[논문]생분해성 멀칭필름이 토양환경과 양파 생육 및 수량에 미치는 영향

정지식; 박도원; 최현석

doi:10.7740/kjcs.2023.68.3.207

생분해성 멀칭필름이 토양환경과 양파 생육 및 수량에 미치는 영향
Effect of Biodegradable Film Mulching on Soil Environment and Onion Growth and Yield 원문보기

Korean journal of crop science = 韓國作物學會誌, v.68 no.3, 2023년, pp.207 - 215

정지식 (한경국립대학교 원예생명공학전공) , 박도원 (한경국립대학교 원예생명공학전공) , 최현석 (한경국립대학교 원예생명공학전공)

초록
AI-Helper

농업 현장에서 많이 사용되고 있는 생분해성 멀칭필름 2종(BFI, BFII)이 토양환경과 동계작물인 양파(Allium cepa L.)의 생육과 수량에 미치는 영향을 무처리(NM)와 PE필름(PEF)과 비교하기 위하여 수행되었다. 1. 생분해 필름은 150일 차부터 필름 표면의 붕괴가 모두 육안상 관찰되었다. 2. BFII 자재 내 투광률은 150일 차부터 증가하였고, 180일차 이후에는 중량 유지율이 90% 이하로 가장 낮게 나타났고, 경운 후 분해율도 가장 빨랐다. 3. 토양수분함량은 NM 처리구에서 -14 kP~0 kPa까지 가장 변동 폭이 컸고 토양 최소온도는 BFI 처리구에서 가장 높게 유지되었다. 4. 토양 유기물 함량은 멀칭구에서 낮은 수준을 보였고, 토양 내 무기성분 및 용적밀도, 세균 수는 처리 간에 통계적으로 유의적인 차이가 나타나지 않았다. 5. 양파의 뿌리신장은 생육 초기인 60일 차까지는 PEF와 BFI 처리에서 증가 폭이 컸고 줄기는 150일 차부터 PEF와 BFI에서 가장 많이 신장되었다. 6. 180일 차에 양파의 직경과 길이 및 무게, 그리고 도복율도 PEF와 BFI에서 가장 높은 수준을 보였다. 7. 230일 차에 양파 구근을 크기별로 분류한 결과, 양파 "특"의 수량은 BFI 처리에서 ha당 55.3톤으로 가장 많아 상품성이 높았고, PE (49.3톤), NM (9.4톤), BFII (2.7톤) 순으로 조사되었다.

Abstract ▼ AI-Helper

This study was compared the soil environment and growth and yield of onion (Allium cepa L.) treated with non-mulching (NM) and mulching polyethylene film (PEF) and two biodegradable films (BFI and BFII) commonly used in farmhouses. Visual observation confirmed the degradation of BFI and BFII films after 150 days after tansplanting (DAT). BFII increased light penetration into the films and reduced the weight maintenace after 180 DAT, with a high decompostion at 30 days after soil tilling. Soil moisture contents much fluctuated between -14 kP and - 0 kPa in NM plots, increasing the minimum soil temperature of BFI plots. Mulching treatments decreased soil organic matter contents but did not subtantially increase soil mineral nutrients, soil bulk density, and number of bacteria compared to those of NM plots. Onion root growth was increased by PEF and BFI treatments at an early growth stage, 60 DAT, with the most remarkable stem extension observed for PEF and BFI treatments after 150 DAT. PEF and BFI treatments increased the bulb's diameter, length, weight, and lodging at 180 DAT. BFI treatments exhibited a high portion of the "very large" category producing with 55.3 tons ha-1 based on the classification into bulb size, followed by PE (49.3 tons), NM (9.4 tons), and BFII treatments (2.7 tons) at 230 DAT.

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표/그림 (11)

그림 Fig. 1. Average temperature, minimum average temperature, and accumulated precipitation in an experimental farm station, Gumi, from October in 2022 to June in 2023.
그림 Fig. 2. Photo view of polyethylene film (PEF), biodegradable film I (BF I), and biodegradable film II (BF II) in an onion field at 30 days interval from 0 to 210 days after transplanting (DAT).
그림 Fig. 4. Amount of residual film (panel A) and decomposition (panel B) of non-mulching (NM), polyethylene film (PEF), biodegradable film I (BF I), and biodegradable film II (BF II) at 30 days after tilling the onion field, Gumi, July in 2023. Means separation among the treatments among a column by Duncan's multiple range test, 5%.
그림 Fig. 3. Visual decomposition (panel A), light transmission (panel B), and film weight maintenance (panel C) of polyethylene film (PEF), biodegradable film I (BF I), and biodegradable film II (BF II) applied with an onion field at 30 days interval from 0 to 210 days after transplanting (DAT), Gumi, 2022-2023. *, **, or *** indicate significantly difference among treatments for 30 days interval, p<0.05, 0.01, or 0.001, respectively; ns, not significance.
그림 Fig. 5. Soil minimum moisture (panel A), soil maximum moisture (panel B), soil minimum temperature (panel C), and soil maximum temperature (panel D) in an onion field as affected by applications of non-mulching (NM), polyethylene film (PEF), biodegradable film I (BF I), and biodegradable film II (BF II), Gumi, February, 2023.
그림 Fig. 6. Weed fresh weight (FW) and dry weight (DW) in an onion field at 210 days after transplanting as affected by applications of non-mulching (NM), polyethylene film (PEF), biodegradable film I, and biodegradable film II, Gumi, 2022-2023. Means separation among the treatments among a column by Duncan's multiple range test, 5%.
표 Table 1. Soil mineral nutrients, bulk density, and number of bacteria at 210 days after transplanting as affected by applications of non-mulching (NM), polyethylene film (PEF), biodegradable film I (BF I), and biodegradable film II (BF II), Gumi, May, 2023.
그림 Fig. 7. Stem length (panel A), root length (panel B), number of leaf (panel C), and total leaf FW (panel D) of onion crops at 30 days interval from 0 to 210 days after transplanting (DAT) as affected by applications of non-mulching (NM), polyethylene film (PEF), biodegradable film I (BF I), and biodegradable film II (BF II), Gumi, 2022-2023. *, **, or *** indicate significantly difference among treatments for 30 days interval, p<0.05, 0.01, or 0.001, respectively; ns, not significance.
그림 Fig. 8. Bulb diameter (panel A), bulb length (panel B), L/D ratio (panel C), and bulb weight (panel D) of onion crops at 30 days interval from 0 to 210 days after transplanting (DAT) as affected by applications of non-mulching (NM), polyethylene film (PEF), biodegradable film I (BF I), and biodegradable film II (BF II), Gumi, 2022-2023. *, **, or *** indicate significantly difference among treatments for 30 days interval, p<0.05, 0.01, or 0.001, respectively; ns, not significance.
그림 Fig. 9. Bolting and lodging (%) of onion crops at 160 days after transplanting (DAT) as affected by applications of non-mulching (NM), polyethylene film (PEF), biodegradable film I, and biodegradable film II, Gumi, 2023. Means separation among the treatments among a column by Duncan's multiple range test, 5%.
표 Table 2. Classification of four catergories of bulb size at 240 days after transplanting as affected by applications of non-mulching (NM), polyethylene film (PEF), biodegradable film I (BF I), and biodegradable film II (BF II), Gumi, June, 2023.

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