The aim of this study was to determine the concentration of fluoride in urine of 1240 children (635 boys, 605 girls), aged 7-14, living in Gdańsk, Poland, and to examine whether a correlation exists between age and gender, school location, and fluoride level in the urine. Urinary F was determined with a fluoride ion specific electrode. The mean urinary F concentration in children attending two ...

abstract- to investigate the effects of bio-chemical and organic fertilizers on yield and seeds npk contents of pumpkin (cucurbita pepo var. styriaca), an experiment was conducted at the research farm of kurdistan university in 2009 growing season. treatments were included 1) control, 2) seeds inoculated with free-living n fixing bacteria (nfb), 3) seeds inoculated with phosphate-solubilizing b...

recently, increase in crop production depends on better seedling establishment, emergence rate and uniformity. thus, an experiment was carried out in a randomized complete block design with 8 fertilizer treatments and 4 replications in 2008 at sari agricultural sciences and natural resources university. the aim of this research was to evaluate effect of vermicompost (vc) on bush bean seedling e...

This research set out to evaluate the effect of combined biological and chemical nitrogen fertilizers on some corn hybrids. To this end an experiment was conducted as split plot on the basis of randomized complete block design with four replications. Main plots were included: use of chemical and biological fertilizers in four levels: 100% chemical fertilizer, 75% chemical fertilizer + 100% bio-...

to evaluate the effects of some phosphorus solubilizing bacteria strains on yield and agronomic traits in local bean (phaseolus vulgaris l.) of guilan, different phosphate fertilizer rates were tested during 2014 growing season. this research was carried out in experimental field of agricultural and natural resource research center of guilan province as split plot arrangement based on randomize...

The aim of this study was to explore the effect a combination manure and inorganic fertilizer (NPK Urea) on population phosphate-solubilizing bacteria yield maize. carried out from June October 2018 in Kemantren Village, Alas Kulak Hamlet, Jabung District, Malang Regency. This used randomized block design consisting 8 treatment levels repeated three times. results analysis variance showed that ...

plant secondary materials play an important role in health and human nutrition. according to the importance of coneflower in the production of secondary materials and also the effect of nutrient on the amount of secondary materials, a pot experiment was conducted with a completely randomized design six treatments and three replications in sari university of agricultural sciences and natural res...