{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282681335865856.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.11248/jsta1957.50.109"}},{"identifier":{"@type":"NAID","@value":"130004373968"}}],"dc:title":[{"@language":"en","@value":"Effects of Selected Treatments on the Production of Rice in Acid Sulfate Soils in a Simulation Study"},{"@language":"ja","@value":"シミュレーションによる酸性硫酸塩土壌の修復処理が稲の生産性に及ぼす影響"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Effects of the application rate of basic slag (BS<SUB>10</SUB> and BS<SUB>20</SUB>: basic slag 10 and 20 t ha<SUP>-1</SUP>), aggregate size (A<SUB>20</SUB> and A<SUB>30</SUB>: aggregate sizes of soils, less than 20 and 20-30 mm) and groundwater level (GW<SUB>0</SUB>: no influence of groundwater and GW<SUB>50</SUB>: groundwater beneath 50 cm of the soil surface) treatments on the growth and yield of rice (<I>Oryza sativa</I> L.; BR-3 Mukta) cultivated in two pre-leached (leached for a week through tap water to remove excessive acidity and salinity from the soils before seedling transplantation) acid sulfate soils of Badarkhali (Salidic Sulfaquept) and Cheringa (Typic Sulfic Halaquept) series were evaluated in a simulation study. Optimum growth and yield of rice were recorded by the treatment combining A<SUB>30</SUB>GW<SUB>50</SUB>BS<SUB>20</SUB> in both the Cheringa (grain: 6.70 t ha<SUP>-1</SUP>) and Badarkhali (5.78 t ha<SUP>-1</SUP>) soils. The application of basic slag (BS<SUB>20</SUB>) was found to be the most effective among the individual treatments, followed by the BS<SUB>10</SUB>>GW<SUB>50</SUB>>A<SUB>30</SUB> treatments. The application of BS<SUB>20</SUB> increased the grain yield in combination with the GW<SUB>0</SUB> treatment by 100% for A<SUB>20</SUB>, while by 122% for A<SUB>30</SUB> in the Badarkhali soil. On the other hand, in the case of GW<SUB>50</SUB>, these increments were 138 and 246% for A<SUB>20</SUB> and A<SUB>30</SUB>, respectively, in the soils. However, the application of BS at the highest rate (BS<SUB>20</SUB>) to the Cheringa soil was not as effective as the A<SUB>20</SUB> and A<SUB>30</SUB> treatments in the Badarkhali soil. On the other hand, the same rate (BS<SUB>20</SUB>) of basic slag in combination with the GW<SUB>50</SUB> treatment increased the grain yield by 152 to 382% in the Cheringa soil compared with 138 to 246% in the Badarkhali soil. Almost similar and significant (p≤0.05) effects were observed for the other yield components of rice grown in both soil series. The effect of a larger soil aggregate size (20-30 mm) was more significant on the increase of the growth and yield of rice during the 4-month growing period of rice, regardless of treatments."},{"@value":"バングラデシュ国のBadarkhali (塩性硫酸塩土壌) とCheringa (硫酸性ハロイサイト) 地区における2種類のリーチングを済ませた酸性硫酸塩土壌を供試し, ポット試験において塩基性スラグ, 団粒径および地下水位などの修復処理が水稲の生育や収量に与える影響を検討した. 処理区としては塩基性スラグを10t/haおよび20t/ha投入区, 団粒が20mm以下の微細団粒区および20～30mm径の粗大団粒区, 地下水がない区及び地下水位が土壌表面下50cm区を各々組み合わせて設定した.水稲の生育および収量が最も良好であった区は粗大団粒区・地下水位50cm区・塩基性スラグ20t/ha区の組み合わせであり, 各々, Cheringa土壌においては6.70t/ha, Badarkhali土壌においては5.78t/haの子実収量であった.個々の処理区においては, 塩基性スラグ20t/ha区が最も水稲の生産性が高く, 次いで塩基性スラグ10t/ha区>地下水位50cm区>粗大団粒区の順であった.Badarkhali土壌の塩基性スラグ20t/ha区で, 微細団粒区における子実収量は100%の増加, 粗大団粒区で122%の増加を示した. さらに, 地下水位50cmの条件下では, それぞれが138%および246%まで増加した. しかしながら, Cheringa土壌においては, 塩基性スラグ20t/haの投入は, Badarkhali土壌における微細団粒区や粗大団粒区ほど効果はなかった.ただ, 地下水位50cmの条件下では, Badarkhali土壌の場合より高い子実収量が認められた. さらに, 他の収量構成要素についても同様に有意な効果が得られた.一方, 粗大団粒区においては, いずれの修復処理においても, 水稲の生育や収量は生育期の4ヶ月以内で良好になることが明らかになった."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410282681335865857","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000256724618"}],"foaf:name":[{"@language":"en","@value":"KHAN Md. Harunor Rashid"}],"jpcoar:affiliationName":[{"@language":"en","@value":"<I>Department of Environmental Management Engineering, Faculty of Environmental Science and Technology, Okayama University</I>"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282681335865856","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000256724619"}],"foaf:name":[{"@language":"en","@value":"BHUIYAN Md. 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Tadashi"},{"@language":"ja","@value":"足立 忠司"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"岡山大学大学院環境学研究科"},{"@language":"en","@value":"<I>Department of Environmental Management Engineering, Faculty of Environmental Science and Technology, Okayama University</I>"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00215260"},{"@type":"EISSN","@value":"21850259"}],"prism:publicationName":[{"@language":"en","@value":"Japanese Journal of Tropical Agriculture"},{"@language":"ja","@value":"熱帯農業"},{"@language":"en","@value":"Jpn. J. Trop. Agr."},{"@language":"ja","@value":"熱帯農業"}],"dc:publisher":[{"@language":"en","@value":"Japanese Society for Tropical Agriculture"},{"@language":"ja","@value":"日本熱帯農業学会"}],"prism:publicationDate":"2006","prism:volume":"50","prism:number":"3","prism:startingPage":"109","prism:endingPage":"115"},"availableAt":"2006","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=basic%20slag","dc:title":"basic slag"},{"@id":"https://cir.nii.ac.jp/all?q=yield","dc:title":"yield"},{"@id":"https://cir.nii.ac.jp/all?q=growth","dc:title":"growth"},{"@id":"https://cir.nii.ac.jp/all?q=aggregate%20size","dc:title":"aggregate size"},{"@id":"https://cir.nii.ac.jp/all?q=groundwater","dc:title":"groundwater"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%A1%A9%E5%9F%BA%E6%80%A7%E3%82%B9%E3%83%A9%E3%82%B0","dc:title":"塩基性スラグ"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%8F%8E%E9%87%8F","dc:title":"収量"},{"@id":"https://cir.nii.ac.jp/all?q=%E7%94%9F%E8%82%B2","dc:title":"生育"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%9B%A3%E7%B2%92%E5%BE%84","dc:title":"団粒径"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%9C%B0%E4%B8%8B%E6%B0%B4","dc:title":"地下水"}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:0028587009"},{"@type":"CIA","@value":"130004373968"}]}