Methane emissions associated with a green manure amendment to flooded rice in California

1994 ◽  
Vol 24 (2) ◽  
pp. 53-65 ◽  
Author(s):  
J. G. Lauren ◽  
G. S. Pettygrove ◽  
J. M. Duxbury
Keyword(s):  
Green Manure ◽  
Methane Emissions ◽  
Flooded Rice

Yield-scaled global warming potential of annual nitrous oxide and methane emissions from continuously flooded rice in response to nitrogen input

2013 ◽  
Vol 177 ◽  
pp. 10-20 ◽  
Author(s):  
Cameron M. Pittelkow ◽  
Maria A. Adviento-Borbe ◽  
James E. Hill ◽  
Johan Six ◽  
Chris van Kessel ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Global Warming ◽  
Global Warming Potential ◽  
Methane Emissions ◽  
Nitrogen Input ◽  
Flooded Rice

scholarly journals Response of Wetland Taro Yield and Weeds to Preplant Establishment of Azolla in Hawaii

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 912F-912
Author(s):  
Joseph DeFrank
Keyword(s):  
Phosphoric Acid ◽  
Green Manure ◽  
Dry Weight ◽  
Weed Suppression ◽  
Symbiotic Relationship ◽  
Seeding Rate ◽  
Azolla Filiculoides ◽  
Blue Green Algae ◽  
Nursery Pond ◽  
Flooded Rice

Azolla (Azolla filiculoides) is a floating fern that maintains a symbiotic relationship with an N-fixing blue-green algae. In many parts of Asia, azolla is used as a green manure in flooded rice cultivation. Taro (Colocasia esculenta) grown under flooded conditions is used to produce a traditional Hawaiian staple, poi. Azolla has been present in Hawaii for many years, but is not used in a controlled way for either nutrient augmentation of production sites or weed suppression. In this experiment, azolla was removed from a stream on the island of Kauai and multiplied in a nursery pond. Phosphoric acid was added to the nursery pond as a nutrient (P = 5 ppm) at 5-day intervals to accelerate azolla growth. Azolla was moved from the nursery pond and added to taro production plots at a seeding rate of 488 kg·m–2. Phosphoric acid was used in production plots to hasten coverage of the water surface by azolla. Ten days after azolla inoculation, production plots were covered and taro seed pieces were planted. Weed dry weights from conventional and azolla covered plots were recorded 91 days after taro planting. Taro corms were harvested 315 days after planting. Weed dry weight in azolla plots was 86% less than conventional plots. Azolla delayed taro maturity, causing a 41% reduction in marketable corm yield.

Leguminous green manure mitigates methane emissions in paddy field by regulating acetoclastic and hydrogenotrophic methanogens

2022 ◽  
Vol 108 ◽  
pp. 103380
Author(s):  
Abdulkareem Raheem ◽  
Tianshu Wang ◽  
Jing Huang ◽  
Frederick Danso ◽  
Oluwaseyi Oyewale Bankole ◽  
...  
Keyword(s):  
Paddy Field ◽  
Green Manure ◽  
Methane Emissions ◽  
Hydrogenotrophic Methanogens

Impact of nitrogen fertilizers on methane emissions from flooded rice

2016 ◽  
Vol 1 (02) ◽  
pp. 124-128
Author(s):  
Arti Bhatia ◽  
Sandeep K. Malyan ◽  
Ritu Tomer ◽  
Om Kumar
Keyword(s):  
Ammonium Sulfate ◽  
Block Design ◽  
Methane Flux ◽  
Fertilizer Application ◽  
Methane Emissions ◽  
Nitrogen Fertilizers ◽  
Rice Soils ◽  
Flooded Rice ◽  
Randomized Complete Block Design ◽  
Sulfate Application

Methane is second most potent greenhouse gas emitted under anaerobic condition in rice soils. Effects of different nitrogen fertilizer application on methane emissions in flooded paddy field were studied. The experiment was laid out in a randomized complete block design with three treatments and three replications. The treatments were control (0 kg N ha-1), urea (120 kg N ha-1) and ammonium sulfate (120 kg N ha-1). In all treatments P (60 kg P2O5 ha-1) along with K (40 kg K2O ha-1) were also applied as basal dose. The cumulative seasonal methane flux was highest in urea 36.3 (kg ha-1) followed by control 35.2 (kg ha-1) and ammonium sulfate 28.5 (kg ha-1). Ammonium sulfate application reduced total seasonal emission by 19.5% as compared to control while it reduced CH4 emissions by 21.6% as compared to urea application. On the basis of this study we can conclude that application of ammonium sulfate is an effective tool for mitigating methane emissions from rice soils.

Rational utilization of leguminous green manure to mitigate methane emissions by influencing methanogenic and methanotrophic communities

Geoderma ◽  
2020 ◽  
Vol 361 ◽  
pp. 114071 ◽  
Author(s):  
Guopeng Zhou ◽  
Songjuan Gao ◽  
Changxu Xu ◽  
Fugen Dou ◽  
Katsu-yoshi Shimizu ◽  
...  
Keyword(s):  
Green Manure ◽  
Methane Emissions ◽  
Rational Utilization ◽  
Methanotrophic Communities

scholarly journals Impact of Nitrogen Fertilizers on Methane Emissions from Flooded Rice

2016 ◽  
Vol 11 (3) ◽  
pp. 846-850 ◽  
Author(s):  
Sandeep K. Malyan ◽  
Arti Bhatia ◽  
Om Kumar ◽  
Ritu Tomer
Keyword(s):  
Ammonium Sulfate ◽  
Block Design ◽  
Methane Flux ◽  
Fertilizer Application ◽  
Methane Emissions ◽  
Nitrogen Fertilizers ◽  
Rice Soils ◽  
Flooded Rice ◽  
Randomized Complete Block Design ◽  
Sulfate Application

Methane is second most potent greenhouse gas emitted under anaerobic condition in rice soils. Effects of different nitrogen fertilizer application on methane emissions in flooded paddy field were studied. The experiment was laid out in a randomized complete block design with three treatments and three replications. The treatments were control (0 kg N ha-1), urea (120 kg N ha-1) and ammonium sulfate (120 kg N ha-1). In all treatments P (60 kg P2O5 ha-1) along with K (40 kg K2O ha-1) were also applied as basal dose. The cumulative seasonal methane flux was highest in urea 36.3 (kg ha-1) followed by control 35.2 (kg ha-1) and ammonium sulfate 28.5 (kg ha-1). Ammonium sulfate application reduced total seasonal emission by 19.5% as compared to control while it reduced CH4 emissions by 21.6% as compared to urea application. On the basis of this study we can conclude that application of ammonium sulfate is an effective tool for mitigating methane emissions from rice soils.

Dynamics of Dissolved Organic Carbon and Methane Emissions in a Flooded Rice Soil

2000 ◽  
Vol 64 (6) ◽  
pp. 2011-2017 ◽  
Author(s):  
Yahai Lu ◽  
Reiner Wassmann ◽  
Heinz-Ulrich Neue ◽  
Changyong Huang
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Methane Emissions ◽  
Rice Soil ◽  
Flooded Rice ◽  
Flooded Rice Soil
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