نتایج جستجو برای: nutrient elements

تعداد نتایج: 343073  

Journal: :Sustainability 2021

The deficiencies of nutrient elements and inappropriate management practices in agricultural soils the world is one reasons for low crop productivity, reduced nutritional quality produce, animal/human malnutrition. We carried out present study to evaluate single multi-nutrient sulfur (S) micronutrients (zinc (Zn), boron (B), iron (Fe), copper (Cu) manganese (Mn)) India their effective achieve s...

Journal: :مدیریت خاک و تولید پایدار 0
سبحه نیک مهر دانشجوی کارشناسی ارشد دانشگاه ولی عصر رفسنجان عبدالرضا اخگر هیات علمی دانشگاه ولی عصر رفسنجان شهاب مداح حسینی هیات علمی دانشگاه ولی عصر رفسنجان وحید مظفری هیات علمی دانشگاه ولی عصر رفسنجان

phosphate solubilizing bacteria are a group of plant growth promoting rhizobacteria (pgpr) that increase growth and yield of plant by enhancing insoluble phosphates. in this study, a greenhouse experiment was carried out to investigate the effect of phosphate solubilizing bacteria and phosphorous fertilizer on the yield and chemical components of sesame. this experiment was conducted in factori...

Determination of soil chemical properties variability that affected tree tolerance to stresses can help to manage this environmental phenomenon. In this investigation, for detection of this variation trend, area of affected decline oak trees divided to four groups of control (without Oak decline), slight, middle and severe Oak decline based on tree and branch number per soil surface unit. In ea...

2014
Dimitri A. Sverjensky Brandon Harrison David Azzolini

Comprehensive quantitative theoretical evaluation of water–rock interactions in the Earth has long been restricted to a pressure of 5.0 kb – too low to address processes involving deep aqueous fluids. Yet such fluids are thought to play an important role in the long-term geologic cycling of many chemical elements. A reason for this restriction is the lack of information on the dielectric consta...

2009
Stephen M. Powers Emily H. Stanley Noah R. Lottig

Steady-state approaches to the study of stream nutrient processing have several limitations. Dynamic (time series) approaches are more flexible, and allow interpretation of nutrient additions introduced as unsteady slugs (pulses). We compared soluble reactive phosphorus (SRP) uptake metrics from experimental nutrient pulses modeled dynamically with those from continuous injections modeled with ...

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