Review of Influencing Factors and Quantitative Evaluation Methods of Legacy Effect in Nitrogen Pollution [PDF]
[Objective] This study examines the legacy effect in aquatic nitrogen pollution control, emphasizing the role of historically accumulated nitrogen. It reviews advanced methods for quantifying lag times and legacy loads, aiming to provide a scientific ...
LI Shu-hao, LIU Zhi-hong, SONG Chang-chun
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The effect of mineral fertilizers on the yield of vegetable beans, depending on the competition between plants in crops [PDF]
The sources of nutrient accumulation in beans and bean seeds are the process of photosynthesis, root nutrition during the seed filling period, as well as the reutilization of substances accumulated in the vegetative organs in the previous period.
Varfolomeyeva Natalya +3 more
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SEASONAL INFLUENCE ON BIOMASS PRODUCTIVITY OF CERTAIN GREEN MANURES
Field experiments were conducted in kharif, rabi and summer seasons of 1993 - 94 in the University Experiment Farm at Annamalainagar to assess the seasonal influence on nodulation, biomass production and nitrogen accumulation of three green manures viz..
S. JAYARAM and P. PANNEERSELVAM
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The Rate of Amino Acid Nitrogen and Total Nitrogen Accumulation in the Fetal Lamb
AbstractTotal body water and nitrogen concentrations were determined for whole body homogenates of 18 fetal lambs. Nitrogen concentration averaged 10.5 ± 0.1 mg nitrogen/100 mg dry tissue. Amino acid represented approximately 82% of the total nitrogen and 55% of the total carbon content of the fetus.
P, Meier +3 more
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An increasing interest has been reported regarding the reintroduction of flax in the Mediterranean region. The aim of this present study was to evaluate the effects of nitrogen (N) fertilization on the performance of flax cv. Everest, under Mediterranean
Ioanna Kakabouki +10 more
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Nitrogen Accumulation in Mycelium of Neurospora crassa [PDF]
SUMMARY: Mycelium of Neurospora crassa accumulates arginine and glutamine when deprived of an amino acid or pyrimidines, or in the presence of cycloheximide or at the end of exponential growth. A large proportion of the accumulated arginine is sequestered in an osmotically sensitive compartment. Electron microscopy of this fraction shows it consists of
Y. MORA, G. ESPIN, K. WILLMS, J. MORA
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SAnA Hybrid Landfill: nitrogen emissions in lab-scale simulation reactors during the final aerobic step [PDF]
The whole test was planned in 3 phases: Semi-aerobic, Anaerobic, Aerobic, and was based on 6 bioreactors: 4 managed as hybrid and 2 as anaerobic control bioreactors.
Tepordei, Cristina
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The influence of potassium and calcium ions on nitrogen metabolism of cucumber seedlings
It was found that K+ or Ca2+ deficiency in a nitrate or ammonium medium increased the amount of accumulated total and non-protein nitrogen in some organs of cucumber seedlings, as also caused changes in accumulated potassium and calcium.
Genowefa Kubik-Dobosz
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Accumulation of nitrogen in the tissues in renal disease [PDF]
The retention of nitrogen as a manifestation of certain types of renal disease is a well-recognized phenomenon. When the conditions of study are carefully controlled with accurate analyses of the food and excreta the amounts of nitrogen retained in the body is, with severe cases, very large—two grams per day for periods of two weeks is not an ...
Davis, H., Foster, N. B.
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Impacts and fate of experimentally enhanced nitrogen deposition on a British lowland heath
Between 1989 and 1996, nitrogen, in the form of (NH4)2SO4 (7.7 or 15.4 kg ha-1 year-1), was added to experimental plots of Calluna at a lowland dry heath in the south of England. Background deposition at this site was estimated at between 13-18 kg N ha-1
Power, Sally A. (R17014) +5 more
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