Papers - IDOTA Sachiko
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Effect of mixed sowing of annual Setaria and Digitaria species on establishment of bahiagrass in southern Kyushu"Jointed worked" Reviewed
Koutarou Mori, Yasuyuki Ishii, Asuka Yamano, Kotomi Hamano, Tomoaki Nakahara, Sachiko Idota
Proceedings of the 4th Japan-China-Korea Grassland Conference 150 - 151 2012.3
Language：English Publishing type：Research paper (international conference proceedings)
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Yield and nitrogen recovery rate in two forage cropping systems supplied with organic fertilizers originating from digested effluent of manure"Jountly worked"
Sachiko Idota, Yoki Asano, Masaaki Kirimura, Yasuhiro Sugimoto, Yasuyuki Ishii
Proceedings of the 4th Japan-China-Korea Grassland Conference 148 - 149 2012.3
Language：English Publishing type：Research paper (international conference proceedings)
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Assessment of potential cadmium uptake for phytoextraction activity in solution cultures of napiergrass."jointly worked" Reviewed
Kotomi Hamano, Yasuyuki Ishii, Dong-Jin Kang, Asuka Yamano, Koutarou Mori, Sachiko Idota, Aya Nishiwaki
Proceedings of the 4th Japan-China-Korea Grassland Conference 62 - 63 2012.3
Language：English Publishing type：Research paper (international conference proceedings)
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Yield and nitrogen recovery rate in two forage cropping systems supplied with organic fertilizers originating from digested effluent of manure"Jountly worked". Reviewed
Sachiko Idota, Yoki Asano, Masaaki Kirimura, Yasuhiro Sugimoto, Yasuyuki Ishii
Proceedings of the 4th Japan-China-Korea Grassland Conference 148 - 149 2012.3
Language：English Publishing type：Research paper (international conference proceedings)
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雑草防除管理が造成した矮性ネピアグラスの粗飼料の収量，品質および越冬性に及ぼす影響
UTAMY Renny Fatmyah, 石井 康之, 井戸田 幸子, KHAIRANI Lizah
日本暖地畜産学会報 55 ( 1 ) 17 - 26 2012
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Warm Regional Society of Animal Science, Japan
ネピアグラスの矮性晩生品種（DLネピアグラス）を南九州の生産者へ普及する過程で，造成年における雑草防除が本牧草の良好な定着と粗飼料収量を確保する重要な要因であることが明らかとなった．本研究は，3種類の雑草防除管理，すなわち節間伸長茎では再生能力を欠く一年生セタリアの混播，ペーパーマルチの設置および手取り除草と雑草防除なしについて，乾物収量，粗飼料品質および越冬性を2カ年（2008～2009年および2010～2011年）にわたって検討した．いずれの雑草防除管理も雑草防除なしと比べて，草高，茎数密度，葉身比率および葉面積指数などの植物体の各形質に有意な正の効果をもたらした．特に，ペーパーマルチの設置は，両年ともに最も高い収量が得られ，2008～2009年では越冬率が最も高く100%であった．一年生セタリアの混播は，雑草によるDLネピアグラスの収量減を部分的に補完する効果があった．粗飼料品質としての<i>in vitro</i>乾物消化率（IVDMD）と粗タンパク質（CP）含量に対する雑草防除の効果は認められなかった．したがって，ペーパーマルチの設置と一年生セタリアの混播はともに，造成したDLネピアグラスの収量性を確保するため，また越冬性改善の可能性のある有効な雑草防除手法として提起できるものと推察された．
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Utamy Renny Fatmyah, Ishii Yasuyuki, Khairani Lizah, Mori Koutarou, Idota Sachiko
Abstracts of Meeting of the CSSJ 234 ( 0 ) 2012
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：CROP SCIENCE SOCIETY OF JAPAN
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Hamano Kotomi, Ishii Yasuyuki, Idota Sachiko, Nakahara Tomoaki, Nishiwaki Aya, Kang Dong-Jin
Abstracts of Meeting of the CSSJ 234 ( 0 ) 2012
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：CROP SCIENCE SOCIETY OF JAPAN
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YAMANO Asuka, ISHII Yasuyuki, MORI Koutarou, HAMANO Kotomi, IDOTA Sachiko
80 76 - 77 2011.8
Language：Japanese Publishing type：Research paper (scientific journal)
