption

Influence of the Timing of Nitrogen Additions during Synthetic Grape Must Fermentations on Fermentation Kinetics and Nitrogen Consumption

2005 ◽  
Vol 53 (4) ◽  
pp. 996-1002 ◽  
Author(s):  
Gemma Beltran ◽  
Braulio Esteve-Zarzoso ◽  
Nicolas Rozès ◽  
Albert Mas ◽  
José M. Guillamón
Keyword(s):  
Grape Must ◽  
Fermentation Kinetics ◽  
Nitrogen Consumption ◽  
Nitrogen Additions

Nitrogen Consumption and Productivity of Cotton under Sensor‐based Variable‐rate Nitrogen Fertilization

2019 ◽  
Vol 111 (6) ◽  
pp. 3320-3328
Author(s):  
Jianming Yu ◽  
Xinhua Yin ◽  
Tyson B. Raper ◽  
Sindhu Jagadamma ◽  
Daocai Chi
Keyword(s):  
Nitrogen Fertilization ◽  
Variable Rate ◽  
Nitrogen Consumption

Models of Ammonia Excretion for Brook Trout (Salvelinus fontinalis) and Rainbow Trout (Salmo gairdneri)

1980 ◽  
Vol 37 (9) ◽  
pp. 1421-1425 ◽  
Author(s):  
Larry J. Paulson
Keyword(s):  
Body Weight ◽  
Rainbow Trout ◽  
Brook Trout ◽  
Salvelinus Fontinalis ◽  
Ammonia Excretion ◽  
Salmo Gairdneri ◽  
Feeding Rates ◽  
Data Set ◽  
Nitrogen Consumption ◽  
Good Agreement

Ammonia excretion by brook trout (Salvelinus fontinalis) and rainbow trout (Salmo gairdneri) was measured in relation to nitrogen consumption, body weight (15–154 g for rainbow trout and 50–360 g for brook trout), and temperature (11.2–21.0 °C) under laboratory conditions. Four natural diets, collected from Castle Lake, California, and a commercial pellet diet were fed to the trout in gelatin capsules at feeding rates from 2.5 to 5% body weight∙d−1. Nitrogen consumption was the most important factor influencing ammonia excretion, followed by body weight and temperature. Testing the models with an independent data set revealed good agreement between measured and predicted rates of excretion. The models seem to estimate adequately ammonia excretion by trout in both natural and artificial aquatic systems.Key words: models, ammonia excretion, nitrogen consumption, body weight, temperature, multiple regression, rainbow trout, brook trout

scholarly journals THE NITROGEN CONSUMPTION BY ALFALFA CROPS DEPENDING ON THE NITROGEN NUTRITION PATTERN

2020 ◽  
pp. 50-56
Author(s):  
М.Ю. Козырева ◽  
Л.Ж. Басиева
Keyword(s):  
High Altitude ◽  
Nitrogen Nutrition ◽  
Field Studies ◽  
Nitrogen Fertilizers ◽  
Natural Conditions ◽  
The North ◽  
Nitrogen Consumption ◽  
Control Option ◽  
Leached Chernozem ◽  
North Ossetia

