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The Toxicity of Nitrogen Dioxide Gas on Fig Plant  

Kim, Yoo-Hak (National Academy of Agricultural Science)
Choi, Byeong-Ryeol (National Institute of Crop Science, Functional Cereal Crop Research Div.)
Kim, Myung-Sook (National Academy of Agricultural Science)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.43, no.6, 2010 , pp. 978-980 More about this Journal
Abstract
This study was conducted to observe the cause of injury of fig plant. Nitrogen dioxide gas can be evolved at low pH or reduced in soil. Fig plant cultivated with nutrient solution was wilted or withered. Injury symptom for nutrient solution containing nitrous acid was worse as pH of soil decreased. However, increase in pH of nutrient solution treated with increasing $Ca(OH)_2$ solution prevented nutrient solution from producing nitrogen dioxide gas. Recovery of the fig plant by pH increase indicated that the cause of injury was nitrogen dioxide gas.
Keywords
Fig plant; Nitrous acid toxicity;
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