Faculty Profiles - MAEDA Morihiro

Papers - MAEDA Morihiro

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少量多頻度灌水施肥が促成ナスの根と養分の畝内分布の推移に及ぼす影響 Reviewed

速水悠,前田守弘

日本土壌肥料学雑誌 91 ( 1 ) 25 - 32 2020.2

Factors affecting 137Cs concentration in wild plants and soils of different land use in Iitate village after the Fukushima nuclear power plant accident Reviewed

Wakai, N, Yamashita, J, Enomoto, T, Hanafusa, T, Ono, T, Maeda.M

Radiation Safety Management 18 1 - 8 2019

RADIOCESIUM CONCENTRATION IN STEMS, LEAVES, AND PANICLES OF RICE GROWN IN A SANDY SOIL REPLACEMENT PADDY FIELD TREATED WITH DIFFERENT RATES OF CATTLE MANURE COMPOST IN KAWAMATA, FUKUSHIMA Reviewed

Nittaya WAKAI, Morihiro MAEDA, Toshiro ONO, Tadashi HANAFUSA, Jun YAMASHITA, Kuniyuki SAITOH

Journal of Environmental Science for Sustainable Society 9 1 - 10 2019

塩類集積土壌における残存硝酸態窒素と土壌水分がナス台木の初期生育に及ぼす影響 Reviewed

日本土壌肥料学雑誌 89 ( 3 ) 204 - 212 2018.6

Phosphorus and potassium availability from cattle manure ash in relation to their extractability and grass tetany hazard Reviewed

Quoc Thinh Tran, Morihiro Maeda, Kazuyuki Oshita, Masaki Takaoka, Kuniyuki Saito

Soil Science and Plant Nutrition 64 ( 3 ) 415 - 422 2018.5

Nitrous Oxide and Carbon Dioxide Emissions from Vietnamese Soil Amended with Different Compost Types at High Temperature Reviewed

Van Ngoc Tuong Hoang, Morihiro Maeda

Communications in Soil Science and Plant Analysis 49 ( 7 ) 848 - 861 2018.4

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Taylor and Francis Inc.

This study aims to determine the effects of compost additions and high temperature on N2O and CO2 emissions from a Vietnamese agricultural soil. Soil samples amended with two compost types (commercial compost, SH and chicken compost, CC) at three rates of 1%, 2% and 4% w/w were aerobically incubated at 25°C, 30°C and 35°C for 28 days in the laboratory. N2O and CO2 emissions were determined on days 1, 3, 5, 7, 14, 21 and 28. Our results showed that N2O and CO2 emissions were significantly affected by temperature, compost additions, and their interactions. Greater N2O and CO2 emissions were seen in CC treatments than SH treatments. Higher application rates of CC led to greater N2O and CO2 emissions. In SH treatments, higher temperature lowered N2O emissions but did not affect CO2 emissions. N2O and CO2 emissions were enhanced with CC addition while they showed different responses to increasing temperature.

DOI： 10.1080/00103624.2018.1435796

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カスケード利用とユーザー視点導入による下水処理場の価値向上～消化汚泥の肥料利用を例として～ Invited

藤原拓, 井上大介, 前田守弘, 山根信三, 野村洋平, Jia Sijing, Kai Cao

41 ( 5 ) 50 - 54 2018.4

Effects of cultivation period on catch crop chemical composition and potential for bioenergy production Reviewed

S. Akao, D. Yasutake, K. Kondo, H. Nagare, M. Maeda, T. Fujiwara

Industrial Crops and Products 111 787 - 793 2018.1

Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier B.V.

