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http://dx.doi.org/10.11625/KJOA.2018.26.4.629

Organic Rice (Oryza sativa L.) Production in Eco-friendly Complex using Gelatin·Chitin Microorganisms  

Choi, Seung-Hee (전남대학교 농업생명과학대학 농화학과 친환경농업연구소)
Cha, Kwang-Hong (전남대학교 농업생명과학대학 농화학과 친환경농업연구소)
Seo, Dong-Jun (전남대학교 농업생명과학대학 농화학과 친환경농업연구소)
Park, Hung-Gyu (전라남도농업기술원 식량작물연구소)
Kwon, Oh-Do (전라남도농업기술원 식량작물연구소)
An, Kyu-Nam (전라남도농업기술원 식량작물연구소)
Lee, Jai-Hak (전라남도 나주시 광역친환경농업단지조합 공동사업법인)
Kim, Kil-Yong (전남대학교 농업생명과학대학 농화학과 친환경농업연구소)
Jung, Woo-Jin (전남대학교 농업생명과학대학 농화학과 친환경농업연구소)
Publication Information
Korean Journal of Organic Agriculture / v.26, no.4, 2018 , pp. 629-647 More about this Journal
Abstract
This study was carried out to investigate the economic value of organic rice production using gelatin chitin microorganisms in eco-friendly complex, Gongsan, Naju city. The soil condition of experiment paddy field was Jeonbuk series and silt loam with a slightly poor drainage. Except for the high effective silicate, the chemical characteristics of soils used were included in the optimum range of paddy soils in Korea. In growth, plant length, tiller number, ear number, and ear length were observed to be higher in conventional paddy fields than organic paddy fields. However, number of grain per panicle and grain filling ratio (%) were higher in organic paddy fields than conventional paddy fields. Incidences of diseases and insect pests were slightly higher in the organic paddy fields. Water weevil, sheath blight, rice leaf roller and rice blast were more occurred in organic paddy field. On the other hand, false smut was higher occurred in conventional paddy field. There was a significant negative correlation between rice sheath blight and rice leaf roller, and rice yield. In the milled rice quality, the quality of organically cultivated milled rices was lower by the increase of broken rice than that of conventionally cultivated milled rices. The quality and palatability of rice were higher in organic cultivation with decreasing of protein content. Net income of conventionally and organically cultivated rice was 360,000 won/10a and 610,000 won/10a, respectively. Premium net income of the organically cultivated rice was 68%.
Keywords
eco-friendly complex; net income; organically cultivated rice; rice quality;
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