نتایج جستجو برای: rhizosphere one. in calcareous soils

تعداد نتایج: 17097802  

Journal: :تحقیقات آب و خاک ایران 0
نصرت اله نجفی دانشگاه تهران حسن توفیقی دانشکاه تهران

in a greenhouse experiment, changes in inorganic phosphorus fractions as well as their availability in the rhizosphere of rice (oryza sativa c.v. khazar) crop, following an application of 40 mg p (as monocalcium phosphate per kg of soil) were investigated in paddy soils north of iran. the study was performed as a 14×2 factorial in a completely randomized design of two factors namely: soil at 14...

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ژورنال: علوم و فنون کشت های گلخانه ای 2013
حسین‌پور, علیرضا , رئیسی, طاهره ,

The chemical conditions of the rhizosphere are known to considerably differ from those of the bulk soil, as a consequence of a range of processes that are induced either directly by the activity of plant roots or by the activity of rhizosphere microflora. Plant species have involved various adaptive strategies to acquire P from soil pools. Therefore, the objective of this research was to evalua...

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ژورنال: علوم و فنون کشت های گلخانه ای 2013
حسین‌پور, علیرضا , متقیان, حمیدرضا ,

Rhizosphere is a micro zone with profoundly different microbiological and chemical properties compared to the bulk soil, where availability and fractionation of zinc (Zn) may also vary from the bulk soil. This greenhouse research was performed to study the available Zn and its fractions in the bean rhizosphere and bulk soils of 10 calcareous soils using rhizobox. Total organic carbon (TOC), dis...

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ژورنال: علوم و فنون کشت های گلخانه ای 2015
حسین‌پور, علیرضا, متقیان, حمیدرضا,

Rhizosphere is a small zone with different biological and chemical properties from bulk soil. In this research, kinetics of zinc (Zn) release was compared in wheat (Rowshan Back Cross) rhizosphere and bulk soil in 10 calcareous soils by using rhizobox at greenhouse conditions. The rhizosphere and bulk soil samples were extracted with DTPA-TEA for 1 to 504 h at 25±1 0C. In addition, avail...

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Journal: :تحقیقات آب و خاک ایران 0
حمیدرضا متقیان دانشجوی دکتری خاک شناسی، دانشگاه شهرکرد علیرضا حسین پور استاد گروه خاک شناسی دانشکدة کشاورزی دانشگاه شهرکرد

abstract rhizosphere is a small zone with chemical, physical, and biological properties different from those of the bulk soil. information regarding the kinetics of cu release in the rhizosphere soil is scant. throughout this research, kinetics of cu release was investigated in wheat crop rhizosphere vs. non-rhizosphere in 10 calcareous soils by use of rhizobox and in greenhouse conditions. ext...

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Journal: :پژوهش های خاک 0
طاهره رئیسی دانشجوی سابق دکتری گروه علوم خاک، دانشکده کشاورزی، دانشگاه شهرکرد علیرضا حسین پور استاد گروه علوم خاک، دانشکده کشاورزی، دانشگاه شهرکرد

rhizosphere has different chemical and biological properties from the bulk soil. information about phosphorus (p) availability in the rhizosphere soils treated with municipal sewage sludge (mss) is limited. therefore, the objectives of this research were to evaluate the rhizospheric effects of wheat (triticum aestivum l.) on phosphorus availability and biological properties in 10 calcareous soi...

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Journal: :مدیریت خاک و تولید پایدار 0
طاهره رئیسی مؤسسه تحقیقات علوم باغبانی، پژوهشکده مرکبات و میوه های نیمه گرمسیری، سازمان تحقیقات، آموزش و ترویج کشاورزی، ساری، ایران. علیرضا حسین پور استاد گروه علوم خاک، دانشکده کشاورزی، دانشگاه شهرکرد

abstract the objectives of this research was to evaluate the rhizospheric effects of wheat (triticum aestivum l.) on the status of various inorganic p fractions and total organic p in 10 calcareous soils amended with 1% (w/w) municipal sewage sludge from the refinery of shahrekord city under rhizobox conditions. thus, wheat plant was planted in completely randomized design with three replicatio...

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Journal: :Sustainability 2023

Calcareous soils are known for their alkaline pH-promoting insoluble forms of certain nutrients, including phosphorus (P). Rhizosphere acidification is one the main physiological mechanisms mobilization by plants. However, specific and genotypic differences in response to P deficiency often observed, giving some genotypes particular tolerance abilities. This genetic potential gives us a new opp...

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Journal: :تحقیقات آب و خاک ایران 0
نصرت اله نجفی استادیار، دانشگاه تبریز حسن توفیقی دانشیار، پردیس کشاورزی و منابع طبیعی

effects of different soil moisture regimes and p application on available and inorganic p forms were studied in four paddy soils, north of iran. a factorial experiment in a completely randomized design with two replications was performed in a laboratory study. factors of soil at four levels (two acid and two alkaline-calcareous soils), soil moisture contents at three different levels (air-dry, ...

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Journal: :Journal of hazardous materials 2011
Tingqiang Li Zhenzhen Di Xiaoe Yang Donald L Sparks

Pot experiments were conducted to investigate the changes of the dissolved organic matter (DOM) in the rhizosphere of hyperaccumulating ecotype (HE) and non-hyperaccumulating ecotype (NHE) of Sedum alfredii and its effects on Zn and Cd sorption by soils. After planted with HE, soil pH in the rhizosphere reduced by 0.5-0.6 units which is consistent with the increase of DOM. The hydrophilic fract...

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