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http://dx.doi.org/10.7745/KJSSF.2012.45.6.925

Growth Inhibition of Cucumber by Absorbing Excess Al at Low Soil pH  

Kim, Yoo-Hak (Soil and Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration)
Kim, Myung Sook (Soil and Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration)
Kang, Seong Soo (Soil and Fertilizer Management Division, National Academy of Agricultural Science, Rural Development Administration)
Lee, Hyeong Yong (Agricultural Technology Center of Pyoengteak)
Publication Information
Korean Journal of Soil Science and Fertilizer / v.45, no.6, 2012 , pp. 925-927 More about this Journal
Abstract
On-site diagnosis applied to soil having a symptom of yellowing and whitening in cucumber leaf and stem. Soil pH determined 4.2 by methods of on-site analysis and 4.5 by soil test analysis. High aluminum in soil solution extracted with water saturation was detected. Leaf and stem tissue were abundant in Al content but not in Ca. Also, N content of leaf and stem was low compared to normal N ranges. This symptom of cucumber assumed to be from the Al and nitrous acid gas toxicity by low soil pH and Eh. Conclusionally, symptom in leaf and stem of cucumber was alleviated and cucumber normally recovered during cultivation period by applying calcium hydroxide solution to correct soil pH up to 6.5. These results showed that low soil pH resulted in aluminum toxicity and N deficiency to plant growth in on-site farming.
Keywords
Low pH; Aluminium toxicity; Cucumber; On-site soil diagnosis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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