초록 ▼

III. 연구개발의 내용 및 범위
□ 신간척지 벼 재배시 모 종류별 생육 및 수량(‘10~’11)
○ 시험품종 : 청호벼
○ 시험장소 및 토양 : 새만금 계화포장(문포통)
○ 토양염농도 : 0.3~0.5%
○ 처리내용 : 어린모, 치묘, 중묘, 폿트묘
○ 주요수행내용 : 생육, 수량구성요소 및 수량, 품질
□ 신간척지에서 염해경감 및 등숙률 향상을 위한 완전낙수시기 구명(‘10)
○ 시험품종, 장소, 토양조건은 위 시험과 동일
○ 처리내용 : 출수 후 25, 30, 35, 40, 45

III. 연구개발의 내용 및 범위
□ 신간척지 벼 재배시 모 종류별 생육 및 수량(‘10~’11)
○ 시험품종 : 청호벼
○ 시험장소 및 토양 : 새만금 계화포장(문포통)
○ 토양염농도 : 0.3~0.5%
○ 처리내용 : 어린모, 치묘, 중묘, 폿트묘
○ 주요수행내용 : 생육, 수량구성요소 및 수량, 품질
□ 신간척지에서 염해경감 및 등숙률 향상을 위한 완전낙수시기 구명(‘10)
○ 시험품종, 장소, 토양조건은 위 시험과 동일
○ 처리내용 : 출수 후 25, 30, 35, 40, 45, 50일 낙수
○ 주요수행내용 : 토양염농도, 토양경도, 수량구성요소 및 수량
□ 신간척지 벼 재배에 알맞은 질소시비량 구명(‘11~’12)
○ 시험품종, 장소, 토양조건은 위 시험과 동일
○ 질소시비량 : 5처리(진단시비, 11, 14, 17. 20kg/10a)
○ 주요수행내용 : 수량구성요소 및 수량, 미질

Abstract ▼

○ Title : Study of Adaptable Seedling Type for Transplanting Culture of Rice Paddy Field in the Newly Reclaimed Land
This research was carried out to adaptable seedling type when transplanting culture of rice in order to stabilize rice yield. The brief of this research to transplant the seedling