The first step in biofuel and/or bio-based bulk chemical material production is assessing the amounts of useful substances in a potential biomass. Sugar, nutrients, ash, and functional ingredients (such as antioxidant compounds) in premature dent corn biomass cultivated as a catch crop (plant density
60 shoots m−2) over different cultivation periods (29 days, 49 days, 83 days) were investigated. The sugar recovery amount was estimated by multiplying two regression curves (saccharification efficiency curve, quadratic regression curve
dry weight growth curve, Gompertz curve). A simple economic analysis for ethanol production from the catch crop biomass was also carried out using previously reported process costs and the estimated sugar recovery amount. High plant density led to accumulation of plant biomass providing high amounts of plant dry weight and derived sugars per unit area. About 2700 g DW m−2 (about 1400 g sugar m−2) was harvested in the 49-day cultivation. The amount is significant compared with biomass yields of other candidates for energy crops. The estimated sugar recovery amount reached its maximum value near the end of experimental period (79-day cultivation). The longer cultivation period was better for sugar recovery although there was a slight decrease in saccharification efficiency with cultivation time. Based on the economic analysis, a higher ethanol price (about 200% higher than the current wholesale price) would be required for catch crop financial independence with around 50-day cultivation. Production of ethanol from catch crop biomass would not be feasible in the current situation. However, condensed biomass production through catch crops is still attractive and requires further research.

DOI： 10.1016/j.indcrop.2017.11.039

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Phosphorus and potassium availability from cattle manure ash in relation to their extractability and grass tetany hazard Reviewed

Tran, Q.T, Maeda, M, Oshita, K, Takaoka, M, Saito, K

Soil Science and Plant Nutrition 63 ( 4 ) 369 - 376 2018

Interactive effects of ammonium application rates and temperature on nitrous oxide emission from tropical agricultural soil Reviewed

Hoang, V.N.T, Maeda, M

Soil Science and Plant Nutrition 64 ( 6 ) 767 - 773 2018

Effects of a washing process of cattle manure ash onshoot and root growth of komatsuna (Brassica rapa var. perviridis) at theseedling stage Reviewed

Tran,Q.T., Maeda, M., Oshita, K., Takaoka, M., Fujiwara,T

Journal of Environmental Science for Sustainable Society 8 15 - 21 2018

Nitrous oxide and carbon dioxide emissions from agricultural soil amended with different types of biochar at three temperatures Reviewed

Hoang V.N.T, Maeda M

Journal of Environmental Science for Sustainable Society 8 22 - 31 2018

Eggplant roots and nutrient distribution in the ridge in two greenhouses with solar-mediated or timer controlled-fertigation Reviewed

88 ( 5 ) 435 - 440 2017

Phosphorus release from cattle manure ash as soil amendment in laboratory-scale tests Reviewed

Quoc Thinh Tran, Morihiro Maeda, Kazuyuki Oshita, Masaki Takaoka

SOIL SCIENCE AND PLANT NUTRITION 63 ( 4 ) 369 - 376 2017

Language：English Publishing type：Research paper (scientific journal) Publisher：TAYLOR & FRANCIS LTD

Excessive application of animal manure to farmland leads to phosphorus (P) loss into the surrounding water. Manure is incinerated to convert it to P-rich ash as a slow-release P fertilizer. However, the potential P loss and P availability for plants from cattle manure ash (CMA) have not been fully understood. The aims of this study were to determine the P release mechanism from CMA and to propose appropriate application rates that mitigate P loss and increase available P to soil in Fukushima, where the soil is deficient in nutrients after the replacement of cesium-137-contaminated soil with sandy mountain soil. Different P fractions in CMA were sequentially extracted with H2O, 0.5M NaHCO3, 0.1M NaOH, and 1M HCl. Phosphorus contents in different fractions of CMA were in the order of HCl-P>NaHCO3-P>H2O-P>NaOH-P. Water-soluble P release of CMA was also determined by kinetic experiments for 120h. Results showed that total water-soluble P accounted for a maximum of 2.9% of total P in CMA over 120h due to recalcitrant P compounds formed through incineration. The Fukushima sandy soil amended with CMA at three application rates, 94, 157, and 314mgPkg(-1) (corresponding to 300, 500, 1000kgP(2)O(5)ha(-1)) was incubated for 56days. Cattle manure compost and KH2PO4 were applied at 157mgPkg(-1) for comparison. Phosphorus release in water and CaCl2 solution from ash-amended soil was significantly lower than those from compost and KH2PO4-amended soil at the same P application rate of 157mgPkg(-1) (p<0.05). Available P in ash-amended soil, determined by Fe-oxide impregnated strips, was not significantly different from those in compost-amended soil after day 7 and KH2PO4-amended soil on day 56 at the same P application rate. Thus, CMA reduces P losses from soil to the surrounding water while it increases P availability for plants. In comparison of different rates of CMA, P release in water or CaCl2 was significantly greater at 314mgPkg(-1) than at 94 or 157mgPkg(-1), while the percentage of available P to total P was the lowest at the highest application rate (p<0.05), suggesting that the best application rates were 94 and 157mgPkg(-1) in this experiment.

