نتایج جستجو برای: nitrogen and phosphorous

تعداد نتایج: 16845547  

2014
S. Lalitha

Nitrogen is one of the major elements available to plants through biological nitrogen fixation, which has received much attention in recent years. The present study aims at improving tree legumes viz., Albizzia lebbeck, Pithecolobium dulce, Sesbania grandiflora, Albizzia amara, Enterolobium saman, Erythrina indica, Leucaena leucocephala, Acacia mellifera, Pongamia glabra and Acacia auriculiform...

The current study deals with the physicochemical characterization, temporal variability and trophic state evaluation of a post glacial mountain lake in eastern Himalaya during the period of 2014-2016. Notable seasonal variations are recorded for physicochemical parameters of lake water. The values for electrical conductivity, total suspended solids, total dissolved solids, total alkalinity and ...

Journal: :جنگل و فرآورده های چوب 0
جواد میرزایی هیات علمی دانشگاه ایلام

the research aims at studying the effects of mycorrhizal fungi (glomus fasciculatum, g. mosseae and mixed composition) on growth, photosynthesis and nutrient absorption of ziziphus spina-christi in mehran greenhouse, ilam province. the result showed that colonization rate in mixed treatment was more than pure treatment of g. fasciculatum and g. mosseae. also, root fresh weight, stomatal conduct...

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There are human and animal health concerns related to drainage systems because nutrients, especially nitrogen and phosphorus, can contaminate water supplies. A field study was conducted on consolidated paddy fields of Sari Agricultural Sciences and Natural Resources University, Northern Iran (36.3°N, 53.04°E), to determine the effect of subsurface drain depth and spacing on nitrogen (N) and pho...

Ali Mohammadi Torkashvand Fatemeh Ramezanzadeh Nazanin Khakipour

In order to investigate the effect of growth media and nutrition method on the growth of Bellis perennis L. and nutrients uptake, a factorial experiment was conducted with two factors: growth media (municipal waste compost, Azolla compost, tea wastes compost) and nutrition method (without fertilizer, soil application, foliar spray) in comparison to the control medium (60% soil + 20% manure + 10...

Journal: :به زراعی کشاورزی 0
لیلا محمدی دانشجوی کارشناسی ارشد، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران سعید ریزی استادیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد – ایران رحیم برزگر استادیار، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران

to evaluate the effect of arbuscular mycorrhiza (glomus mosseae) under salt stress on physiological and some nutrient absorption in new guinea impatiens (impatiens hawkeri), an experiment established in complete random design with three replications (three pots for each replication) in greenhouse in shahrekord university in 2014. treatments were inoculation of substrate with three levels of arb...

2002
Håkan Jönsson

Urine is the waste fraction from households which contains the largest amounts of nutrients. In Sweden it contains approximately 70% of the nitrogen and 50% of the phosphorous and potassium in all household waste and wastewater fractions. During the 1990-ies, urine separation has been thoroughly investigated in waterborne systems in Sweden. Measurements have shown that between 50% and 85% of th...

2005
Jack DeRuiter

Organic medicinal agents are compounds (molecules) composed of individual atoms linked via chemical bonds. The primary elements of OMAs are carbon (C) and hydrogen (H). Other elements found in lesser abundance in OMA structures include nitrogen (N), oxygen (O), sulfur (S), phosphorous (P) and halogens (F, Cl, Br, I). Examples of the contributions of these atoms in various drug molecules are sho...

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