{"@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/1361137044604931456.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.4236/jacen.2020.93011"}},{"identifier":{"@type":"URI","@value":"https://www.scirp.org/journal/paperinformation?paperid=102096"}},{"identifier":{"@type":"URI","@value":"https://www.scirp.org/xml/102096.xml"}}],"dc:title":[{"@value":"Effect of Organic and Chemical Fertilizer Application on Growth, Yield, and Quality of Small-Sized Tomatoes"}],"description":[{"notation":[{"@value":"Tomatoes in Japan are generally cultivated under management systems that  use chemical fertilizers and synthetic chemical pesticides. However, the  continuous use of these fertilizers and pesticides damages the soil environment  and reduces the number of soil microorganisms. Organic farming has a relatively  low environmental impact compared to conventional farming techniques, but  typically has lower and more unstable yields. In this study, we investigated  the effect of organic and chemical fertilizer application on growth, yield, and  quality of small-sized (cherry) tomatoes. Cherry tomatoes were cultivated using  organic and chemical organic fertilizers. Average weight and lateral diameter  were significantly higher under organic fertilizer than under chemical  fertilizer. In addition, shoot dry weight was significantly higher under  organic fertilizer than chemical fertilizer. Lycopene content was significantly  higher under organic fertilizer than chemical fertilizer. The total carbon  (TC), total phosphorus (TP), total potassium (TK), available phosphoric (SP)  and exchangeable potassium (SK) contents, C/N ratio, and pH were significantly  higher under organic fertilizer than chemical fertilizer. Bacterial biomass,  nitrite (NO? 2-N)  oxidation activity, nitrification (N) circulation activity, and phosphoric (P)  circulation were higher under organic fertilizer than chemical fertilizer. From  these results, the study indicates that appropriate controls such as TC, total  nitrogen (TN), and C/N ratio of organic fertilizer increased microbial biomass  and enhanced nutrient circulation such as N circulation activity and P  circulation activity. These results can be used to  improve current organic farming practices and promote soil conservation."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420001326216600064","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"00806226"},{"@type":"NRID","@value":"1000000806226"},{"@type":"NRID","@value":"9000411210055"},{"@type":"NRID","@value":"9000413768949"},{"@type":"NRID","@value":"9000411039406"},{"@type":"NRID","@value":"9000406019485"},{"@type":"NRID","@value":"9000256447376"},{"@type":"NRID","@value":"9000409762462"},{"@type":"NRID","@value":"9000409762438"},{"@type":"NRID","@value":"9000001947482"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0150849"}],"foaf:name":[{"@value":"Takamitsu Kai"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137044604931456","@type":"Researcher","foaf:name":[{"@value":"Shunya Nishimori"}]},{"@id":"https://cir.nii.ac.jp/crid/1420282801205835904","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"20227268"},{"@type":"NRID","@value":"1000020227268"},{"@type":"NRID","@value":"9000003038700"},{"@type":"NRID","@value":"9000003032886"},{"@type":"NRID","@value":"9000254452870"},{"@type":"NRID","@value":"9000405732146"},{"@type":"NRID","@value":"9000252777789"},{"@type":"NRID","@value":"9000254452832"},{"@type":"NRID","@value":"9000257885910"},{"@type":"NRID","@value":"9000002125488"},{"@type":"NRID","@value":"9000257886332"},{"@type":"NRID","@value":"9000003078018"},{"@type":"NRID","@value":"9000257887208"},{"@type":"NRID","@value":"9000003032345"},{"@type":"NRID","@value":"9000018222735"},{"@type":"NRID","@value":"9000411039408"},{"@type":"NRID","@value":"9000009583810"},{"@type":"NRID","@value":"9000283356083"},{"@type":"NRID","@value":"9000008496872"},{"@type":"NRID","@value":"9000015234726"},{"@type":"NRID","@value":"9000017039408"},{"@type":"NRID","@value":"9000001803104"},{"@type":"NRID","@value":"9000257886205"},{"@type":"NRID","@value":"9000000631377"},{"@type":"NRID","@value":"9000001803175"},{"@type":"NRID","@value":"9000002125507"},{"@type":"NRID","@value":"9000257885843"},{"@type":"NRID","@value":"9000018883894"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0017236"}],"foaf:name":[{"@value":"Masahiko Tamaki"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"23257458"},{"@type":"EISSN","@value":"2325744X"}],"prism:publicationName":[{"@value":"Journal of Agricultural Chemistry and Environment"}],"dc:publisher":[{"@value":"Scientific Research Publishing, Inc."}],"prism:publicationDate":"2020","prism:volume":"09","prism:number":"03","prism:startingPage":"121","prism:endingPage":"133"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["http://creativecommons.org/licenses/by/4.0/"],"url":[{"@id":"https://www.scirp.org/journal/paperinformation?paperid=102096"},{"@id":"https://www.scirp.org/xml/102096.xml"}],"createdAt":"2020-08-11","modifiedAt":"2026-03-19","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360869854350392832","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Assessing Soil Fertility and Challenges in Organic Vegetable Farms: A Case Study in the Philippines"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.4236/jacen.2020.93011"},{"@type":"OPENAIRE","@value":"doi_dedup___::0d168a288a55d64251b2920af96b85d4"},{"@type":"CROSSREF","@value":"10.4236/jacen.2025.141007_references_DOI_X1Zg8uFq6zrm2BJ4N2tYABJxmcp"}]}