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Soil Characteristics and Leaf and Bud Developments with Different Organic Fertilizers in a Pear Orchard  

Choi, Hyun-Sug (국립농업과학원 유기농업과)
Li, Xiong (전남대학교 원예학과)
Kim, Wol-Soo (전남대학교 원예학과)
Choi, Kyeong-Ju (국립농업과학원 유기농업과)
Lee, Youn (국립농업과학원 유기농업과)
Jung, Seok-Kyu (경희대학교 고려인삼 명품화 사업단 및 인상유전자원 소재은행)
Publication Information
Korean Journal of Organic Agriculture / v.18, no.3, 2010 , pp. 363-375 More about this Journal
Abstract
Sustainable farming systems have remarkably increased in Korea due to the increase of environmental concerns caused by the conventional systems. This study was performed on eight-year-old 'Niitaka' pear tree s to investigate the effects of different organic fertilizers on soil chemical and microbial properties and leaf and bud developments. Treatment and applications included 10 kg of rice bran (RB), 10 kg of coffee bran compost (CBC), 10 kg of Chitin incubated compost (Micro keeper$keeper^{(R)}$, CIC), and 30 kg of the mixture of the RB, CBC, and CIC (RCC). Control received 60 g of NPK (16-11-12) chemical fertilizer. The organic fertilizers increased organic matter, nutrient concentrations such as P, K, Ca, and Mg, and microbial biomass in soils compared to the control. RCC had the greatest specific leaf weight (SLW), and the other treatments did not have a significant difference for the SL W. Leaf P and K concentrations were different among the treatments, but they were not affected by the amounts of the soil nutrients. No differences were observed in the leaf Ca and Mg concentrations in the treatments. Organic fertilizers had greater chlorophyll contents than the control but had similar flower bud characteristics to the control.
Keywords
organic; `Niitaka' pear; rice bran; coffee bran; chitin compost; nutrient; growth; microbial biomass;
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Times Cited By KSCI : 2  (Citation Analysis)
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