نتایج جستجو برای: rhizosphere one in calcareous soils

تعداد نتایج: 17097802  

Journal: :تحقیقات آب و خاک ایران 0
عبداللطیف قلی زاده شیرمحمد معز اردلان محمدمهدی طهرانی حسین میرسید حسینی نجفعلی کریمیان

yazd asfordi phosphate rock (pr) was partially acidulated at five levels (0, 40, 60, 80, 100%) for increasing the relative agronomic effectiveness (rae) of canola (brassica napus l.), var. rgs in two calcareous and non-calcareous soils. the partially acidulated phosphate rock (papr) was compared vs. the standard fertilizer (triple superphosphate) in two levels (50 and 100 mg p/kg). this study w...

2018
Jordan G Hamilton Jay Grosskleg David Hilger Kris Bradshaw Trevor Carlson Steven D Siciliano Derek Peak

Adsorption and precipitation reactions often dictate the availability of phosphorus in soil environments. Tripolyphosphate (TPP) is considered a form of slow release P fertilizer in P limited soils, however, investigations of the chemical fate of TPP in soils are limited. It has been proposed that TPP rapidly hydrolyzes in the soil solution before adsorbing or precipitating with soil surfaces, ...

2013
M. Al-Qinna M. Salahat K. Mashal

Gravely calcareous soils cover approximately most of arid lands (in percent); however, the solute transport behavior in these soils remains a current issue. This research aimed at estimating and correlating the solute transport parameters in gravely calcareous soils as being affected by different land uses through the knowledge of the soil morphological, physical, and chemical properties. Four ...

Journal: :Environmental science and pollution research international 2015
Bashar Qasim Mikael Motelica-Heino Sylvain Bourgerie Arnaud Gauthier Domenico Morabito

This study aimed at assessing the effect of nitrogen addition under two forms, nitrate and ammonium, on the stabilization of Zn, Pb, and Cd by Populus euramericana Dorskamp grown in contaminated soils for 35 days under controlled conditions. Temporal changes in the soil pore water (SPW) were monitored for pH, dissolved organic carbon (DOC), and total dissolved concentrations of metals in the so...

Journal: :Environmental microbiology 2016
Shazia N Aslam Alex J Dumbrell Jamal S Sabir Mohammed H Z Mutwakil Mohammed M N Baeshen Salah E M Abo-Aba Dave R Clark Steven A Yates Nabih A Baeshen Graham J C Underwood Terry J McGenity

Although desert soils support functionally important microbial communities that affect plant growth and influence many biogeochemical processes, the impact of future changes in precipitation patterns on the microbiota and their activities is largely unknown. We performed in-situ experiments to investigate the effect of simulated rainfall on bacterial communities associated with the widespread p...

ناصر اصغرزاده, , رقیه حاجی‌بلند, , زهرا مهرفر, ,

A great number of studies have been conducted on the role of Azotobacter - a free living N2-fixer - in agricultural soils, but our information is lacking on the importance of Azotobacter in pasture soils. This research was conducted to study the relationship between ecological and edaphical factors with the population of the bacteria in soil. Soil samples were taken from two sites in Azarbaidja...

Journal: :Applied and environmental microbiology 2010
Christophe Calvaruso Marie-Pierre Turpault Elisabeth Leclerc Jacques Ranger Jean Garbaye Stéphane Uroz Pascale Frey-Klett

In acidic forest soils, availability of inorganic nutrients is a tree-growth-limiting factor. A hypothesis to explain sustainable forest development proposes that tree roots select soil microbes involved in central biogeochemical processes, such as mineral weathering, that may contribute to nutrient mobilization and tree nutrition. Here we showed, by combining soil analyses with cultivation-dep...

Journal: :International journal of phytoremediation 2016
Eréndira Carmona-Chit Rogelio Carrillo-González Ma Del Carmen A González-Chávez Heike Vibrans Laura Yáñez-Espinosa Adriana Delgado-Alvarado

Dispersion and runoff of mine tailings have serious implications for human and ecosystem health in the surroundings of mines. Water, soils and plants were sampled in transects perpendicular to the Santiago stream in Zimapan, Hidalgo, which receives runoff sediments from two acidic and one alkaline mine tailing. Concentrations of potentially toxic elements (PTE) were measured in water, soils (rh...

2002
Louis A. Schipper K. R. Reddy

Methane oxidation in the rhizosphere of wetland plants may significantly attenuate methane losses from wetland soils to the atmosphere. Our objective was to measure the extent of methane production and oxidation in the rhizosphere of a common wetland plant (Sagittaria landfolia L. Per.). Methyl fluoride (CH3F), a water-soluble gas and a specific inhibitor of methane oxidation, was used in conju...

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