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http://dx.doi.org/10.11625/KJOA.2019.27.4.453

Evaluation of Mixed Treatment of Amino Acid Liquid Fertilizer and Compost Tea as a Substitute for Oil-cake in Organic Cultivation of Maize  

Lee, Sung-Hee (충청북도농업기술원 연구개발국 유기농업연구소)
Lee, Kyu-Hoi (충청북도농업기술원 연구개발국)
Kim, Hyun-Ju (충청북도농업기술원 연구개발국)
Lee, Sang Min (국립농업과학원 유기농업과)
Kim, Ju-Hyoung (충청북도농업기술원 연구개발국)
Publication Information
Korean Journal of Organic Agriculture / v.27, no.4, 2019 , pp. 453-461 More about this Journal
Abstract
The purpose of this study was to evaluate the mixed treatment of compost tea and amino acid liquid fertilizer as a substitute of oil cake for the organic cultivation of maize in Goesan, Chungbuk province. As a result, nitrogen, phosphoric acid, potassium, calcium and magnesium contents of each organic fertilizer were in the order of oil cake > amino acid fertilizer > compost tea. Each of these organic fertilizers had little influence on the change of soil chemical. Individual treatment of amino acid fertilizer and oil cake for weight of an ear as well as all individual treatments for the fresh weight of 100 kernels showed significant increase, compared to the untreated control. For the corn yield of merchantable quality, each treatment of compost tea, amino acid liquid fertilizer and oil cake increased higher 3.9, 5.4 and 5.9% than untreated control, respectively. On the other hand, as a result of mixed treatment of amino acid fertilizer and compost tea, the change of soil chemical property was insignificant. The mixed treatment, Nonetheless, showed significant increase for stem height to 1st ear, grain setting length in an ear, weight of an ear, and fresh weight of 100 kernels, compared to the oil cake as a control. After all, the corn yield of merchantable quality produced by the mixed treatment was 3.9% higher than the control. Therefore, our study would be considered that the mixed treatment of amino acid and compost tea is one of organic materials that can replace oil-cake in maize.
Keywords
organic cultivation; compost tea; amino acid liquid fertilizer; oil cake;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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