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Correlation between the Distribution of Nematodes and Soil Physiochemical Characteristics in Coffee Rejuvenation Areas |
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| รหัสดีโอไอ | |
| Creator | Phan Thi Thanh Huyen, Pham Quy Giang, Nguyen Van Toan, Pham The Trinh |
| Title | Correlation between the Distribution of Nematodes and Soil Physiochemical Characteristics in Coffee Rejuvenation Areas |
| Publisher | The Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2561 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 11 |
| Journal No. | 1 |
| Page no. | 141-156 |
| Keyword | coffee rejuvenation, correlation, nematodes, soil physicochemical characteristics |
| ISSN | 2586-8861 |
| Abstract | This study investigated the relationship between physicochemical characteristics of soil and the distribution of nematodes in coffee rejuvenation areas in Krong Pak and Krong Nang Districts of Daklak Province, one of the main coffee-growing regions of Vietnam. Thirty soil samples were collected at the top soil layer in each district for soil properties analysis and nematode analysis, and Pearson Correlation was used to determine the correlation between nematode distribution and soil physiochemical properties. It was found that after a coffee production cycle, clay content in topsoil layer was still quite high at 39.40% and 50.48% in Krong Pak and Krong Nang respectively. Chemical properties such as acidity (pHKCl) was 4.42 and 4.12; magnesium was 1.2 and 1.36 me/100 g soil; organic content was 3.71% and 2.42%. Total nitrogen was 0.18% and 0.15%. Bio-available phosphorus content was 27.11 and 32.9 mg / 100 g soil. 10 species of harmful nematodes were found in the study area, of which 6 species were present in both districts. The density of nematodes including Pratylenchus spp, Meloidogyne exigua and Rotylenchulus reniformis was negatively correlated with the content of organic matter and Magnesium. Meloidogyne exigua also had a negative correlation with the contents of sand and clay. The other seven nematode species were found to not significantly correlate with any of the soil physiochemical properties investigated. The finding of this study could be useful for farmers as well as policy makers in designing appropriate cultivation methods in order to reduce the nematode-caused diseases of coffee and to maintain soil quality and health of agricultural ecosystem. |