DOI： 10.1080/00380768.2017.1355217

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Phosphorus sorption kinetics and sorption capacity in agricultural drainage ditch sediments in reclaimed land, Kasaoka Bay, Japan Reviewed

H. V. Nguyen, M. Maeda

WATER QUALITY RESEARCH JOURNAL OF CANADA 51 ( 4 ) 388 - 398 2016.11

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：IWA PUBLISHING

Equilibrium analysis is essential to evaluate sorption capacity and to determine whether sediment acts as a source or sink of phosphorus ( P). This study was carried out to determine whether or not the sediment in drainage ditches acts as a source or sink of P, evaluate phosphorus sorption kinetics, and determine the potential P sorption by using the Langmuir isotherm sorption model. Surface sediment ( 0-10 cm) and the overlying water were collected from three drainage ditches for the experiments. Results showed that the drainage ditch that was the most contaminated with P had the highest sediment zero-equilibrium phosphorus concentration ( EPC0). Because sediment EPC0 of the three ditches was higher than water P concentration, they acted as a sink of P across the sediment interface. The kinetic sorption of sediments consisted of two stages that were quick and slow, regardless of the sampling sites. The amounts of P sorbed to sediments at equilibrium ( Q(e)) ranged from 50.8 to 77.5 mg kg(-1). Phosphorus sorption capacity ( Q(max)) of sediments ranged from 447.0-493.8 mg kg(-1) with the constant related to binding energy ( K) ( 0.140-0.171 L mg(-1)). The results from this study indicate the importance of ditch sediment in controlling P dynamics in discharge from agricultural farms.

DOI： 10.2166/wqrjc.2016.019

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Removal of phosphorus from water by using volcanic ash soil (VAS): batch and column experiments Reviewed

Huy Van Nguyen, Morihiro Maeda

WATER SCIENCE AND TECHNOLOGY 74 ( 6 ) 1326 - 1334 2016.9

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：IWA PUBLISHING

Using low-cost and naturally available materials is considered an optimal adsorbent for removing phosphorus (P) from water due to its simplicity and economic efficiency. This study examined the removal of P from water using volcanic ash soil (VAS) by batch and column experiments. The maximum adsorption capacity of P was 2.94 mg g(-1), estimated from the batch experiment according to a Langmuir isotherm. The column study showed a higher adsorption capacity of 5.57 mg g(-1). The breakthrough curve showed that influent water containing 2 mg L-1 P was completely purified by VAS within 1,230 pore volumes (PV). The breakthrough and saturation points of the curves were 3,100 PV and 14,875 PV, respectively. After an adsorption column was loaded with 20,508 PV, a regeneration procedure was developed to determine whether an ion exchange of P with chloride occurred or adsorbed P in the columns could be eluted. Approximately 20% of P was recovered from columns by desorption tests, regardless of NaCl solution or deionized water. Specific surface area and mineral concentrations are both important characteristics that improve the adsorption capacity of VAS. The present study suggests that VAS is a promising adsorbent to remove P in water.

