نتایج جستجو برای: Mineral Elements

تعداد نتایج: 339462  

Journal: :caspian journal of enviromental sciences 0

considering the increasing rice consumption in the world and also the excessive application of pesticides to increase production, an experiment was conducted to determine the pesticide residues and their effects on nitrogen, potassium and phosphorus content of hashemi, khazar and gohar (sa13) rice cultivars, in a factorial design at randomized complete block design with three replications. in t...

Journal: :caspian journal of enviromental sciences 0

sediments from the southern caspian sea, located in iranian coast were examined on the basis of p-fractionation (five forms of phosphorus) by a sequential extraction scheme. ninety-six surface sediment samples (for each season with triplicate) were collected from eight sampling transects in 10 and 100 m depths during summer and winter in 2010-2011. the result indicated that the most abundant fo...

Journal: :desert 0
m. saberi faculty of natural resources, university of zabol, zabol, iran m. jafari professor, faculty of natural resources, university of tehran, karaj, iran a. tavili associate professor, faculty of natural resources, university of tehran, karaj, iran m.a. zare chahouki associate professor, faculty of natural resources, university of tehran, karaj, iran m. tahmoures msc. graduate, faculty of natural resources, university of tehran, karaj, iran

the aim of this research was to compare the amounts of existing mineral elements in plant aerial parts, litter and soil ofthree range species (bromus tomentellus, psathyrostachys fragilis, agropyron tauri) in order to investigate the litter effectof species on soil properties of taleghan rangeland. the measured mineral elements include carbon, nitrogen,phosphorous and potassium. after selection...

More than 30 mineral elements have been found with different key functions in helping plants and animals to survive and live healthy. As a direct result, they have always attracted the attention of scientists. The quest is to find some efficient analytical and quantitative procedures in this study to determine some mineral and trace elements of Iranian Crocus sativus L. corms. Several studies h...

More than 30 mineral elements have been found with different key functions in helping plants and animals to survive and live healthy. As a direct result, they have always attracted the attention of scientists. The quest is to find some efficient analytical and quantitative procedures in this study to determine some mineral and trace elements of Iranian Crocus sativus L. corms. Several studies h...

Journal: :مرتع و آبخیزداری 0
حسین ارزانی استاد دانشکدة منابع طبیعی دانشگاه تهران جواد معتمدی (ترکان) استادیار دانشکدة منابع طبیعی دانشگاه ارومیه محمود حمیدیان کارشناس ارشد مرتع داری، دانشکدة منابع طبیعی دانشگاه تهران زهرا ارزانی دانشگاه فرهنگیان، حکیم فردوسی کرج مجید آخشی دانشکدة منابع طبیعی دانشگاه تهران

to achieve the desired level of animal performance providing animal food supplies containing mineral elements is essential. for this purpose, mineral elements of 8 important rangeland species, including ferula ovina, prangus uloptera, medicago sativa, lotus goeblia, trifolium montanum, melilotus officinalis, sanguisorba minor and stachys inflate, were measured at different growth stages in the ...

Journal: :desert 2012
m. saberi m. jafari a. tavili m.a. zare chahouki m. tahmoures

the aim of this research was to compare the amounts of existing mineral elements in plant aerial parts, litter and soil ofthree range species (bromus tomentellus, psathyrostachys fragilis, agropyron tauri) in order to investigate the litter effectof species on soil properties of taleghan rangeland. the measured mineral elements include carbon, nitrogen,phosphorous and potassium. after selection...

Journal: :Veterinarska stanica 2020

Journal: :the iranian journal of pharmaceutical research 0
nardana esmaeili department of plant biology, school of biology, college of sciences, tehran university, tehran, iran. hasan ebrahimzadeh department of plant biology, school of biology, college of sciences, tehran university, tehran, iran. khosrou abdi department of medicinal chemistry and radiopharmacy, faculty of pharmacy, tehran university of medical sciences, tehran, 14174, iran. masoud mirmasomi department of plant biology, school of biology, college of sciences, tehran university, tehran, iran. navid lamei drug design and development research center, tehran university of medical sciences, tehran, iran. mehrdad azizi shamami nuclear science and technology research institute-atomic energy organization, tehran, iran.

more than 30 mineral elements have been found with different key functions in helping plants and animals to survive and live healthy. as a direct result, they have always attracted the attention of scientists. the quest is to find some efficient analytical and quantitative procedures in this study to determine some mineral and trace elements of iranian crocus sativus l. corms. several studies h...

2008
M. Saric Dragana Vasic Lj. Vasiljevic D. Skoric Snezana Mezei Slobodanka Pajevic

Concentration of mineral elements in calli of six sunflower inbred lines have been determined. Calli were induced from cotyledons of seven days old seedlings grown under sterile conditions. The differences between inbred lines in concentration of N, P, K, Mg, Fe and Mn were significant, whereas differences in the concentration of Ca, Na, Cu and Zn were insignificant. Average concentrations of m...

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