Kazuyuki Inubushi
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View article: Effects of biochar amendment at various soil depths on maize roots and growth indices
Effects of biochar amendment at various soil depths on maize roots and growth indices Open
Biochar application in the soil has shown its potential for improved plant growth, root structure, and nutrient availability. However, uncertainties remain regarding the optimal depth for biochar application and its interaction with roots,…
View article: Influence of long-term livestock manure substitution on water erosion and labile organic carbon lateral loss on subtropical sloping croplands
Influence of long-term livestock manure substitution on water erosion and labile organic carbon lateral loss on subtropical sloping croplands Open
View article: A comparative study of fresh and residual biochar effects on wheat growth and yield metrics
A comparative study of fresh and residual biochar effects on wheat growth and yield metrics Open
Biochar is a highly stable carbon compound produced through pyrolysis, and it has been widely studied for its potential to enhance soil fertility and carbon sequestration. However, the impact of fresh and residual biochar is not thoroughly…
View article: Impact of fresh and residual biochar on physiological attributes and grain quality of wheat (Triticum aestivum L.)
Impact of fresh and residual biochar on physiological attributes and grain quality of wheat (Triticum aestivum L.) Open
This study aimed to investigate the effect of fresh and residual biochar on the physiological attributes and quality of wheat grain. The research trial was conducted in the field applied with fresh biochar (S1), one-season-old residual bio…
View article: Inhibitory Effects of Dicyandiamide and Neem (<i>Azadirachta indica</i>) on N Dynamics and Greenhouse Gas Emissions in Paddy Saline‐Sodic Soils: A Laboratory Study
Inhibitory Effects of Dicyandiamide and Neem (<i>Azadirachta indica</i>) on N Dynamics and Greenhouse Gas Emissions in Paddy Saline‐Sodic Soils: A Laboratory Study Open
Application of nitrification inhibitors (NIs) with nitrogen (N) fertilizer is an efficient way to increase soil N availability with minimum greenhouse gas (GHG) emissions from different soil types; however, there is scarce information for …
View article: Effect of Soil Acidification on Temperature Sensitivity of Soil Respiration
Effect of Soil Acidification on Temperature Sensitivity of Soil Respiration Open
Soil pH significantly impacts microbial activity and community assembly, which in turn determines the temperature sensitivity (Q10) of soil respiration. Due to the high soil acidification in China, it is necessary to understand how soil ac…
View article: Philip Charles Brookes, 23 March 1951 to 28 September 2023
Philip Charles Brookes, 23 March 1951 to 28 September 2023 Open
View article: Characteristics of the Amount of Water-Extractable Humic Substances in Water Extracted Organic Matter in Farmlands
Characteristics of the Amount of Water-Extractable Humic Substances in Water Extracted Organic Matter in Farmlands Open
土壌有機物中に含まれる腐植物質には様々な機能性があることが既存研究により示されてきた。本研究では水に溶ける有機成分(水溶性有機物)に着目し,これまで湖沼の水溶性有機物中の腐植物質分析で用いられてきたTsuda法を初めて土壌試料に適用し,農耕地土壌中の水溶性腐植物質を定量した。本研究で対象とした神奈川県内の農耕地土壌中の水溶性腐植物質量は,水溶性有機物量に比例することが本研究で初めて明らかとなった。また,水溶性有機物量は,作土層直下の次表層に比べて,概ね作土層で多く,水溶性腐…
View article: Ecosystem carbon dioxide exchange and water use efficiency in a triple-cropping rice paddy in Southern India: A two-year field observation
Ecosystem carbon dioxide exchange and water use efficiency in a triple-cropping rice paddy in Southern India: A two-year field observation Open
The lowland tropical triple-cropping rice system has unique characteristics that affect the hydrological, nutrient, and atmospheric environments. To better understand the ecosystem carbon and water dynamics of a triple-cropping rice paddy …
View article: The mass water content of paddy soil after harvest is strongly associated with the accumulation of organic matter as the source of available nitrogen
