نتایج جستجو برای: fe mn

تعداد نتایج: 109201  

Journal: :پژوهش های زراعی ایران 0
علی سلیمانی مرتضی فیروزی لیلا نارنجانی

in order to evaluate the effect of foliar application of micro nutrients on physiological growth indices and total dry matter yield of forage corn. field experiment was conducted in 2006 at bersian village isfahan. a randomized complete block design with four replications was used. plant treated with 8 foliar application treatments (fe, zn, cu, mn, fe + mn, cu + zn, fe + mn + cu + zn and contro...

2016
Yulin Liu Gaoren Huang Yimeng Sun Li Zhang Zhenwei Huang Jijie Wang Chunzhong Liu

Mn was an important alloying element used in Al-Mg-Mn alloys. However, it had to be limited to a low level (<1.0 wt %) to avoid the formation of coarse intermetallics. In order to take full advantage of the benefits of Mn, research was carried out to investigate the possibility of increasing the content of Mn by studying the effect of cooling rate on the formation of Fe- and Mn-rich intermetall...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2011
Vanessa A Fitsanakis Na Zhang Malcolm J Avison Keith M Erikson John C Gore Michael Aschner

Manganese (Mn) is an essential metal required for normal homeostasis. Humans chronically exposed to high Mn levels, however, may exhibit psychomotor signs secondary to increased brain Mn. As Mn and iron (Fe) share several cellular membrane transporters, decreased Fe levels resulting from Fe deficiency or anemia lead to increased brain Mn deposition. Conversely, decreased Mn levels are associate...

2011
Ali Akbar Moosavi Abdolmajid Ronaghi

Iron (Fe) and manganese (Mn) are essential nutrients for plants. Application of high levels of either Fe or Mn is often accompanied by relatively low levels of uptake for the other nutrient. The antagonistic relationship of these nutrient elements may occur either during absorption by roots or during translocation from roots to shoot. A greenhouse study was carried out to study the effect of so...

2008
Liping Qin Munir Humayun

Variations in the abundance of iron in the mantle may have important consequences for mantle dynamics and geochemistry. The abundance of iron in lavas derived from mantle source regions varies during partial melting and subsequent fractionation, so that source heterogeneities are not easily resolved in iron abundances alone. However, manganese is a geochemically similar element, so that the pla...

Journal: :تحقیقات آب و خاک ایران 0
نصرت اله نجفی منصور پارسازاده سیدجلال طباطبائی شاهین اوستان

to study the effect of nitrogen form and ph of nutrient solution on the uptake and concentration of fe, zn, cu and mn in roots and shoots of spinach plant, a factorial experiment was conducted with two factors including nutrient solution ph in three levels (4.5, 6.5 and 8.0) and nitrate to ammonium ratio of nutrient solution in five levels (100:0, 75:25, 50:50, 25:75 and 0:100). the experiment ...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2008
Vanessa A Fitsanakis Na Zhang Joel G Anderson Keith M Erikson Malcolm J Avison John C Gore Michael Aschner

Chronic exposure to manganese (Mn) may lead to a movement disorder due to preferential Mn accumulation in the globus pallidus and other basal ganglia nuclei. Iron (Fe) deficiency also results in increased brain Mn levels, as well as dysregulation of other trace metals. The relationship between Mn and Fe transport has been attributed to the fact that both metals can be transported via the same m...

Journal: :زراعت دیم ایران 0
غلامرضا ولیزاده اوصال لو موسسه تحقیقات کشاورزی دیم کشور بهزاد صادق زاده موسسه تحقیقات کشاورزی دیم کشور

nitrate and ammonium forms of nitrogen are being applied to improve plant growth and uptake of other nutrients. given that the effect of application of different nitrate to ammonium ratios accompanied by other fertilizers (i.e. fe, mn and zn) has not been studied on wheat growth as well as uptake of fe, mn and zn, three glasshouse pot studies were conducted with factorial arrangement of treatme...

Journal: :به زراعی کشاورزی 0
معرفت مصطفوی راد استادیار، بخش تحقیقات اصلاح و تهیة نهال و بذر، مرکز تحقیقات کشاورزی و منابع طبیعی استان گیلان، رشت، ایران اسماعیل جدیدی دانشجوی کارشناسی ارشد، گروه علوم و تکنولوژی تولید بذر، دانشکدة کشاورزی، دانشگاه آزاد اسلامی واحد آشتیان، آشتیان، ایران تقی بابایی مربی پژوهشی، بخش تحقیقات اصلاح و تهیة نهال و بذر، مرکز تحقیقات کشاورزی و منابع طبیعی استان مرکزی، اراک، ایران.

in order to evaluate the seed yield and qualitative traits and oil in some winter rapeseed (brassica napus l.) varieties as affected by micronutrient elements, this experiment was performed during 2011 - 2012 cropping seasons as split plot arrangement in randomized complete block design with three replications, in arak, iran. micronutrient fertilizers including of zero as check, fe, zn, mn, fe ...

Journal: :Journal of the Japan Institute of Metals and Materials 1973

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