초록 ▼

토양 및 원격탐사검정에 의한 가축분뇨 액비의 적정 시비체계확립을 위하여 DPC공법처리 액비의 유·무기성분 함량평가 및 액비 시용에 따른 토양 양분유효화 평가를 실시하고, 토양 검정 및 원격탐사 검정에 의한 액비 시비수준별·품종별 벼 생산력 평가를 실시하여 DPC공법을 이용하여 생산한 가축분뇨 액비의 밑거름·이삭거름 시비체계를 확립하여 맞춤형 액비를 생산하고 농가 공급체계 확립한다.
원격탐사검정을 통한 벼 이삭거름 적정 시비량 확립을 위하여 수확된 벼의 질소흡수량을 예측할 수 있는 효율적 원격탐사센서와 반사율지표의 선발 및 검정

토양 및 원격탐사검정에 의한 가축분뇨 액비의 적정 시비체계확립을 위하여 DPC공법처리 액비의 유·무기성분 함량평가 및 액비 시용에 따른 토양 양분유효화 평가를 실시하고, 토양 검정 및 원격탐사 검정에 의한 액비 시비수준별·품종별 벼 생산력 평가를 실시하여 DPC공법을 이용하여 생산한 가축분뇨 액비의 밑거름·이삭거름 시비체계를 확립하여 맞춤형 액비를 생산하고 농가 공급체계 확립한다.
원격탐사검정을 통한 벼 이삭거름 적정 시비량 확립을 위하여 수확된 벼의 질소흡수량을 예측할 수 있는 효율적 원격탐사센서와 반사율지표의 선발 및 검정방법을 확립하고, 벼 이삭거름 질소시비 추천을 위한 원격탐사 최적검정시기 결정하며 원격탐사 반사율지표 검정법에의한 질소시비 수준 예측한다. 또, 품종 및 년차간 환경변이를 대비한 원격탐사 반사율지표의 상대평가방법과 상대평가 원격탐사 검정법에 의한 이삭거름 질소시비량 추천모델을 개발하여 이삭거름 질소 적정시비량에 의한 쌀 단백질 함량 조절방법 확립한다.

Abstract ▼

Foundation and top dressing rate of fertilizer recommendations by ground-based remote sensor using the amount of swine waste, 0, 80, 100, 120% fertilizer levels were fertilized.
Application of swine waste early growing season plant height and tiller was less than the conventional culture but 50th

Foundation and top dressing rate of fertilizer recommendations by ground-based remote sensor using the amount of swine waste, 0, 80, 100, 120% fertilizer levels were fertilized.
Application of swine waste early growing season plant height and tiller was less than the conventional culture but 50th days after planting showed a similar level. Yield and protein contents of swine waste fertilizers are more than conventional culture, especially depending on the level of spraying liquid manure is abundant. According to remote sensing measurements of the growth in top dressing liquid manure Applications of Remote Sensing devices measured the nutritional status of chemical fertilizers, liquid manure, non-fertilizer in order reflectance values were measured in quantity and quality do not see significant differences in cultivation practices did. A field experiment was conducted to select optimum reflectance indices by ground-based remote sensor as a available index for estimation of rice production and prediction of top dressing rate of N fertilizer in growing season. Four rates of N fertilizer were applied with 0%, 70%, 100%, and 130% of recommended rate by soil test. Three cultivars of rice(Oriza sativa L) such as Chucheong and Joonam in 2010 and Chucheong and Hopoom in 2011 were planted on May and harvested on October.
Reflectance indices were determined with four types of active sensors using modulated light, respectively such as Crop CircleTR red and amber version and Green SeekerTR red and green version. Sensing angle from the sensor head to the canopy of rice plant was adjusted to three type as 45, 70, and 90 degree in order to find optimum angle to promote estimation efficiency. The measurement value of reflectance index by remote sensor showed difference among the cultivars suggesting that estimation should be separately approached based on the cultivar. Even though the measurement value of reflectance index at the early growth stage was increased with lowering angle from 90degree to 45 degree, estimation efficiency at critical season exhibited a tendency to be better at 70 and 90 degree than 45 degree. The reflectance indices obtained from remote sensor in growing season prior to top dressing were significantly correlated with the boimass of rice plant at the same time.
Especially reflectance indices at the 52nd and 59th day after planting as a critical season were significantly correlated with dry weight, nitogen uptake, and yield of Chucheong, Joonam, and Hopoom rice cultivar, respectively at harvesting. Similarly sufficiency indices calculated fron the same reflectance indices at the critical season were also positively correlated with application rates of nitrogen fertilizer as a favorable regression equation explaining 80% in 2010 and 66% in 2011 for Chucheong, 57% for Joonam, and 34% for Hopoom. Consequently this regression model estimated from reflectance index at the 52nd or 59th day after planting as a critical season could be a useful tool to determine the optimum application rate of N fertilizer for top dressing of rice plant as a non-destructively and real-time test.

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 요약문 ... 3
• SUMMARY ... 5
• 제1장 서 론 ... 6
• 제2장 국내외 기술개발 현황 ... 8
• 제1절 국내 기술개발 현황 ... 8
• 제2절 국외 기술개발현황 ... 8
• 제3절 국내외 연구현황 비교 및 필요연구 분야 ... 8
• 제3장 연구개발수행 내용 및 결과 ... 10
• 제1절 재료 및 방법 ... 10
• 제2절 결과 및 고찰 ... 12
• 제3절 종합고찰 ... 38
• 제4절 적요 ... 41
• 제4장 연구개발목표 달성도 및 대외기여도 ... 42
• 제1절 목표대비 달성도 ... 42
• 제2절 정량적 성과 ... 42
• 제5장 연구개발결과의 활용계획 ... 43
• 제6장 중요 변동사항 ... 44
• 제7장 참고문헌 ... 45