The mass water content of paddy soil after harvest is strongly associated with the accumulation of organic matter as the source of available nitrogen Open
Paddy soils are the dominant source of nitrogen for rice via mineralization, and knowledge about the available nitrogen (AN) in paddy soil is important for rice cultivation. Although the relationship between AN and soil physicochemical par…
View article: Comparison of soil characteristics related to C and N processes in Eastern Hungarian and Central Japanese soils under different land use and nutrient supply
Comparison of soil characteristics related to C and N processes in Eastern Hungarian and Central Japanese soils under different land use and nutrient supply Open
This comparative investigation aimed to evaluate controlling factors for the changes of chemical and microbial properties in soils taken from chemical fertilizer experiments carried out mainly in Chernozem and Andosol in Hungary and Japan,…
View article: The mass water content of paddy soil after harvest is strongly associated with the accumulation of organic matter as the source of available nitrogen
The mass water content of paddy soil after harvest is strongly associated with the accumulation of organic matter as the source of available nitrogen Open
Paddy soils are the dominant source of nitrogen for rice via mineralization, and knowledge about the available nitrogen (AN) in paddy soil is important for rice cultivation. Although the relationship between AN and soil physicochemical par…
View article: The mass water content of paddy soil after harvest is strongly associated with the accumulation of organic matter as the source of available nitrogen
The mass water content of paddy soil after harvest is strongly associated with the accumulation of organic matter as the source of available nitrogen Open
Paddy soils are the dominant source of nitrogen for rice via mineralization, and knowledge about the available nitrogen (AN) in paddy soil is important for rice cultivation. Although the relationship between AN and soil physicochemical par…
View article: The mass water content of paddy soil after harvest is strongly associated with the accumulation of organic matter as the source of available nitrogen
The mass water content of paddy soil after harvest is strongly associated with the accumulation of organic matter as the source of available nitrogen Open
Paddy soils are the dominant source of nitrogen for rice via mineralization, and knowledge about the available nitrogen (AN) in paddy soil is important for rice cultivation. Although the relationship between AN and soil physicochemical par…
View article: Effects of mire disturbance by Sika deer on nitrogen fixation and denitrification in Ozegahara Mire, Japan
Effects of mire disturbance by Sika deer on nitrogen fixation and denitrification in Ozegahara Mire, Japan Open
Ozegahara Mire is the largest alpine mire in Japan, and it has been preserved as the precious peatland ecosystem under oligotrophic condition. However, after the late 20 century, the mire has been exposed to ecosystem disturbance by invade…
View article: Physicochemical characteristics and nitrogen metabolism of the peat soil system in Ozegahara under the impacts of flooding
Physicochemical characteristics and nitrogen metabolism of the peat soil system in Ozegahara under the impacts of flooding Open
第4次尾瀬総合学術調査の一環として，尾瀬ヶ原泥炭土壌の物理・化学的性状と窒素代謝の調査が尾瀬湿原の39地点で行われた（2017年7月 ～ 2018年8月）。泥炭土壌はほぼ水飽和状態に近く，弱酸性で，NH4+，NO3-量の多い土壌は脱窒活性が高かった。河川流路に近いバンクホロー複合体の湿原凹地では，土壌の可給態リン量が多い湿原にヤチヤナギが高密度に分布すると共に，NO3-量，窒素代謝活性と酸化還元電位の変化が水位変化と密に関連していた。湿原凹地におけるヤチヤナギ窒素固定活動の…
View article: Mitigation of Climate Change by Nitrogen Managements in Agriculture
Mitigation of Climate Change by Nitrogen Managements in Agriculture Open
Soil is one of the important sources of nitrous oxide (N2O), which is generally producing through soil microbial processes, such as nitrification and denitrification. Agricultural soils receive chemical and organic fertilizers to maintain …
View article: Dynamics of Methane in Mangrove Forest: Will It Worsen with Decreasing Mangrove Forests?
