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http://dx.doi.org/10.17137/korrae.2021.29.2.15

Effect of Organic Materials Use Recommendation System on Soil N Mineralization and Rice Productivity in Organic Paddy  

Lee, Cho-Rong (Organic Agriculture Division, National Institute of Agricultural Science)
Lee, Sang-min (Organic Agriculture Division, National Institute of Agricultural Science)
Hwang, Hyeon-Yeong (Organic Agriculture Division, National Institute of Agricultural Science)
Kwon, Hyeok-Gyu (Organic Agriculture Division, National Institute of Agricultural Science)
Jung, Jung A (Organic Agriculture Division, National Institute of Agricultural Science)
An, Nan-Hee (Organic Agriculture Division, National Institute of Agricultural Science)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.29, no.2, 2021 , pp. 15-23 More about this Journal
Abstract
This study was conducted to evaluate the field application of the developed recommendation system in organic rice (Oriza sativa L.) paddy and to investigate the mineral nitrogen content in soil and rice productivity. According to the developed system, hairy vetch (HV), rye+rapeseed oil cake (R+OC), rapeseed oil cake (OC) for only basal fertilization (OC-B), OC for split application (OC-S), pig manure compost (PMC), and chemical fertilizer (CHM) were applied to paddy soil at the rate of 107~133 kg N/ha. Results were followed, unhulled rice yield of OC-S (111%), OC-B (110), R+OC (106), HV (101), and PMC (96) were no significantly different with CHM (100). Also there was positive correlation (R2=0.803*) between unhulled rice yield and cumulative inorganic N in soil. For nitrogen use efficiency of rice, OC-B, OC-S, and R+OC were not significantly different with CHM. In conclusions, the developed organic materials use recommendation system was effective for organic rice productivity. It could be useful for organic farmer to apply the organic materials use recommendation system for rice.
Keywords
organic farming; nitrogen use efficiency; nutrient management; soil fertility; rice yield;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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