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HAMANO Kotomi, ISHII Yasuyuki, YAMANO Asuka, MORI Koutarou, IDOTA Sachiko, KANG Dong-Jin, NISHIWAKI Aya
Report of the Kyushu Branch of the Crop Science Society of Japan ( 78 ) 21 - 24 2011.5
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Crop Science Society of Japan
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YAMANO Asuka, ISHII Yasuyuki, KHAIRANI Lizah, IDOTA Sachiko
Report of the Kyushu Branch of the Crop Science Society of Japan ( 77 ) 63 - 67 2011.5
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Crop Science Society of Japan
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矮性ネピアグラスの栄養苗生産のための成長形質に及ぼす短日およびジベレリン処理の影響（共著）
山野 明日香, 石井 康之, Lizah Khairani, 井戸田 幸子
日本作物学会九州支部会報 77 63 - 68 2011.5
Language：Japanese Publishing type：Research paper (scientific journal)
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Adaptability of Dwarf Napiergrass under Cut-and carry and Grazing systems for Smallholder Beef Farmers in Southern Kyushu, Japan (共著） Reviewed
Renny Fatmyah UTAMY, Yasukyuki ISHII, Sachiko IDOTA, Naoto HARADA and Kiichi FUKUYAMA
日本暖地畜産学会報 54 ( 1 ) 87 - 98 2011.3
Language：English Publishing type：Research paper (scientific journal)
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Yamano Asuka, Ishii Yasuyuki, Mori Koutarou, Hamano Kotomi, Idota Sachiko
Abstracts of Meeting of the CSSJ 232 ( 0 ) 76 - 76 2011
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：CROP SCIENCE SOCIETY OF JAPAN
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UTAMY Renny Fatmyah, ISHII Yasuyuki, IDOTA Sachiko, HARADA Naoto, FUKUYAMA Kiichi
Nihon Souchi Gakkai Kyushu Shibukaiho 54 ( 1 ) 87 - 98 2011
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Warm Regional Society of Animal Science, Japan
Smallholder beef farmers, particularly in isolated islands, were highly aged, holding limited arable lands with poor machinery equipment. Demand for herbage production increases rapidly due to high cost of imported herbage supply. We investigated the adaptability of dwarf napiergrass (<I>Pennisetum purpureum</I> Schumach) of late-heading type (dwarf-late, DL) to 12 sites including isolated islands in 3 Prefectures of southern Kyushu by determining soil properties, plant growth characters, herbage yield and quality, and overwintering ability in 2007.2009. The dry matter (DM) yield of DL napiergrass ranged in 0.7-13.6 and 0.2.15.8 Mg/ha/yr in 2007 and 2008, respectively. There were significantly positive correlations between N fertilizer supply and DM yield (r = 0.844, P < 0.01 and r = 0.928; P < 0.001 in 2007 and 2008, respectively). However, not only by the rate of fertilizer application, DM yield was also variable depending on soil fertility and weed control across the examined sites. Herbage quality in leaf blade and stem inclusive of leaf sheath, as assessed by <I>in vitro</I> DM digestibility and crude protein (CP) content, ranged in 56.76% and 6.18%, respectively. In some cases, CP content declined below the critical level as a feed for breeding cows, since the herbage quality in leaf blade had significantly negative correlation with cutting interval (P < 0.05). Results revealed that DL napiergrass should adapt to the examined sites including isolated islands in the established and subsequent years. However, it is necessary to maintain the satisfactory level of herbage yield and quality by the minimum fertilizer application at least more than 100 kg N/ha/yr, and the optimum soil condition, cutting interval and weed control after establishment.
