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Evaluation of Potential Nutrient Contribution of Overwintering Cover Crops in Organic Orchards  

Lim, Kyeong-Ho (국립원예특작과학원 배시험장)
Choi, Hyun-Sug (국립농업과학원 유기농업과)
Kwon, Oh-Do (전라남도농업기술원)
Kang, Sam-Seok (국립원예특작과학원 배시험장)
Yim, Sun-Hee (국립원예특작과학원 배시험장)
Kim, Yoon-Kyeong (국립원예특작과학원 배시험장)
Lee, Han-Chan (국립원예특작과학원 배시험장)
Jung, Seok-Kyu (경희대학교 한방재료가공학과)
Publication Information
Korean Journal of Organic Agriculture / v.20, no.2, 2012 , pp. 173-183 More about this Journal
Abstract
This study was conducted to select promising green manure crops, providing sufficient amount of nutrients for satisfying fruit tree growth, with the overwintering cover crops grown in organic orchards in 2009. The cover covers were investigated in 13 organic orchards in Chonnam province in April and June. The dry matter in cover crops observed in April and June was the highest for Lolium multiflorum Lam. and Bromus japonicus Thunb., respectively. Total N and K production in April was the highest for Lolium multiflorum Lam, Vicia hirsuta (L.) S. F. Gray and Vicia angustifolia var. segetilis (Thuill.) K. Koch., respectively, with Bromus japonicus Thunb. in June. This study showed that the leguminous crops, Vicia hirsuta (L.) and Vicia angustifolia, would be the prospective cover covers as the both crops provided sufficient amount of N and $K_2O$ into the soil. Amount of $P_2O_5$ producing from all cover crops provided less than nutrient levels than those of recommended nutrient requirement for satisfying 10- to 15-year-old fruit tree growth.
Keywords
cover crop; organic orchard; Vicia angustifolia var. segetilis (Thuill.) K. Koch.; Vicia hirsuta (L.) S. F. Gray;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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