نتایج جستجو برای: ammonium sulfate

تعداد نتایج: 80120  

ارزانی, کاظم, سوری, محمد کاظم, یعقوبی سورکی, فرزانه,

Nowadays, spraying and foliar feeding represent one of the most effective techniques of applying essential nutrient elements to crops and to optimize the application of fertilizers in agriculture. In this research, effect of foliar application of different concentrations of ammonium sulfate on quantity and quality traits of cucumber under greenhouse conditions was investigated. The research was...

Journal: :علوم باغبانی ایران 0
مصباح بابالار استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج سعیده محتشمی دانشجوی سابق دکتری علوم باغبانی پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج و عضو هیئت علمی گروه گیاهان دارویی و معطر دانشگاه جهرم لیلا تبریزی استادیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج وحید روشن استادیار، مرکز تحقیقات کشاورزی و منابع طبیعی فارس، بخش منابع طبیعی

in order to study a the effect of different levels of ammonium sulfate on photosynthesis pigments, essential oil content and components in summer savory, an experiment was conducted based on randomized complete block design (rcbd) with five treatments and three replications on karaj climate conditions. the treatments included five levels of ammonium sulfate consist of: control (without fertiliz...

2015
Qin Xiang Ng

Ammonium sulfate [(NH4)2SO4] is one of the most widely used nitrogen-based fertilizer in agriculture, and has been produced for over 150 years. However, limited research has been done to investigate the eco-toxic effects of ammonium sulfate, commonly present in surface runoff. This study therefore aimed to investigate the effects of varying ammonium sulfate concentrations on the normal physiolo...

In order to study the effect of nitroxin bio-fertilizers (0, 3 and 6 liters per hectare) and ammonium sulfate fertilizer (0, 75 and 150 kg.ha-1) on yield, phytochemical, phenotypic and trace elements of Marrubium vulgare L., a factorial experiment based on completely randomized block design with three replications was conducted at Zanjan University in 2017. Nitroxin bio-fertilizer and ammonium ...

2017
Rachel F. Silvern Daniel J. Jacob Patrick S. Kim Eloise A. Marais Jay R. Turner Pedro Campuzano-Jost Jose L. Jimenez

Thermodynamic models predict that sulfate aerosol (S(VI) ≡ H2SO4(aq)+HSO−4 +SO 2− 4 ) should take up available ammonia (NH3) quantitatively as ammonium (NH+4 ) until the ammonium sulfate stoichiometry (NH4)2SO4 is close to being reached. This uptake of ammonia has important implications for aerosol mass, hygroscopicity, and acidity. When ammonia is in excess, the ammonium–sulfate aerosol ratio ...

Journal: :به زراعی نهال و بذر 0
سارا دهنورد s. dehnavard محمد کاظم سوری m. k. souri department of hotricultural science, college of agriculture, tarbiat modares university, tehran, iran.گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران صدیقه مردانلو s. mardanloo

nitrogen is one of the most important and essential lelments for plant growth and development and it has an important role on quantitative and qualitative yield production in agriculture. this study was carried out to evaluate the effects of foliar application of nitrogen on qualitative traits of tomato fruits using a completely randomized design with five treatments and four replications under...

Journal: :Applied and environmental microbiology 1987
M E Jacobson J E Mackin D G Capone

Ammonium production in the presence of specific inhibitors of sulfate reduction and methanogenesis was investigated in six marine sediments which differed in bulk properties and organic matter input. In all cases, little effect of the inhibitors on ammonium production was observed, although sulfate reduction was suppressed by molybdate. This gives evidence that the processes of fermentation and...

Journal: :حفاظت گیاهان 0
کبری اروجی محمدحسن راشدمحصل پرویز رضوانی مقدم مهدی نصیری محلاتی

to study the effect of type and different nitrogen fertilizers on controlling egyptian broomrape, field and greenhouse studies based on randomized complete block with three replications, were conducted at ferdowsi university of mashhad. greenhouse study treatments were consisted of ammonium nitrate, ammonium sulfate and urea each of which applied at four rates (75, 150, 300 and 350 kg/ha). fiel...

Journal: :vaccine research 0
kourosh maboudi department of biochemistry, ardabil branch, islamic azad university, ardabil, iran hashem yaghoubi department of biochemistry, ardabil branch, islamic azad university, ardabil, iran shahin hadadian department of research and development, pasteur institute of iran, karaj, iran

introduction: polyclonal antibodies are required to be affinity purified. improved purification methods of polyclonal antibody provide an opportunity to pick the most purified immunoglobulins as a primary or secondary antibody in immunoassays that are included in many vaccine studies. two common techniques for purifying proteins is salt precipitation and chromatography purification. our work fo...

Journal: :علوم باغبانی 0
مهنا ملاولی صاحبعلی بلندنظر سیدجلال طباطبایی

abstract nitrogen is a key nutrient in plant growth and it is necessary for amino acid synthesis. sulfur has very important role in the biosynthesis of the alliums flavor and pungency precursors and potassium improve crop yield and quality. in order to study the effect of ammonium nitrate and potassium sulfate on concentration some of the mineral elements in onion (allium cepa l. azar shahr cv....

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