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.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.12
- 수록면
- 674 - 683 (10page)
이용수
초록· 키워드
오류제보하기
The frequency and intensity of soil moisture stress associated with climate change has increasing, and the stability of field crop cultivation has decreasing. This experiment was conducted to investigate the effect of soil moisture management method on growth and yield of corn. Soil moisture was managed at the grade of WSM (wet soil moisture, 34.0~42.9%), OSM (optimum soil moisture, 27.8~34.0%), DSM (dry soil moisture, 20.3~27.8%), and ESM (extreme dry moisture, 16.6~20.3%) during V8 (8th leaf stage)-VT (tasseling stage). After VT, irrigation was limited. The treated amount of irrigation was 54.1, 47.7, 44.0 and 34.5% of total water requirement, respectively. The potential evapotranspiration during the growing period was 3.29 mm day<SUP>-1</SUP>, and upward movement of soil water was estimated by the AFKAE 0.5 model in the order of ESM, DSM, OSM, and WSM. We could confirm this phenomenon from actual observations. There was no significant difference in leaf characteristics, dry matter, and primary productivity depending on the level of soil moisture, but leaf development was delayed and dry weight decreased in DSM. However, dry weight and individual productivity of DSM increased after irrigation withdrawal compared to that of OSM. In DSM, ear yield and number of kernels per ear decreased, but water use efficiency and harvest index were higher than other treatments. Therefore, it is considered that the soil moisture is concentratedly managed before the V8 period, the V8-VT period is controlled within the range of 100 to 500 kPa (20.3~27.8%), and no additional irrigation is required after the VT.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (16)
참고문헌 신청
Abrescht, D.G. and P.S. Carberry. 1993. The influence of water deficit prior to tassel initiation on maize growth, development and yield. Field Crop Res. 31:55-69.
Aparicio-Tejo, P.M. and J.S. Boyer. 1983. Significance of accelerated leaf senescence at low water potentials for water loss and grain yield in maize. Crop. Sci. 23:1198-1202.
Aslam, M., M.S.I. Zamir, I. Afzal, M. Yaseen, M. Mubeen, and A. Shaoib. 2013. Drought stress, its effect on maize development of drought tolerance through potassium application. Cercet?ri Agronomic in Moldova. Vol. XLVI, No.2(154):99-114.
Classen, M.M. and R.H. Shaw. 1970. Waster deficit effects on corn. Ⅱ. Grain components. Agron. J. 62:652-655.
Eom, K.C., S.H. Park, and S.Y. Yoo. 2013. Water requirement of maize according to growth stage. Korean J. Soil Sci. Fert. 46:16-22.
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UCI(KEPA) : I410-ECN-0101-2018-523-001677477