Iron–Manganese (Oxyhydro)oxides, Rather than Oxidation of Sulfides, Determine Mobilization of Cd during Soil Drainage in Paddy Soil Systems

2019 ◽  
Vol 53 (5) ◽  
pp. 2500-2508 ◽  
Author(s):  
Jing Wang ◽  
Ping-Mei Wang ◽  
Yi Gu ◽  
Peter M. Kopittke ◽  
Fang-Jie Zhao ◽  
...  
Keyword(s):  
Paddy Soil ◽  
Soil Drainage ◽  
Oxidation Of Sulfides ◽  
Soil Systems ◽  
Iron Manganese

Paddy soil drainage influences residue carbon contribution to methane emissions

2018 ◽  
Vol 225 ◽  
pp. 168-176 ◽  
Author(s):  
Azeem Tariq ◽  
Lars Stoumann Jensen ◽  
Bjoern Ole Sander ◽  
Stephane de Tourdonnet ◽  
Per Lennart Ambus ◽  
...  
Keyword(s):  
Paddy Soil ◽  
Methane Emissions ◽  
Soil Drainage ◽  
Carbon Contribution

Distribution of iron, manganese and phosphorus in the paddy soil profile

1960 ◽  
Vol 54 (3) ◽  
pp. 318-320 ◽  
Author(s):  
M. A. Islam ◽  
A. A. Choudhury
Keyword(s):  
Distribution Pattern ◽  
Paddy Soil ◽  
Paddy Field ◽  
Soil Profile ◽  
Soil Depth ◽  
Soil Surface ◽  
Soil Samples ◽  
Paddy Fields ◽  
Waterlogged Condition ◽  
Iron Manganese

Soils collected from paddy fields were kept in a waterlogged condition in glass cylinders with and without drainage. After about 2 months of waterlogging soil samples were collected from each cm. depths of the cylinders, both from the bright and dark sides of the cylinders. The soil samples were analysed for iron, manganese and phosphorus. At the beginning these elements were uniformly distributed throughout the entire soil depth, but as a result of waterlogging a distribution pattern developed. More of these elements concentrated on the surface and illuminated sides of the cylinders. It is assumed that such a phenomenon also occurs in the paddy field. These elements by concentrating on the soil surface limit the feeding zones to the top 3–5 cm. of the soil.

Solid Solution Effects and Deformation Micros trueture of Shock-Loaded Iron Manganese Alloys

1970 ◽  
Vol 28 ◽  
pp. 420-421
Author(s):  
A. Christou ◽  
J. V. Foltz ◽  
N. Brown
Keyword(s):  
Solid Solution ◽  
Shock Loading ◽  
High Strain ◽  
Local Stress ◽  
Strain Rates ◽  
Local Stress Concentration ◽  
Bcc Metals ◽  
Manganese Alloys ◽  
Iron Manganese ◽  
Transmission Microscope

In general, all BCC transition metals have been observed to twin under appropriate conditions. At the present time various experimental reports of solid solution effects on BCC metals have been made. Indications are that solid solution effects are important in the formation of twins. The formation of twins in metals and alloys may be explained in terms of dislocation mechanisms. It has been suggested that twins are nucleated by the achievement of local stress-concentration of the order of 15 to 45 times the applied stress. Prietner and Leslie have found that twins in BCC metals are nucleated at intersections of (110) and (112) or (112) and (112) type of planes.In this paper, observations are reported of a transmission microscope study of the iron manganese series under conditions in which twins both were and were not formed. High strain rates produced by shock loading provided the appropriate deformation conditions. The workhardening mechanisms of one alloy (Fe - 7.37 wt% Mn) were studied in detail.

Effect of long-term fertilization on archaeal community structure in cal-careous purplish paddy soil

2011 ◽  
Vol 19 (3) ◽  
pp. 369-376
Author(s):  
Gu Yunfu ◽  
Zhang Xiaoping ◽  
Tu Shihua ◽  
Lindström Kristina
Keyword(s):  
Community Structure ◽  
Paddy Soil ◽  
Archaeal Community

Diversity of Microbial Community of Paddy Soil Types in Double-Rice Crop-ping System

2010 ◽  
Vol 36 (5) ◽  
pp. 826-832
Author(s):  
Chuan-Deng YI ◽  
Li-Hong WANG ◽  
Xiao-Ping XIAO ◽  
Guang-Li YANG ◽  
Yue-Gao HU ◽  
...  
Keyword(s):  
Microbial Community ◽  
Paddy Soil ◽  
Rice Crop ◽  
Soil Types ◽  
Double Rice
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