نتایج جستجو برای: nutrient uptake

تعداد نتایج: 193565  

اوستان, شاهین, شیرمحمدی, ابراهیم, شیرمحمدی, بابک, علی اصغر زاد, ناصر, نجفی, نصرت اله,

Arbuscular mycorrhizal fungi (AMF) can affect their host plants growth through nutrient uptake enhancement. Determination of chelators (siderophores and phytosiderophores) in root leachates is of importance in order to account for the effects of AMF on nutrient uptake by plants. In this study, tomato plants were inoculated with either Glomus intraradices or Glomus etunicatum or left un-inoculat...

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...

2015
S. Bhattacherjee M. A. H. Chowdhury M. H. Rahman B. K. Saha

A pot experiment was carried out in the net house of Bangladesh Institute of Nuclear Agriculture (BINA) to study nutrient content and their uptake by different rice varieties (NERICA-1, NERICA-10 and BRRI dhan48) in response to different levels of arsenic (As) under varying moisture regimes. Three levels of As were added viz. 0, 30, 60 ppm to the pot soil from sodium arsenate (Na2HAsO4. 7H2O). ...

2001
Robert O. Hall Emily S. Bernhardt Gene E. Likens Brad Taylor

Streams control the timing and delivery of fluvial nutrient export from watersheds, and hydraulic processes such as transient storage may affect nutrient uptake and transformation. Although we expect that hydraulic processes that retain water will increase nutrient uptake, the relationship between transient storage and nutrient uptake is not clear. To examine this relationship, we injected a co...

2017
Smita Kumar Saurabh Verma Prabodh K. Trivedi

Plants require several essential mineral nutrients for their growth and development. These nutrients are required to maintain physiological processes and structural integrity in plants. The root architecture has evolved to absorb nutrients from soil and transport them to other parts of the plant. Nutrient deficiency affects several physiological and biological processes in plants and leads to r...

2016
Yaosheng Wang Kristian Thorup-Kristensen Lars Stoumann Jensen Jakob Magid

A number of root and root hair traits have been proposed as important for nutrient acquisition. However, there is still a need for knowledge on which traits are most important in determining macro- and micronutrient uptake at low soil fertility. This study investigated the variations in root growth vigor and root hair length (RHL) and density (RHD) among spring wheat genotypes and their relatio...

Journal: :Tree physiology 2008
Timothy J Albaugh H Lee Allen Thomas R Fox

We quantified nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) content, use (nutrient amount for one growth year), retranslocation (nutrients recycled before foliage senescence), uptake (use minus retranslocation), volume production per unit of uptake and fertilizer-uptake efficiency (percent applied taken up) in a 2 x 2 (nutrient and water) factorial experiment repl...

2012
Guojun Sheng Ann C Foley

The transfer of nutrients from the mother through the chorioallantoic placenta meets the nutritional needs of the embryo during human prenatal development. Although all amniotes start with a similar "tool kit" of extraembryonic tissues, an enormous diversity of extraembryonic tissue formation has evolved to accommodate embryological and physiological constraints unique to their developmental pr...

2014
Jūratė Lesutienė Elena Gorokhova Daiva Stankevičienė Eva Bergman Larry Greenberg

Periphyton communities of a boreal stream were exposed to different light and nutrient levels to estimate energy transfer efficiency from primary to secondary producers using labeling with inorganic (13)C. In a one-day field experiment, periphyton grown in fast-flow conditions and dominated by opportunistic green algae were exposed to light levels corresponding to sub-saturating (forest shade) ...

2010
Jeremy J. James Z. T. Aanderud

Invasion of nutrient-poor habitats might be related to the ability of a species to exploit nutrient-rich microsites. Recent research suggests fast-growing species might have a greater ability to allocate root biomass to nutrient-rich microsites (root foraging precision) than slow-growing species. We examined if differences in relative growth rate (RGR) between invasive and native species were r...

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