Dynamics of microbial biomass nitrogen as influenced by organic matter application in paddy fields

Shibahara, Fujiyoshi; Yamamuro, Shigekazu; Inubushi, Kazuyuki

doi:10.1080/00380768.1998.10414437

Cited by 8 publications

(5 citation statements)

References 15 publications

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“…The related experiments show that mulching types affect both microbial abundance and composition (Wei et al, 2018b), and microorganisms in the soil can enhance the cycling of nutrients and improve their storage prospects (Shibahara et al, 1998). In our research, the diversity and richness of soil bacteria were higher in all mulch-treated samples, as found in previous studies (MeiyanWu et al, 2009).…”

Section: Discussionsupporting

confidence: 87%

Effects comparation of different mulching methods on soil in pitaya orchards

Luo¹,

Xu²,

Liu³

et al. 2021

Int. Agrophys.

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Section: Discussionsupporting

confidence: 87%

Effects comparation of different mulching methods on soil in pitaya orchards

Luo¹,

Xu²,

Liu³

et al. 2021

Int. Agrophys.

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“…Larger amounts of microbial biomass in paddy soil were usually found in the surface layer than in subsurface layers (Shibahara & Inubushi, 1995; Shibahara et al , 1998). Larger amounts of soil microbial biomass C in the surface layer were also found in Andosol paddy fields, where the first rice FACE project in the world was carried out during 1998–2000 in Shizukuishi (Inubushi et al , 2001; Hoque et al , 2002).…”

Section: Resultsmentioning

confidence: 99%

“…Microbial biomass is an important nutrient pool, especially for nitrogen (N) in upland and paddy soils (Jenkinson & Ladd, 1981; Inubushi et al , 1991, 2002a; Shibahara & Inubushi, 1995; Shibahara et al , 1998). Microbial biomass can also be a more sensitive early‐warning indicator than total soil organic matter for predicting environmental impacts such as effects of increasing concentrations of greenhouse gases on soil ecosystems, rising temperature, farmers' practices, etc., in upland (Powlson et al , 1987) and paddy soils (Hoque et al , 2001).…”

Section: Introductionmentioning

confidence: 99%

Microbial biomass carbon and methane oxidation influenced by rice cultivars and elevated CO₂ in a Japanese paddy soil

Inubushi

Cheng

Mizuno

et al. 2010

European J Soil Science

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Microbial biomass carbon (C) and methane oxidation activity influenced by rice cultivars and elevated atmospheric CO 2 were investigated in a microcosm experiment in two controlled-environment chambers with CO 2 concentrations at 370 μl l −1 (ambient) and 570 μl l −1 (elevated). Four rice cultivars were grown in sandy paddy soil in this experiment; these were IR65598, IR72, Dular and Koshihikari. Soil microbial biomass C under elevated CO 2 was significantly larger (by 18.9-25.2%) than that under ambient CO 2 , and varied with the cultivars in the sequence IR72 > Dular > IR65598 > Koshihikari. Methane oxidation activity in the soil also differed among the cultivars, in the sequence IR72 > Dular > Koshihikari > IR65598, but was larger under elevated CO 2 than under ambient CO 2 only with IR72. Methane oxidation activity was positively correlated with microbial biomass C among four cultivars under two CO 2 conditions. This study indicated that microbial biomass C in paddy soil varied among the rice varieties examined, but was increased significantly by elevated CO 2 and correlated with methane oxidation, which may in turn influence methane emission to the atmosphere.

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“…However, the ratio of N uptake to biomass N varied depending on soil type, and decreased with the application of organic matter (Inubushi et al 1997a). The turn-over rate of nitrogen in microbial biomass in paddy soil was much faster in Japan and the Philippines (Inubushi and Watanabe 1986;Shibahara, Yamamuro, and Inubushi 1998) than it was in upland soils in Japan (Sakamoto and Hodono 2000) and the UK (Jenkinson and Ladd 1981) during the growing season.…”

Section: Quantification Of Microbial Biomass In Japanese and Philippine Paddy Soilsmentioning

confidence: 95%

Sustainable soil management in East, South and Southeast Asia

Inubushi

2020

Soil Science and Plant Nutrition

Self Cite

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The 2030 Agenda was promulgated for the Sustainable Develop Goals (SDGs), which consist of 17 goals created to eradicate poverty and realize a more sustainable world. Among the goals, soil science can contribute significantly toward achieving zero hunger (#2), implementing climate action (#13), bettering life on land (#15), among others. Paddy fields are important sustainable agro-ecosystems for rice (Oryza sativa) production, and rice is the staple food for more than 2 billion people worldwide. Paddy rice is produced mainly in East, South, and Southeast Asia, in region with a monsoon climate. Paddy soils are unique, as they are mostly managed under waterlogged conditions during the rice-growing season. Nitrogen (N) is one of the most important nutrients for many crops, including rice. Some potential sustainable soil management methods are suggested to meet the SDGs, especially in paddy fields and wetlands in East, South, and Southeast Asia, based on current achievements, including N mineralization analysis, soil microbial analysis, and greenhouse gas measurements, to predict soil fertility and effective environmental management practices in the future. One such example of sustainable soil management practice is the amendment of silicate fertilizer produced from steel-making sludge that reduced methane emission from paddy fields (3%-50%) and increased the rice yield in Vietnam.

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Dynamics of microbial biomass nitrogen as influenced by organic matter application in paddy fields

Cited by 8 publications

References 15 publications

Effects comparation of different mulching methods on soil in pitaya orchards

Effects comparation of different mulching methods on soil in pitaya orchards

Microbial biomass carbon and methane oxidation influenced by rice cultivars and elevated CO₂ in a Japanese paddy soil

Sustainable soil management in East, South and Southeast Asia

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Dynamics of microbial biomass nitrogen as influenced by organic matter application in paddy fields

Cited by 8 publications

References 15 publications

Effects comparation of different mulching methods on soil in pitaya orchards

Effects comparation of different mulching methods on soil in pitaya orchards

Microbial biomass carbon and methane oxidation influenced by rice cultivars and elevated CO2 in a Japanese paddy soil

Sustainable soil management in East, South and Southeast Asia

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Product

Resources

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Microbial biomass carbon and methane oxidation influenced by rice cultivars and elevated CO₂ in a Japanese paddy soil