Higher soil organic carbon accumulation in subsoil layer by 37-years combined application of inorganic fertilizers with manure than with rice straw in a double-rice paddy soil

2021 ◽  
Author(s):  
Yajie Gao ◽  
Yanhong Lu ◽  
Yulin Liao ◽  
Jun Nie
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Rice Straw ◽  
Paddy Soil ◽  
Rice Paddy ◽  
Carbon Accumulation ◽  
Rice Paddy Soil ◽  
Inorganic Fertilizers ◽  
Combined Application ◽  
Double Rice

Response of paddy soil organic carbon accumulation to changes in long-term yield-driven carbon inputs in subtropical China

2016 ◽  
Vol 232 ◽  
pp. 302-311 ◽  
Author(s):  
Anlei Chen ◽  
Xiaoli Xie ◽  
Maxim Dorodnikov ◽  
Wei Wang ◽  
Tida Ge ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Paddy Soil ◽  
Carbon Accumulation ◽  
Subtropical China

Effect of a urea and urease/nitrification inhibitor combination on rice straw hydrolysis and nutrient turnover on rice growth

BioResources ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. 3059-3074
Author(s):  
Chunxiao Yu ◽  
Lili Zhang ◽  
Lijie Yang ◽  
Wei Bai ◽  
Chen Feng ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Rice Straw ◽  
Microbial Biomass Carbon ◽  
Nitrification Inhibitor ◽  
Carbon Accumulation ◽  
Nitrification Inhibitors ◽  
Above Ground Biomass ◽  
Carbon And Nitrogen ◽  
Ground Biomass

Stabilized fertilizers that contain nitrification inhibitors and/or urease inhibitors are widely used in China. A pot experiment was conducted to analyze soil enzymatic characteristics related to carbon and nitrogen turnover and metabolism under the use of rice straw and stabilized fertilizer. Results showed that stabilized fertilizer exhibited the highest yield production, panicle numbers, and above-ground biomass. Compared with urea treatment with straw, adding inhibitors reduced soil organic carbon and the enzyme activity related to acquisition of carbon, but increased soil organic carbon accumulation, rice yield, and above-ground biomass. Stabilized fertilizer increased protease activity; however, it decreased N-acetyl-β-glucosaminide. Addition of straw significantly increased dissolved organic and microbial biomass carbon or nitrogen, as well as the enzyme activities of α-D-glucosidase, β-D-glucosidase, β-N-acetyl-glucosidase, and cellulase at the seedling and tillering stages. The principal components analysis showed that the synthesis of extracellular enzyme related to carbon and nitrogen acquiring act as a proxy for straw decomposing under nitrogen conditions. The combination delayed the release of ammonia, which affected the carbon and nitrogen coupling by microbial organisms. These results demonstrated a relationship between soil carbon and nitrogen dynamics and soil enzymes in different fertilization management.

scholarly journals Winter cover crops alter methanotrophs community structure in a double-rice paddy soil

2016 ◽  
Vol 15 (3) ◽  
pp. 553-565 ◽  
Author(s):  
Jing-na LIU ◽  
Bo ZHU ◽  
Li-xia YI ◽  
Hong-cui DAI ◽  
He-shui XU ◽  
...  
Keyword(s):  
Community Structure ◽  
Cover Crops ◽  
Paddy Soil ◽  
Rice Paddy ◽  
Rice Paddy Soil ◽  
Winter Cover ◽  
Winter Cover Crops ◽  
Double Rice

Multivariate regression analysis of greenhouse gas emissions associated with activities and populations of soil microbes in a double-rice paddy soil

2012 ◽  
Vol 32 (6) ◽  
pp. 1811-1819
Author(s):  
秦晓波 QIN Xiaobo ◽  
李玉娥 LI Yu'e ◽  
石生伟 SHI Shengwei ◽  
万运帆 WAN Yunfan ◽  
纪雄辉 JI Xionghui ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Paddy Soil ◽  
Multivariate Regression ◽  
Soil Microbes ◽  
Rice Paddy ◽  
Multivariate Regression Analysis ◽  
Rice Paddy Soil ◽  
Double Rice
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