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Beni Balad' 포도 비가림 재배에서 부숙유기질비료 및 Urea 토양 시용에 의한 암모니아 배출량 및 과실 품질
문영지 ( Young-ji Moon ),문병우 ( Byung-woo Moon ),김민욱 ( Min-wook Kim ) 한국환경농학회 2021 한국환경농학회지 Vol.40 No.4
BACKGROUND: Ammonia is a causative substance for the fine particulate matters (PM<sub>2.5</sub>) and generates dust through atmospheric reactions. Agricultural sector accounts for 79.3% of ammonia emissions in Korea. Urea and composted organic fertilizer (COF) are used in the soil for the purpose of supplying nutrients in grapevine orchards. This study was conducted to investigate estimates of ammonia emission and examine fruit quality from the rain proof cultivation of the ‘Beni Balad’, applied by urea and COF to the soil. METHODS AND RESULTS: Urea, COF1, and COF2 were applied at the rates of 119, 135, and 271 kg ha<sup>-1</sup> respectively. Ammonia emissionwas measured using a dynamic flow-through method. CONCLUSION(S): Ammonia emissions by urea and COF treatments to ‘Beni Balad’ soils under rain proof cultivation were calculated to be 2.63, 12.95, 2.05, and 3.97 kg NH<sub>3</sub>-N ha<sup>-1</sup> day<sup>-1</sup>, respectively for the control, urea, COF1, and COF2. Urea soil application increased soluble solids, firmness, and anthocyanin content in fruits at harvest, and COF1 application increased the soluble solids and anthocyanin content. For all the treatments, acidity increased in the harvested fruits.
다공질필름 멀칭과 황산칼륨 엽면살포에 의한 ‘홍로’ 사과의 과실품질
문영지(Young Ji Moon),강인규(In Kyu Kang),문병우(Byung Woo Moon) 한국원예학회 2022 원예과학기술지 Vol.40 No.2
We investigated the effects of coloring agent and potassium sulfate (K₂SO₄) foliar sprays, and reflective aluminium and porous film covering on the orchard floor on the enhancement of red peel coloration in ‘Hongro’ apples. Foliar spray of coloring agent and potassium sulfate, and reflective aluminium film mulching before harvest increased the Hunter a value and anthocyanin content of fruit peels at harvest. In addition, micro-porous film mulching had the best effect on promoting red peel coloration in the fruits in the lower and inner canopy, non-colored fruit parts, and fruit calyx-end part due to improved light irradience. Although no statistical differences were detected in fruit weight, firmness, and acidity at harvest, the soluble solids content (SSC) of fruits was increased by coloring agent foliar spray. Reflective aluminium film mulching had the highest incidence of fruit sunscald at harvest. However, porous film mulching did not affect the sunscald occurrence of control fruit. Therefore, the result indicated that porous film mulching at 20 or 30 d before harvest is the most effective for promoting red peel coloration.