Приведены результаты полевых исследований потребления азота посевами люцерны в зависимости от режима азотного питания и симбиотической активности посевов за 2017…2019 годы. Опыты с люцерной синегибридной проведены в экологических условиях предгорной зоны РСО-Алания на черноземе выщелоченном с близким залеганием галечника. Сравнивались минеральный и симбиотрофный режимы азотного питания растений люцерны. Установлено, что в год посева потребление азота посевами люцерны составило от 105,0 до 135,4 кг/га, при этом к первому укосу потребление было в 1,1…1,2 раза больше, чем ко второму укосу. На второй и третий годы пользования посевами потребление азота выросло в 1,7…1,9 раза в сравнении с показателями года посева. Показатели вариантов с естественными условиями (контроль) и внесением стартовых доз азотных удобрений (N30) были практически идентичными. Показатели вариантов с инокуляцией семян высокогорным инокулюмом (Ин-1800) и внесением стартовых доз азотных удобрений на фоне инокуляции (N30 + Ин) во второй и третий годы пользования посевами были практически идентичными. Объемы потребления азота в указанных вариантах составили свыше 235 кг/га, или на 25,6…27,1 % выше показателей контрольного варианта. В сумме за три года исследований посевы люцерны в контрольном варианте усвоили 483,3 кг/га азота. Стартовые дозы азотных удобрений (N30) увеличили данный показатель всего на 1,4 %. Предпосевная инокуляция семян способствовала увеличению потребления азота во всех вариантах: в варианте с промышленным штаммом ризоторфина (Шт. 425а) – на 17,8 %, с высокогорным инокулюмом на фоне внесения стартовых доз минеральных азотных удобрений (N30 + Ин) – на 24,6 %, с высокогорным инокулюмом в чистом виде (Ин-1800) – на 27,1 %. Ключевые слова: люцерна, режим питания, симбиотическая активность, минеральный азот, биологический азот, потребление азота. The results of field studies of nitrogen consumption in alfalfa crops depending on the nitrogen nutrition pattern and symbiotic activity of crops for 2017...2019 are presented. Experiments with the alfalfa purple were carried out in the ecological conditions of the foothill zone of the North Ossetia-Alania, on leached chernozem with a close occurrence of gravel. Mineral and symbiotrophic patterns of nitrogen nutrition of alfalfa plants were compared. It was found that in the year of planting, the nitrogen consumption of alfalfa crops ranged from 105.0 to 135.4 kg/ha, and by the first mowing, the consumption was 1.1...1.2 times bigger than by the second mowing. In the second and third years of crop use, nitrogen consumption increased by 1.7...1.9 times compared to the year of planting. The parameters of the options with natural conditions (control) and the addition of starting doses of nitrogen fertilizers (N30) were almost identical. In the second and third years of use of crops, parameters of options with inoculation of seeds with high-altitude inoculum (In-1800) and the addition of starting doses of nitrogen fertilizers within the background of inoculation (N30 + in) were almost identical. In these options, the amount of nitrogen consumption was more than 235 kg/ha, or 25.6...27.1 % higher than in the control variant. In total, over three years of research, in the control option alfalfa crops took 483.3 kg/ha of nitrogen. Starting doses of nitrogen fertilizers (N30) increased this indicator by only 1.4 %. Pre-planting inoculation of seeds contributed to an increase in nitrogen consumption in all options: in the option with the industrial strain of risotorphine (St. 425a) – by 17.8 %, with high-altitude inoculum within the background of adding starting doses of mineral nitrogen fertilizers (N30 + In) – by 24.6 %, with high-altitude inoculum in pure form (In-1800) – by 27.1 %.

scholarly journals Identification of Nitrogen Consumption Genetic Variants in Yeast Through QTL Mapping and Bulk Segregant RNA-Seq Analyses

2017 ◽  
Vol 7 (6) ◽  
pp. 1693-1705 ◽  
Author(s):  
Francisco A. Cubillos ◽  
Claire Brice ◽  
Jennifer Molinet ◽  
Sebastién Tisné ◽  
Valentina Abarca ◽  
...  
Keyword(s):  
Qtl Mapping ◽  
Genetic Variants ◽  
Rna Seq ◽  
Nitrogen Consumption

scholarly journals Nitrogen consumption during batch cultivation of Neisseria meningitidis (serogroup C) in Frantz medium

2001 ◽  
Vol 32 (4) ◽  
Author(s):  
Júlia Baruque-Ramos ◽  
Haroldo Hiss ◽  
Márcio Alberto Vicentin ◽  
Marcelo Fossa da Paz ◽  
Argélia Peixoto ◽  
...  
Keyword(s):  
Neisseria Meningitidis ◽  
Batch Cultivation ◽  
Nitrogen Consumption
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