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2019 Vol.52, Issue 4 Preview Page

Original research article

Relationship between Soil Chemical Properties and Algae Growth at Rice Paddy Field
Hui Su Bae1*
,
Seung Hyeon Ahn1
,
Jaebok Hwang1
,
Hyeonsoo Jang1
,
Jong Tak Youn1
,
Uk Han Kim1
,
Tae Seon Park1
,
Beomsoo Bae2
1National Insititute of Crop Science, RDA
2Global Research Co., Ltd.
* Corresponding Author
30 November 2019. pp. 413-419
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Abstract

Influences of various soil chemical properties on the algae growth (Chl-a concentration) at the paddy field were statistically analyzed using soil and water samples collected from 2016 to 2018 in June. As a result of correlation analysis between soil chemical properties and Chl-a concentration, significantly positive relationships were observed in pH, EC and SiO2. To identify the key soil chemistry variables and predict Chl-a concentration, factor analysis was done and three principal components (PCs) with eigenvalues > 1 were found, which accounting for 60.9% of the original variance. The PC1 included Mg2+, Ca2+ and Avali.-P. The PC2 included pH, Na+, K+, and Avail.-SiO2. PC3 included OM and T-N. According to the result of linear regression analysis based on the factors by factor analysis, the total explanation amount was 18.0% and only PC3 had an significant influence on the decrease of Chl-a concentration. These result will be used for soil management to prevent algae blooms at rice paddy field.

Rotated factor pattern matrix between chemical properties of soil and chlorophyll-a at rice paddy field.

Indicators Component
PC1 PC2 PC3
Mg2+0.837 0.180 0.171
Ca2+0.769 0.263 0.198
Avail.-P2O5-0.713 0.251 0.180
EC 0.566 0.545 0.113
pH -0.018 0.783 -0.093
Na+ -0.047 0.637 0.126
K+ 0.370 0.506 0.330
Avail.-SiO2 0.274 0.560 -0.005
OM -0.056 -0.072 0.847
T-N 0.222 0.161 0.813
Eigenvalue 3.3 1.4 1.4
Proportion (%) 33.1 14.1 13.6
Cumulative (%) 33.1 47.3 60.9

Keywords
Algae
Paddy field
Soil chemical properties
Factor analysis

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Information
  • Publisher :Korean Society of Soil Science and Fertilizer
  • Publisher(Ko) :한국토양비료학회
  • Journal Title :Korean Journal of Soil Science and Fertilizer
  • Journal Title(Ko) :한국토양비료학회 학회지
  • Volume : 52
  • No :4
  • Pages :413-419
  • Received Date : 2019-08-26
  • Revised Date : 2019-09-26
  • Accepted Date : 2019-09-27
  • DOI :https://doi.org/10.7745/KJSSF.2019.52.4.413
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