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파라핀유와 혼용 살포에 의한 만코제브 수화제의 감귤 검은점무늬병방제 효과 증진
이평호,현재욱,황록연,김광식 한국식물병리학회 2014 식물병연구 Vol.20 No.3
This study was carried out to determine the effect of mixing with paraffin oil on rainfastness of mancozebon citrus fruits and assay the improvement of control effect of mancozeb against citrus melanose by mixingwith paraffin oil. In artificial rainfall condition (7.2 mm/hr), the attached contents of mancozeb on detachedfruits were the most in treatment of mancozeb 0.2% + paraffin oil 0.1% as the contents was 7.43 μg/cm2 aftertreatment of rainfall for 10 hr. In open field condition, the contents of attached mancozeb on fruits were significantlymore in treatment of mancozeb 0.2% + paraffin oil 0.1% or 0.25% than the other treatments 1,15 and 25 days after treatment 2009 and 2010 seasons. The disease incidence was significantly lower intreatment of mancozeb 0.2% + paraffin oil 0.1% or 0.25% than treatment of mancozeb 0.2% only 2009, 2010and 2011 seasons. Based on this study, it was suggested that the control effect of mancozeb against citrusmelanose can be improved by mixing with paraffin oil.
이평호 ( Pyeong Ho Lee ),백지현 ( Ji Hyeon Baek ),구연종 ( Yeonjong Koo ) 한국환경농학회 2023 한국환경농학회지 Vol.42 No.4
This study focused on nitrous oxide, a major greenhouse gas produced in agricultural settings through bacterial nitrogen oxidation in aerobic soil. Nitrogen fertilizer in farmland is identified as a primary source of nitrous oxide. The importance of reducing excess nitrogen in soil to mitigate nitrous oxide production is well-known. The study investigated the use of liquefied pig manure as an alternative to urea fertilizer in conventional agriculture. Results showed a more than two-fold reduction in nitrous oxide emissions in pepper cultivation areas with liquefied pig manure compared to that with urea fertilizer. The population of Nitrosospira, a nitrous oxide-producing bacterium, decreased by over 10% with liquefied pig manure. Additionally, nirK and nosZ, which are related to the denitrification process, significantly increased in the urea fertilizer group, whereas levels in the liquefied pig manure group resembled those with no nitrogen treatment. In conclusion, the experiment confirmed that liquefied pig manure can serve as an eco-friendly nitrogen fertilizer, significantly reducing nitrous oxide production, a major contributor to the atmospheric greenhouse effect.