DOI： 10.2166/wst.2016.297

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Non-sterile simultaneous saccharification and fermentation of corn leaves and stalks to l-lactic acid without external nutrient addition Reviewed

Satoshi Akao, Hideaki Nagare, Morihiro Maeda, Keisuke Kondo, Taku Fujiwara

JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT 18 ( 2 ) 208 - 214 2016.4

Language：English Publishing type：Research paper (scientific journal) Publisher：SPRINGER

Fermentation of lignocellulosic biomass requires auxiliary materials, including nutrients, to ensure the proliferation of microorganisms. Nutrients are usually inexpensive, but their contribution to the cost is considerable because of the very low prices of fermentation products, such as bio-ethanol. Using substances present in native lignocellulosic biomass as nutrients for fermentation was proposed and demonstrated. Leaves and stalks of corn plants were used as biomass, and nutrients were recovered as a nutrient solution by soaking them in water before alkaline peroxide pretreatment. Pretreated biomass and the nutrient solution derived from the same lot were used for non-sterile simultaneous enzymatic saccharification and thermophilic l-lactic acid fermentation (SSF). Using the nutrient solution in the saccharification step did not impact sugar recovery, and instead improved sugar yields because of the presence of eluted sugars in the solution. The l-lactic acid yield of 0.33 g g(-1) based on native biomass weight indicated that the nutrient solution functioned as a source of nutrients and sugars, especially as a source of essential phosphorus. Comparatively, autoclaved SSF yielded less or no l-lactic acid, indicating an apparent inhibitive effect derived from the nutrient solution on bacterial growth.

DOI： 10.1007/s10163-015-0390-y

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Nitrous oxide emissions during biological soil disinfestation with different organic matter and plastic mulch films in laboratory-scale tests Reviewed

Morihiro Maeda, Eisuke Kayano, Taku Fujiwara, Hideaki Nagare, Satoshi Akao

ENVIRONMENTAL TECHNOLOGY 37 ( 4 ) 432 - 438 2016.2

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：TAYLOR & FRANCIS LTD

Nitrous oxide (N2O), which is a greenhouse gas, may be more emitted as an intermediate product of denitrification during biological soil disinfestation. The biological soil disinfestation is a method to suppress soil-borne pathogens under reductive soil conditions produced by the application of organic matter and water irrigation with plastic film. The objective of the study was to determine the effects of different organic matter and mulch films on N2O emissions during biological soil disinfestation. Grey lowland soil amended with cattle compost plus rice bran (0.2%), rice husk (0.2%) or dent corn (0.1%, 0.2% and 0.4%) was incubated at 100% water-holding capacity with or without plastic films made of polyvinyl chloride (PVC) and triple-layer polyolefin (3PO) for 72h at 50 degrees C. Permeation of the two films was also measured at 25 degrees C and 50 degrees C. Results showed that incorporation of organic matter increased N2O emissions compared with no organic matter addition at 50 degrees C. Incorporation of rice bran and dent corn with easily decomposable C and low C:N ratios increased N2O emissions for the first 12h, but thereafter, available C supply from these amendments suppressed N2O emissions. Permeability of mulch films increased at a higher temperature and was larger for PVC than for 3PO. Our study indicated that rice husk should not be used for soil disinfestation and that application rates of organic matter must be determined based on their decomposability. Moreover, mulch film covering would not suppress N2O emission in biological soil disinfestation because of high temperature.

DOI： 10.1080/09593330.2015.1092494

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Phosphorus Flux across the Sediment-Water Interface in a Drainage Ditch Receiving Water from Livestock Farms in Kasaoka, Japan Reviewed

Huy Van NGUYEN, Teppei YODEN, Morihiro MAEDA

Journal of Water Environment and Technology 14 ( 3 ) 191 - 199 2016

大型水生植物からのリン回収 Reviewed

永禮英明, 渡辺諒, 藤原拓, 赤尾聡史, 前田守弘

土木学会論文集G（環境） 72 ( 8 ) Ⅲ-249-Ⅲ-254 - ?-254 2016

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Papers - MAEDA Morihiro