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Growth Response of Dwarf Napiergrass to Manure Application Originated from Digested Effluent (共著） Reviewed
Hadijah HASYIM，Yasuyuki ISHII， Ahmad WADI，Sachiko IDOTA and Yasuhiro SUGIMOTO
日本暖地畜産学会報 53 ( 2 ) 115 - 126 2010.9
Language：English Publishing type：Research paper (scientific journal)
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HASEGAWA Nobumi, SONG Rende, LI Guomei, IDOTA Sachiko, NISHIWAKI Aya
Japanese journal of grassland science 56 ( 1 ) 67 - 73 2010.4
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Grassland Science
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Effect of growth rate and sprout promotion on the bivalent iron ions in Japanese lawn grass (Zoysia japonica Stued.). Reviewed
Tomoya Matsuyama, Sachiko Idota, Naoki Horimoto, Tesshu Otabara, Yasuo Nomura, Hirohiko Sasamoto, Ryo Akashi
Journal of Japanese Society of Turfgrass Science 38 ( 2 ) 162 - 166 2010.3
Language：Japanese Publishing type：Research paper (scientific journal)
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Growth Response of Dwarf Napiergrass to Manure Application Originated from Digested Effluent
HASYIM Hadijah, ISHII Yasuyuki, WADI Ahmad, IDOTA Sachiko, SUGIMOTO Yasuhiro
Nihon Danchi Chikusan Gakkaihou 53 ( 2 ) 115 - 126 2010
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Warm Regional Society of Animal Science, Japan
The objectives of this study were to determine the growth response of dwarf napiergrass (<I>Pennisetum purpureum</I> Schumach) to digested effluent of manure (DEM). Liquid form of DEM (LDEM) produced from biogas-plant and different rates of manure enriched with LDEM (SDEM) were applied to dwarf napiergrass. The plant height, tiller number, leaf area and total dry matter weight (TDMW) significantly increased with the increasing manure application in dwarf napiergrass. This yielding ability was derived from high accumulation of dry matter in root and underground stem part to show lower top to root ratio below 2 in this genotype. Both LDEM and SDEM were so effective in enhancing plant growth as in chemical fertilizer, while the efficiency of total N content to yielding ability was the least in SDEM, followed by LDEM and chemical fertilizer with no-significant difference among treatments in dwarf napiergrass.
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Matsuyama Tomoya, Idota Sachiko, Horimoto Naoki, Otabara Tesshu, Nomura Yasuo, Sasamoto Hirohiko, Akashi Ryo
Journal of Japanese Society of Turfgrass Science 38 ( 2 ) 162 - 166 2010
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Turfgrass Science
<p>We investigated that the effect of new iron-supplement fertilizer TetsuRiki (Aichi Steel's company) containing FeO as a main component on the growth and post-dormancy growth of Japanese lawn grass (<i>Zoysia japonica</i> Steud.) under the field conditions. Plants were supplied by ion-supplement application under three levels control (0 kg/m<sup>2</sup>), low (0.17 kg/m<sup>2</sup>), high (0.33 kg/m<sup>2</sup>). Plant height and dry matter weight of shoot were remarkably improved in parallel with the improvement of leaf SPAD value. And the number of budding was increased with adversely effecting post-dormancy recovery in spring. Iron and manganese concentrations in aboveground plant parts were higher in Fe application plots than control plots. However, the number of sprout in Fe application plots was no significant difference between control plots.</p>
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Adaptability and sustainability of DL napiergrass under cut-and-carry and grazing systems for smallholder farmers in southern Kyushu, Japan "jointly worked"
Renny Fatmyah Utamy, Yasuyuki Ishii, Ahmad Wadi, Sachiko Idota, Naoto Harada, Kiichi Fukuyama
Proceedings of the 3rd Korea-China-Japan Jpint Sympossium on Grassland Agriculture and Livestock Production 62 - 63 2009.8
Language：English Publishing type：Research paper (international conference proceedings)