인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
This study compares direct-seeded rice (DSR) with transplanted rice under three different irrigation methods: conventional flooding, saturation, and alternate wetting and drying. The findings indicate that DSR outperforms transplanted rice in several key aspects. Specifically, DSR exhibited a greater number of tillers (635-650) and panicles (510-529) m<sup>- 2</sup>, along with lower spikelet sterility (9.9-10.8%). Grain yield ranged from 6.69 to 7.8 t ha<sup>-1</sup> for DSR, surpassing that of transplanted rice, which yielded between 5.59 and 6.18 t ha<sup>-1</sup>. Moreover, DSR demonstrated 11-25% higher water productivity, highlighting its greater efficiency in water usage. Economic analysis revealed that DSR also offered superior returns, with a profit per rupee invested of 2.2, compared to 1.48 for transplanted rice. While irrigation method did not significantly impact growth or yield, conventional flooding led to a 28% reduction in water productivity compared to the saturation method and a 25% reduction compared to the alternate wetting and drying method. In terms of benefit-cost ratio, while the differences were modest, the saturation method recorded slightly higher values. Overall, the study indicates that adopting DSR with either the saturation or alternate wetting and drying irrigation methods can lead to higher yields, improved economic returns, and increased water productivity in temperate environments, positioning it as a more sustainable and efficient alternative to transplanted rice cultivation.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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