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http://dx.doi.org/10.11625/KJOA.2017.25.1.85

Ability to Supply Macro-nutrients as Affected by Time and Height of Mowing of Ground Cover Crops on a Pesticide-free Pear Orchard  

Lim, Kyeong-Ho (전라남도농업기술원 원예연구소)
Kim, Hyun-Ji (전라남도농업기술원 친환경농업연구소)
Kim, Byeong-Sam (전라남도농업기술원 과수연구소)
Hwang, In-Taek (전라남도농업기술원 원예연구소)
Son, Dong-Mo (전라남도농업기술원 원예연구소)
Kim, Hyo-Joong (전라남도농업기술원 원예연구소)
Jung, Seok-Kyu (대구가톨릭대학교 원예학과)
Choi, Hyun-Sug (대구가톨릭대학교 원예학과)
Publication Information
Korean Journal of Organic Agriculture / v.25, no.1, 2017 , pp. 85-99 More about this Journal
Abstract
The study was compared for ability to supply macro-nutrients between time and height of mowing to establish alternate technique of a chemical fertilizer with 9-year old 'Niitaka' pear (Pyrus pyrifolia Nakai) trees in a pesticide-free orchard in 2009. Rye and hairy vetch were sown together during fall 2008. Four types of mowing time treatments were included; mowing on April 18+May 28, on April 28+June 8, on May 8+June 18, and on April 18+May 18+June 18. Mowing height treatment included mowing at $3{\pm}1cm$, $7{\pm}1cm$, and $13{\pm}1cm$ on April 18 or June 8. Mowing on May 8+June 18 increased the most dry weight of ground cover and vegetation to 14,480 kg per ha among the mowing time treatments, resulting in the greatest production of T-N (total nitrogen; 292 kg) and K (396 kg) per ha on the soil. Mowing at $7{\pm}1cm$ decreased the most dry weight of ground cover and vegetation to 11,970 kg per ha among the mowing height treatments, resulting in the lowest production of T-N (265 kg), P (111 kg) and K (333 kg) per ha in a soil. Ground cover treatments increased soil organic matter contents, regardless of mowing treatment methods.
Keywords
hairy vetch; organic; organic matter; rye; vegetation;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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