KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Effect of Irrigation of River Water and Swine Slurry Liquid Fertilizer on Kenaf (Hibiscus cannabinus L.) Growth Cultivated Using Soil Moisture Control System in Reclaimed Land

자동 수분 제어시스템을 이용한 간척지 케나프 재배시 하천수 및 액비 관개 효과

  • Kang, Chan-Ho (Jeonllabukdo Agricultural Research & Extension Services) ;
  • Lee, In-Sok (Jeonllabukdo Agricultural Research & Extension Services) ;
  • Lee, Jin-Jae (Jeonllabukdo Agricultural Research & Extension Services) ;
  • Kim, Hee-Jun (Jeonllabukdo Agricultural Research & Extension Services)
  • Received : 2020.10.05
  • Accepted : 2021.02.03
  • Published : 2021.03.01
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Abstract

Information and Communication Technology (ICT) remote soil moisture control system including soil sensing, automatic water supply chain, and remote alarming system was established on reclaimed land and operated stably. The system was operated using river water around the reclaimed land without fertilizer. On applying this system to control soil moisture, the kenaf germination rate was improved up to two times. Kenaf biomass was 4,748 kg/10a and was higher than that of untreated soil moisture management. When the nutritious liquid fertilizer was used, kenaf yield reached 8,390 kg/10a, which was lower than 10,848 kg/10a of the non-reclaimed land treated with standard chemical fertilizers. As the soil moisture was managed stably through the ICT remote soil moisture control system, the quality of the kenaf crop was improved, resulting in a 7% increase in dry weight, and a 11.5% increase in plant hardness. The estimated kenaf yield was 5,039 kg/10a when 800 tonnes of water were supplied by the ICT remote soil moisture control system with the stream water around Saemangeum reclaimed land without chemical fertilizers and organic matter.

1. 토양 센싱을 통한 환경정보의 습득과 일정 토양수분 이하가 되면 자동으로 물 공급이 이루어지도록 하는 자동수분제어 그리고 원격지에서 PC나 휴대폰을 통하여 시스템 운영을 확인할 수 있는 원격 자동 정밀 수분제어솔루션을 구성하여 운영한 결과 시스템이 안정적으로 운영되고 있음이 확인되었다. 2. 이 시스템을 적용하여 토양수분을 관리하면 케나프 발아율이 100%p 향상되었다. 간척지 노출 후 무경작 상태의 간척지 토양을 대상으로 비료 투입 없이 간척지 주변 하천수를 이용하여 정밀 수분제어솔루션을 운영하면 케나프 4,748 kg/10a 수확이 가능하여 토양수분 관리를 하지 않은 무처리에 비해서 수량이 106% 증가하였다. 3. 조건을 동일하게 하고 공급수를 하천수가 아닌 축분액비로 할 경우 케나프 생장에 필요한 비효 성분의 공급이 원활히 이루어져 케나프 수량이 8,390 kg/10a까지 증가하였다. 4. 자동 토양수분 조절을 통해 토양 수분이 지속적이고 안정으로 관리되면 케나프 수확물의 품질이 높아져 건물률이 7% 높아졌으며 식물체의 경도도 11.5% 증가하였다. 5. 무비료, 유기물 무투입 상태에서 케나프 추정 요수량 800톤을 새만금 간척지주변 하천수를 이용하여 자동조절수분시스템으로 공급할 경우 케나프 예측 수량은 5,039 kg/10a이었다.

Keywords

References

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