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논문 기본 정보

자료유형
학술저널
저자정보
Minyoung Kim (Rural Development Administration) Seounghee Kim (Rural Development Administration) Youngjin Kim (Rural Development Administration) Yonghun Choi (Rural Development Administration) Myungchul Seo (Rural Development Administration)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제48권 제5호
발행연도
2015.10
수록면
499 - 504 (6page)

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초록· 키워드

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Decision making by farmers regarding irrigation is critical for crop production. Therefore, the precision irrigation technique is very important to improve crop quality and yield. Recently, much attention has been given to remote sensing of crop canopy temperature as a crop water-stress indicator, because it is a scientifically based and easily applicable method even at field scales. This study monitored a series of time-variant canopy temperature of cucumber under three different irrigation treatments: under-irrigation (control), optimal-irrigation, and over-irrigation. The difference between canopy temperature (T<SUB>c</SUB>) and air temperature (T<SUB>a</SUB>), T<SUB>c</SUB> – T<SUB>a</SUB>, was calculated as an indicator of cucumber water stress. Vapor pressure deficit (VPD) was evaluated to define water stress on the basis of the temperature difference between leaf and air. The values of T<SUB>c</SUB> – T<SUB>a </SUB>was negatively related to VPD; further, cucumber growth in the under- and over-irrigated fields showed water stress, in contrast to that grown in the optimally irrigated field. Thus, thermal infrared measurements could be useful for evaluating crop water status and play an important role in irrigation scheduling of agricultural crops.

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Introduction
Materials and Methods
Results and Discussion
Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2016-521-002013077