An undisturbed core sampling and sectioning technique for wetland rice soils

1979 ◽  
Vol 10 (4) ◽  
pp. 775-783 ◽  
Author(s):  
N. K. Savant ◽  
S. K. De Datta
Keyword(s):  
Wetland Rice ◽  
Rice Soils ◽  
Core Sampling ◽  
Undisturbed Core

Soil Characteristics that Regulate Soil Reduction and Methane Production in Wetland Rice Soils

1997 ◽  
Vol 61 (5) ◽  
pp. 1526-1531 ◽  
Author(s):  
J. L. Gaunt ◽  
I. F. Grant ◽  
H. U. Neue ◽  
J. Bragais ◽  
K. E. Giller
Keyword(s):  
Methane Production ◽  
Soil Characteristics ◽  
Wetland Rice ◽  
Rice Soils

Wetland rice soils as sources and sinks of methane: a review and prospects for research

2000 ◽  
Vol 31 (6) ◽  
pp. 449-461 ◽  
Author(s):  
S. Kumaraswamy ◽  
Arun Kumar Rath ◽  
B. Ramakrishnan ◽  
N. Sethunathan
Keyword(s):  
Wetland Rice ◽  
Rice Soils ◽  
Sources And Sinks

scholarly journals Mineralization of soil organic nitrogen under waterlogged conditions in relation to other properties of tropical rice soils

Soil Research ◽  
1983 ◽  
Vol 21 (2) ◽  
pp. 133 ◽  
Author(s):  
KL Sahrawat
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Soil Properties ◽  
Total Nitrogen ◽  
Organic Nitrogen ◽  
Wetland Rice ◽  
Organic Carbon Content ◽  
Rice Soils ◽  
Wide Range ◽  
Mineralizable Nitrogen

The mineralizable nitrogen pool in wetland rice soils plays a dominant role in the nitrogen nutrition of rice even in fertilized paddies. There is a lack of information on how different soil properties affect ammonification of organic nitrogen in wetland rice soils. Surface samples of 39 diverse Philippine soils representing a wide range of pH, organic matter and texture were studied to determine the relationships between ammonification of organic nitrogen and soil properties. Simple correlation analysis showed that ammonium production was correlated highly significantly with total nitrogen (r = 0.94**), organic carbon (r = 0.91**) and C/N ratio (r = -0.46**), but it was not significantly correlated with cation exchange capacity, clay or pH. Multiple regression analayses showed that organic matter (organic carbon and total nitrogen) accounted for most of the variation in mineralizable nitrogen. These results suggest that organic carbon content is a good index of mineralizable nitrogen in tropical wetland rice soils.

Fluxes and pools of methane in wetland rice soils with varying organic inputs

1996 ◽  
Vol 42 (1-2) ◽  
pp. 163-173 ◽  
Author(s):  
R. Wassmann ◽  
H. U. Neue ◽  
M. C. R. Alberto ◽  
R. S. Lantin ◽  
C. Bueno ◽  
...  
Keyword(s):  
Wetland Rice ◽  
Rice Soils

Soil and plant tests for available sulfur in wetland rice soils

1982 ◽  
Vol 68 (1) ◽  
pp. 97-113 ◽  
Author(s):  
M. M. Islam ◽  
F. N. Ponnamperuma
Keyword(s):  
Wetland Rice ◽  
Rice Soils

Microbial biomass and organic matter turnover in wetland rice soils

1995 ◽  
Vol 19 (4) ◽  
pp. 333-342 ◽  
Author(s):  
J. L. Gaunt ◽  
H. -U. Neue ◽  
K. G. Cassman ◽  
D. C. Olk ◽  
J. R. M. Arah ◽  
...  
Keyword(s):  
Organic Matter ◽  
Microbial Biomass ◽  
Wetland Rice ◽  
Rice Soils ◽  
Organic Matter Turnover
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