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.
이용수
초록· 키워드
오류제보하기
The System of Rice Intensification (SRI) is a new concept of increasing the yield of rice produced in farming. Therefore, we investigated the impacts of planting density on nutrient uptake as affected by SRI under no-till cropping system. The field was prepared as a randomized complete block design with three treatments: 10×10 cm, 20×20 cm and 30×30 cm planting densities. The root dry mass was significantly increased in the wider planting densities (p<0.05%). The highest grain yield was obtained in 20×20 cm planting density plot (p<0.05%) due to higher plant density per unit area and spikelets number per panicle. The total uptake amounts by rice plant were significantly higher in 20×20 cm planting density plot as 94.8 kg ha<SUP>-1</SUP> for T-N and 29.9 kg ha<SUP>-1</SUP> for P than other planting densities plots, but K and Mg uptake were significantly higher in 10×10 cm planting density plot (p<0.05%). In this study, our findings suggest that SRI should be considered as a new practice for the rice productivity.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusion
References
참고문헌 (28)
참고문헌 신청
Altieri, M.A / 2002 / Agroecology,In the science of natural resource management for poor farmers in marginal environments / Agr. Ecosyst. Environ 93:1~24
Armstrong, W / 1985 / A critical oxygen pressure for root extension in rice / J. Exp. Bot 36:1573~1582
Balesdent, J / 2000 / Relationship of soil organic matter dynamics to physical protection and tillage / Soil Till. Res 53:215~230
Balesdent, J / 1990 / Effects of tillage on soil organic carbon mineralization estimated from 13C abundance in maize fields / Soil Sci 41:587~596
Batuvitage, G.P / Adaptation of the system of rice intensification in Sri Lanka
Armstrong, W / 1985 / A critical oxygen pressure for root extension in rice / J. Exp. Bot 36:1573~1582
Balesdent, J / 2000 / Relationship of soil organic matter dynamics to physical protection and tillage / Soil Till. Res 53:215~230
Balesdent, J / 1990 / Effects of tillage on soil organic carbon mineralization estimated from 13C abundance in maize fields / Soil Sci 41:587~596
Batuvitage, G.P / Adaptation of the system of rice intensification in Sri Lanka
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UCI(KEPA) : I410-ECN-0101-2014-521-000706144