نتایج جستجو برای: 100 samples of soil taken from rhizosphere

تعداد نتایج: 21694561  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1392

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

ژورنال: علوم آب و خاک 2019

Despite the great importance of potassium applied as a fertilizer in the orange orchards, no information is currently available regarding the rate of potassium release from rhizosphere and the bulk soils of such trees. The objectives of this study were to investigate the weathering of micaceous minerals and their non-exchangeable K release and also, to examine the status of different forms of K...

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...

Journal: Journal of Nuts 2013
E. Mahdikhani Moghaddam H. Rouhani M. Falahati-Rastegar M. Houshiyarfard S. Malekzadeh Shafaroudi

During 2010 and 2011, Aspergillus species from section Flavi were isolated from rhizosphere in main peanut-growing region of Iran, Astaneh-e Ashrafiyeh, Guilan Province (northern Iran). The soil samples were taken from fruiting zone of peanuts in 3 districts and 10 locations, during the pod-filling period. The populations of Aspergillus section Flavi showed significant differences in cfu g-1 am...

Journal: :journal of agricultural science and technology 2010
e. pourjam w. bert

several soil samples were taken from western parts of iran. one of the samples col-lected from the rhizosphere of nectarine trees (prunus persica l.) in moghan, ardabil province, contained aprutides guidettii. the species subanguina picridis was recovered from leaf gall of serratula latifolia boiss (asteraceae) in the vicinity of mashhad, khorasan province. although this species showed remarkab...

Journal: :Polish journal of microbiology 2006
Hanna Rekosz-Burlaga Magdalena Garbolińska

Studies were carried out on the microflora of phyllosphere and soil rhizosphere of hulled (Chwat variety) and naked (Akt variety) oats. The material taken for study embraced samples of leaves and soil rhizosphere taken from cultivations differing in extent of nitrogen fertilization. The studies involved determination of total number of aerobic heterotrophic bacteria belonging to the genus Pseud...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1390

sange siyah dam is located two kilometers down the kabod khani village. the environ of ghorrve city in kurdestan province. this is an clay core dam. in this dam instrumentation is performed in three section and consist of electrical piezometers, total pressure cells, settlement cells and so on. the main objective of instrumentation is to control the behavior of dam body and foundation, end else...

2004
K. H. Söderberg A. Probanza A. Jumpponen E. Bååth

The composition of the microbial community in the rhizosphere was investigated using three different techniques: direct soil–phospholipid fatty acid (PLFA), cfu–PLFA (using culturable bacteria only) and community-level physiological profiles (CLPP) using Biolog GN microtitre plates. All three techniques showed that the rhizosphere bacterial community differed from the bulk soil community, when ...

Journal: :Applied and environmental microbiology 2001
K Smalla G Wieland A Buchner A Zock J Parzy S Kaiser N Roskot H Heuer G Berg

The bacterial rhizosphere communities of three host plants of the pathogenic fungus Verticillium dahliae, field-grown strawberry (Fragaria ananassa Duch.), oilseed rape (Brassica napus L.), and potato (Solanum tuberosum L.), were analyzed. We aimed to determine the degree to which the rhizosphere effect is plant dependent and whether this effect would be increased by growing the same crops in t...

Journal: :Microbes and environments 2009
Atsuya Sato Toshihiro Watanabe Yusuke Unno Erry Purnomo Mitsuru Osaki Takuro Shinano

The diversity of diazotrophic bacteria in the rhizosphere of Melastoma malabathricum L. was investigated by cloning-sequencing of the nifH gene directly amplified from DNA extracted from soil. Samples were obtained from the rhizosphere and bulk soil of M. malabathricum growing in three different soil types (acid sulfate, peat and sandy clay soils) located very close to each other in south Kalim...

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