Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Effect of Chelated Organic Minerals Liquid Fertilizer on Growth and Fruit Quality in 'Jukhyang' Strawberry

킬레이트 유기 미네랄 액비가 '죽향' 딸기의 생육 및 과실품질에 미치는 영향

  • Received : 2017.06.16
  • Accepted : 2017.09.27
  • Published : 2017.11.30
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Abstract

TThis study investigated the influence of AGH-Ringer (chelated organic minerals liquid fertilizer) on the growth, yield, and fruit quality of 'Jukhyang' strawberry in a hydroponic system. The results revealed that AGH-Ringer group led to significantly higher plant length than that of the control group, and that leaf length and leaf width increased with increasing leaf area. In addition, the fresh and dry weights of leaves and SPAD unit, which measures leaf color also showed a significant increase with AGH-Ringer. However, the length and dry weight of roots did not show significant differences when compared to the control group. In the fruit quality analysis, AGH-Ringer group did not show any difference in fruit length compared to the control group, but it increased both the fruit weight, which, along with the simultaneous increase in fruit width, increased the yield per strawberry. Furthermore, AGH-Ringer group strengthened the red skin color of the fruit, and resulted in significantly greater hardness than that of the control group, but did not have any effect on the soluble solid content and acidity. As shown in the results, the AGH-Ringer group resulted in lesser mineral content and lower to medium EC (electrical conductivity) in comparison to the inorganic mineral hydroponic fertilizer, which was used as a control. However, it increased the leaf growth, fruit weight, and yield, and improved the fruit quality by increasing the soluble solid content in the hydroponic system of 'Jukhyang' strawberry. Therefore, based on this study, AGH-Ringer is thought to be a more effective hydroponic fertilizer than the inorganic mineral hydroponic fertilizer. Moreover, the field experiment demonstrated that AGH-Ringer is a useful hydroponic fertilizer convenient for application in farms. This study also proved that AGH-Ringer is a fertilizer that can promote plant nutrition by controlling the salinity of the soil and facilitating the absorption of necessary minerals in future soil cultivation, thereby providing basic data for organic farming.

본 연구는 수경재배시스템에서 킬레이트 유기 미네랄 액상비료인 AGH-Ringer의 관주가 '죽향' 딸기의 생육과 과실 수량 및 품질에 미치는 영향을 조사하기 위하여 수행하였다. 그 결과 AGH-Ringer는 대조군에 비해 초장의 증가와 함께 엽장과 엽폭이 각각 0.47 cm, 0.7 cm 증가함에 따라 엽면적이 유의적으로 22.2% 증가하였다. 또한, AGH-Ringer에 의해 잎의 생체중과 건물중 및 엽색도를 측정하는 SPAD도 유의적인 증가를 보였다. 하지만 뿌리 길이와 뿌리의 건물중은 대조구와의 차이를 보이지 않았다. 과실 품질평가에서 AGH-Ringer는 대조구보다 과장의 변화는 보이지 않았지만 과 폭의 증가를 통해 과실의 무게가 과실 1개당 1.5 g이 증가하였다. 수확량에서도 AGH-Ringer에 의해 딸기 1묘당 수확량이 대조구에 비해 3.2개 더 수확하였으며 3.37 g 더 무거웠다. 딸기 품질평가 결과에서도 AGH-Ringer는 대조구 대비 과실의 색을 더욱 붉게 변화시키고 경도는 15.5% 증가시켰다. 하지만 가용성 고형물과 산 함량에는 영향을 주지 않았다. 상기와 같은 결과로 볼 때 '죽향' 딸기의 수경재배시스템에서 AGH-Ringer의 관주는 대조구로 사용된 무기 미네랄 양액비료보다 적은 미네랄 함량과 배양액 EC를 공급하고도 잎의 생육과 더불어 과실의 무게와 수확량을 증가시키고 가용성 고형물 증가를 통한 품질향상을 나타내었다. 결과적으로 본 연구결과를 통해 AGH-Ringer가 관행 무기 미네랄 양액비료 보다 생장과 생육에 효과적이고 농가의 비료 사용에 편리성(비침전)을 더한 유용한 양액비료임을 현장 실증을 통해 확인하였다.

Keywords

References

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