Water Use and Water Use Efficiency of Eucalypt Intercropped with Cassava in Watthana Nakorn District, Sa Kaeo Province

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Jetsada Wongprom
Chongrak Wachrinrat
Rabeib Srigongpan

Abstract

Water use and water use efficiency of the K7 and K51 eucalypt clones planted as intercropping with cassava were carried out in Watthana Nakorn District, Sa Kaeo province. The diameter at breast height (DBH), total height (H), and water use were also determined over 2-month intervals for the first two years. Annual water use and water use efficiency of 1- and 2 -year-old eucalypts were evaluated. A two sample t-test was used for statistical analysis.


Daily water use of 1- to 2-year-old eucalypts gradually increased in the morning and peaked at noon into the afternoon, then decreased in the evening and was the lowest during the night. Annual water use tended to increase with tree growth. For 2-year-old eucalypts, water use of the K7 and K51 clones was high during May-September and low during January-March. The annual water use of the K7 and K51 clones was not significantly different  (p>0.05).  Clone K51 had economic water use efficiency (WUEWS) and biological water use efficiency (WUEWT) higher than K7 (3.91 and 7.18 g.L-1, respectively).


 


Keywords: water use, water use efficiency, eucalyptus, cassava, Sa Kaeo Province

Article Details

How to Cite
Wongprom, J. . ., Wachrinrat, C. . ., & Srigongpan, R. . . (2022). Water Use and Water Use Efficiency of Eucalypt Intercropped with Cassava in Watthana Nakorn District, Sa Kaeo Province. Thai Journal of Forestry, 31(1), 20–25. Retrieved from https://li01.tci-thaijo.org/index.php/tjf/article/view/255647
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Original Articles