Dynamics of Methane in Mangrove Forest: Will It Worsen with Decreasing Mangrove Forests? Open
Mangrove forests sequester a significant amount of organic matter in their sediment and are recognized as an important carbon storage source (i.e., blue carbon, including in seagrass ecosystems and other coastal wetlands). The methane-prod…
View article: &#160; Detecting &#160;rice inundation status for water saving and methane emission mitigation measures using Sentinel-1 & ALOS-2/PALSAR-2 Data
  Detecting  rice inundation status for water saving and methane emission mitigation measures using Sentinel-1 & ALOS-2/PALSAR-2 Data Open
<p>Approximately 90% of the world total paddies area and annual output of the rice production are concentrated in monsoon Asia, which has no more land/water resources for further expansion of cultivation. Most rice grows under lowlan…
View article: Alternate wetting and drying enhanced the yield of a triple-cropping rice paddy of the Mekong Delta
Alternate wetting and drying enhanced the yield of a triple-cropping rice paddy of the Mekong Delta Open
In the Mekong Delta, triple rice cropping is widely spread. The rice cultivation is characterized by a short cropping period and nearly year-round flooding. Putting the soil under an oxidative condition through changing the water regimes d…
View article: Legacy effect of elevated CO2 and N fertilization on mineralization and retention of rice (Oryza sativa L.) rhizodeposit-C in paddy soil aggregates
Legacy effect of elevated CO2 and N fertilization on mineralization and retention of rice (Oryza sativa L.) rhizodeposit-C in paddy soil aggregates Open
Rhizodeposits in rice paddy soil are important in global C sequestration and cycling. This study explored the effects of elevated CO2 and N fertilization during the rice growing season on the subsequent mineralization and retention of rhiz…
View article: Sustainable soil management in East, South and Southeast Asia
Sustainable soil management in East, South and Southeast Asia Open
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 achiev…
View article: Field Validation of the DNDC-Rice Model for Methane and Nitrous Oxide Emissions from Double-Cropping Paddy Rice under Different Irrigation Practices in Tamil Nadu, India
Field Validation of the DNDC-Rice Model for Methane and Nitrous Oxide Emissions from Double-Cropping Paddy Rice under Different Irrigation Practices in Tamil Nadu, India Open
Two-year field experiments were conducted at Tamil Nadu Rice Research Institute, Aduthurai, Tamil Nadu, India, to evaluate the effect of continuous flooding (CF) and alternate wetting and drying (AWD) irrigation strategies on rice grain yi…
View article: Response of corn plants (Zea mays L.) to application of zeolite coated urea as nitrogen slow release fertilizer
Response of corn plants (Zea mays L.) to application of zeolite coated urea as nitrogen slow release fertilizer Open
This research aims to determine the growth response of corn plants (Zea mays) given zeolite coated urea fertilizer as a nitrogen slow-release fertilizer. This research uses Randomized Group Design (RGD) with 3 repeats. The observation para…
View article: Long-term fertilizer management in NERICA cultivated upland affects on soil bio-chemical properties
Long-term fertilizer management in NERICA cultivated upland affects on soil bio-chemical properties Open
This study aims to characterize soil chemical properties and microbial biomass, greenhouse gas production, and organic matter dynamics in upland rice field as affected by the long-term fertilizer managements in Uganda. Soil total C (TC) an…
View article: Production of N<sub>2</sub>O, CO<sub>2</sub> gases and microbe responses in the soil amended with urea granulated zeolite
Production of N<sub>2</sub>O, CO<sub>2</sub> gases and microbe responses in the soil amended with urea granulated zeolite Open
This research study aims to determine the production of nitrous oxide (N 2 O), carbon dioxide (CO 2 ), the rate of ammonium-nitrate, microbe responses in soil following the addition of urea coated by zeolite under soil incubated. The resul…
View article: Correction to: Split N and P addition decreases straw mineralization and the priming effect of a paddy soil: a 100-day incubation experiment
Correction to: Split N and P addition decreases straw mineralization and the priming effect of a paddy soil: a 100-day incubation experiment Open
View article: Challenges of Japanese Society of Soil Science and Plant Nutrition
Challenges of Japanese Society of Soil Science and Plant Nutrition Open
View article: Management of Paddy Soil towards Low Greenhouse Gas Emissions and Sustainable Rice Production in the Changing Climatic Conditions
Management of Paddy Soil towards Low Greenhouse Gas Emissions and Sustainable Rice Production in the Changing Climatic Conditions Open
Climate change is a vital environmental issue for the twenty-first century, which may significantly affect rice productivity and accelerate greenhouse gas emissions from paddy ecosystem, which is of great environmental concern which is of …
View article: Density and Diversity of Microbial Symbionts under Organic and Conventional Agricultural Management
Density and Diversity of Microbial Symbionts under Organic and Conventional Agricultural Management Open
The influence of organic and conventional farming and agroecology on the diversity and functioning of indigenous soil microbial communities was examined using a multifactorial analysis based on an extended minimum data set of classical sta…