نتایج جستجو برای: potash k2o

تعداد نتایج: 1956  

Journal: :International blood research & reviews 2023

Introduction: Potash refers to the various naturally occurring water-soluble compounds of potassium used as a traditional food additive in Nigeria. Several health warnings have highlighted deleterious effect their consumption.
 Aim: The present study is aimed at evaluating effects graded doses potash consumption on haematological and hepatorenal indices using Wistar rat models.
 Mater...

بوداغی , هاجر , دهقانی, محمدهادی, محمدی, محمودعلی , محوی, امیرحسین , نظم‌آرا, شاهرخ , یونسیان, مسعود ,

Background and purpose: Fertilizer is one of the sources of heavy metal contamination in soil and underground water. The purpose of this study was to investigate the concentration of cadmium, lead and arsenic in paddy soil and underground water and its relationship with chemical fertilizer in Ghaemshahr City. Materials and methods: During the spring and summer in 2010, samples of soil were ran...

2016
Wenxiang Zhang Qingzhong Ming Zhengtao Shi Jie Niu Huai Su

Lacustrine deposits at the margin of the southeastern Tibetan Plateau (SETP) are sensitive indicators for the evolution of the southwest Asian monsoon (SWAM) during the Quaternary. Thus, they can provide insight into the Quaternary climatic history and their relationship with global climatic changes. The results of the geochemical analysis of the Xiaozhongdian Basin section at the SETP suggest ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی ساری - دانشکده علوم کشاورزی 1392

به منظور بررسی اثر منابع، مقادیر و روش های مختلف مصرف کود های سولفات و کلرید پتاسیم، بر خصوصیات کمی و کیفی کیوی، آزمایشی به صورت فاکتوریل و در قالب طرح بلوک های کامل تصادفی در مقادیر صفر، 100، 150 و 200 گرم k2o در هر درخت، با دو روش پخش سطحی و کانالکود بر روی درختان هفت ساله کیوی رقم هایوارد با سه تکرار در سال 1390 در شهر چالوس صورت پذیرفت. نتایج نشان داد که با افزایش کاربرد کود پتاسیم عملکرد م...

2003
LAURA E. WASYLENKI MICHAEL B. BAKER ADAM J. R. KENT EDWARD M. STOLPER

We present the results of melting experiments on a moderately depleted peridotite composition (DMM1) at 10 kbar and 1250±1390 C. Specially designed experiments demonstrate that liquids extracted into aggregates of vitreous carbon spheres maintained chemical contact with the bulk charge down to melt fractions of 0 02±0 04 and approached equilibrium closely. With increasing melt fraction, SiO2, F...

Journal: :Agricultural Science Digest – A Research Journal 2023

Background: Considering the high cost of fertilizers and adverse effect its overuse on environment soil health, proper organic manure-fertilizer recommendations basis test values, residual yield targets chilli becomes vital. Methods: Field experiment was carried out Periyanaickenpalayam series Inceptisol order at farmers holding, Dindigul, Tamil Nadu during 2021-2022 after establishment marked ...

2017
Quan Chen Zhifei Liu Catherine Kissel

The East Asian summer monsoon controls the climatic regime of an extended region through temperature and precipitation changes. As the East Asian summer monsoon is primarily driven by the northern hemisphere summer insolation, such meteorological variables are expected to significantly change on the orbital timescale, influencing the composition of terrestrial sediments in terms of both mineral...

Journal: :iranian journal of oil & gas science and technology 2014
iman mirzaie goodarzi mansour farzam mohammad reza shishesaz davood zaarei

the influence of increasing the sio2/k2o molar ratio on the electrochemical action of a waterbornepotassium silicate zinc-rich coating was investigated by means of electrochemical impedancespectroscopy (eis) and corrosion potential (ecorr) measurements. the eis results showed thatincreasing the sio2/k2o molar ratio in the range of 3.135 to 5 by the addition of nano-sio2 to theresins improved th...

2002
Nathan D. Sheldon Gregory J. Retallack Satoshi Tanaka

The degree of chemical weathering in soils increases with mean annual precipitation (P; mm) and mean annual temperature (T; C). We have quantified these relationships using a database of major-element chemical analyses of 126 North American soils. The most robust relationship found was between P and the chemical index of alteration without potash (CIA-K): with . Another strong relationship was ...

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