○ Title : Study of Adaptable Seedling Type for Transplanting Culture of Rice Paddy Field in the Newly Reclaimed Land
This research was carried out to adaptable seedling type when transplanting culture of rice in order to stabilize rice yield. The brief of this research to transplant the seedling divided into 10-day old seedling, 20-day old seedling, 30-day old seedling, 33-day old pot seedling in the field of Saemangeum Gyehwa, newly reclaimed land were following;
Soil salinity content in average 2 years was reduced to 0.04% after transplanting time from 0.16% before transplanting time. Heading date of seedling type was Aug. 14 at 33-day old pot seedling compared to 2 days at 30-day old seedling, 3 days at 20-day old seedling, 5 days late at 10-day old seedling. Lodging index was highest at 30-day old seedling, and also, field lodging was half. Percent ripened grain and 1,000 grain weight were similar and panicle number was higher 20-day old seedling > 10-day old seedling > 33-day old pot seedling > 30-day old seedling. Rice yield was higher 10-day old seedling = 20-day old seedling > 33-day old pot seedling > 30-day old seedling. Head rice ratio was higher in 20-day old seedling > 30-day old seedling = 10-day old seedling > 33-day old pot seedling. Amylose content and protein content was not different between in seedling types.
With this results, the adaptable seedling type in newly reclaimed land to stable rice production is 10-day old seedling and 20-day old seedling.
Key Words: Rice, Seedling, Yield, Newly Reclaimed Land
○ Title : Establishment of Perfect-Drainage Period for Reduction of Salt Injury and Improvement of Grain Filling Ratio in the Newly Reclaimed Land
This research was conducted to find out adequate perfect drainage time to secure stable rice yield and improve rice quality by 5days interval treatment of perfect drainage time from 25days to 50days after heading date at Saemangeum Gyehwa field newly reclaimed land in 2010. Results were followings;
Accumulation temperature after heading date in 2010 was rised about 100℃ and amount of precipitation was reduced a little compared to normal year harvesting time. Average panicle number was 16.5 and spikelet per panicle was 88. Perfect drainage time treatment after 40~50days was 3% higher in percent ripened grain and 0.6g heavier in 1,000 grain weight than treatment after 25~35days. There was no difference of rice yield between perfect drainage time treatment after 25days and 30~35days, but 7~8% was higher in treatment after 40~50days than 25days. Head rice ratio was the highest in treatment after 35days and the sooner perfect drainage time, the lower protein content. There was high-degree negative correlation between soil moisture and soil hardness, EC in soil was high as time pass.
With this results, adequate perfect drainage time in newly reclaimed land to secure rice production concluded with 40~50days after heading date.
○ Title : Study of Adaptable Nitrogen Fertilizer Rate for Transplanting Culture of Rice Paddy Field in the Newly Reclaimed Land
This study was conducted to identify the optimal nitrogen topdressing quantity for the mechanical cultivation of rice in newly reclaimed land, in light of salt damage and rice yield. In this regard, the test areas were topdressed with nitrogen at 11kg/10a, 14kg/10a, 17kg/10a, 20kg/10a and diagnostic fertilization respectively.
The average of soil salinity fell from 0.06% to 0.03% within 2 years after flooding supply and rice transplantation. The heading stage reached in August 16 in land topdressed with nitrogen at a rate of 11kg/10a or 14kg/10a, but reached one day later, in August 17 at a rate of 17kg/10a or 20kg/10a. The lodging index tended to rise in proportion to nitrogen topdressing quantity; any of rice plants were not lodged at a rate of 11kg/10a, but the lodging index was 1 and 3 at 14kg/10a and 17kg/10a respectively. At 20kg/10a, however, over half of rice plants were lodged with the lodging index 7. The panicle number per hill was the highest at 17kg/10a, followed by the diagnostic fertilization, 20kg/10a, 14kg/10a and 11kg/10a. The percentage of ripened grains was similar to the weight of 1,000 grains of brown rice, and thus the rice yield was the highest at the diagnostic fertilization and at 17kg/10a equally, followed by 14kg/10a, 20kg/10a and 11kg/10a. The percentage of perfect kernels was the highest at 14kg/10a, followed by the diagnostic fertilization and 11kg/10a, 17kg/10a, and 20kg/10a. The amylose content was not significantly related to nitrogen topdressing quantity, but the protein content was closely related to it.
Altogether, the optimal nitrogen topdressing quantity was found to be 16 to 18kg/10a on the premise that rice seedlings would be mechanically transplanted in newly reclaimed land.
Key words: Rice, nitrogen fertilizer, growth, yield, newly reclaimed land

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 요약문 ... 3
• SUMMARY ... 5
• 목차 ... 7
• 제1장 서 론 ... 8
• 제1절 신간척지 벼 재배시 모 종류별 생육 및 수량 구명 ... 8
• 제2절 신간척지에서 염해경감 및 등숙률 향상을 위한 완전낙수시기 구명 ... 8
• 제3절 신간척지 벼 재배시 적정 질소시비량 구명 ... 9
• 제2장 국내외 기술개발 현황 ... 10
• 제1절 신간척지 벼 재배시 모 종류별 생육 및 수량 구명 ... 10
• 제2절 신간척지에서 염해경감 및 등숙률 향상을 위한 완전낙수시기 구명 ... 10
• 제3절 신간척지 벼 재배시 적정 질소시비량 구명 ... 11
• 제3장 연구개발수행 내용 및 결과 ... 12
• 제1절 신간척지 벼 재배시 모 종류별 생육 및 수량 구명 ... 12
• 제2절 신간척지에서 염해경감 및 등숙률 향상을 위한 완전낙수시기 구명 ... 16
• 제3절 신간척지 벼 재배시 적정 질소시비량 구명 ... 21
• 제4장 연구개발목표 달성도 및 대외기여도 ... 27
• 제1절 목표대비 달성도 ... 27
• 제2절 정량적 성과 ... 28
• 제5장 연구개발결과의 활용계획 ... 29
• □ 영농활용 ... 29
• □ 학회발표 및 논문게재 ... 29
• 제6장 연구개발과정에서 수집한 해외과학기술정보 ... 29
• 제7장 기타 중요 변동사항 ... 29
• 제8장 국가과학기술종합정보시스템에 등록한 연구장비 현황 ... 29
• 제9장 참고문헌 ... 30
• <참고> 주요 연구성과 요약 ... 31