Nitrogen fertilizer use in Wisconsin as anhydrous ammonia, urea-ammonium nitrate solutions, and urea ranged from about 148,000 to 213, 000 tons of N during the 19952000 period (Terry and Kirby, 2001). This amount is similar to that used about 10 years earlier when 170,000 tons of N was used in 1984. However, a substantial materials shift has occurred since 1984 when about 56% of the N used as t...

abstract field experiment was carried out at the ferdowsi university research field, mashhad, iran during 2006-2007, to determine how much effective the n-fertilization is, to find out the most suitable plant density which could be used in chamomile (matricaria chamomilla l. asteraceae) to increase the yield of anthodium flowers and content of essential oil. the experimental design was as two f...

objective(s) motility plays a major role in pathogenicity of helicobacter pylori, yet there is  scarce data regarding its chemotactic behaviour. the present study was designed to investigate the chemotactic responses of local isolates of h. pylori towards various sugars, amino acids, as well as some other chemical substances. materials and methods chemotaxis was assayed by a modified adler’s me...

background and aims. lichen planus (lp) is a relatively common, chronic dermato-mucosal disease that often affects the oral mucosa. among bacterial infections affecting lp, helicobacter pylori has recently been proposed as an important etiologic factor. the present study was designed to evaluate the association of lp and h. pylori infection. materials and methods. this study included 30 patient...

the chemical composition, degradability coefficients (in situ) and ruminal-intestinal disappearance(mobile bag procedure) of dry matter (dm) and crude protein (cp) were evaluated for olive cake (oc)silages treated (dm basis) with additives as follows: (1) untreated oc, (2) oc + 0.5% urea, (3) oc + 0.4%formic acid, (4) oc + 8% molasses, (5) oc + 0.5% urea + 8% molasses, (6) oc + 0.5% urea + 0.4%...

I N PREVIOUS work, it was found that the ‘osmotic ceiling’ in the urine from the desert rodents Heteromyidae is exceptionally high compared with the osmotic ceiling in urine from other mammals. This mechanism is of importance to water conservation. The general objective of the further investigations was to find in what respects the function of the heteromyid kidney differs from that of other ma...

A high delivered Kt/V(urea) (dKt/V(urea)) is advocated in the U.S. National Kidney Foundation Dialysis Outcomes Quality Initiative guidelines on hemodialysis (HD) adequacy, irrespective of the presence of residual renal function. The contribution of treatment adequacy and residual renal function to patient survival was investigated. The Netherlands Cooperative Study on the Adequacy of Dialysis ...

Urea is the most widely used nitrogen (N) fertilizer in direct-seeded, delayed-flood rice production. Urea fertilizer is susceptible to loss as ammonia gas to the atmosphere if not flooded in a timely manner. A urease inhibitor [i.e. N-(n-butyl) thiophosphorictriamide; NBPT] is recommended when a timely flood cannot be established. Recent research has indicated that when relative humidity (RH) ...

milk urea nitrogen (mun) of dairy cows was determined in relation to breed. a total of forty (40) pabna and red chittagong dairy cattle each of twenty (20) were selected to know the milk composition, nutritional status and milk urea nitrogen. live weight of pabna cattle (187±14 kg) was higher than that of red chittagong cattle (174±4 kg). in pabna cattle milk yield (4.94 kg), minerals (0.15%) a...

in order to investigate the effect of urea and azocompost on economic yield, nitrogen use efficiency (nue) and radiation use efficiency (rue) of wild majoram, a factorial experiment was conducted based on randomized complete block design with three replications at yazd and mashhad, iran, during 2012-2013 growing season. four urea levels and four azocompost levels (to provide 0, 40, 80 and 120 k...