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Research Paper | Agricultural Studies | Vietnam | Volume 12 Issue 7, July 2023 | Popularity: 4.8 / 10
Measures to Reduce Soil Erosion on Cassava Farms in Central Highlands of Vietnam
Nguyen Thi Thao Nhung, Nguyen Van Binh, Trinh Cong Tu
Abstract: Cassava has become an important crop in developing countries. However, growing cassava on sloping land can result in serious erosion due to the wide spacing and thin canopy. This study discusses measures to reduce soil erosion on cassava farms in Central Highlands, Vietnam. A field experiment on sowing direction (horizontal strip and contour) and intercropping (0, 1, 2 and 3 peanut rows between 2 cassava rows) was conducted on sloping land with a 15% grade during 2021-2022. The treatments were arranged in a split-plot design with 3 replications. The results showed that the contour growing and intercropping peanut among cassava rowsreduced the rate of soil loss in comparison with strip planting and monoculture. Intercropping reduced cassava productivity but produced peanuts, keeping the total income balanced. In addition, growing peanut fixed nitrogen and produced biomass that contained OM and minerals for better soil fertility. The treatment that had the highest economic and environmental effectiveness was contour sowing and intercropping 3 peanut rows between 2 cassava rows.
Keywords: cassava, contour, erosion, intercropping, productivity
Edition: Volume 12 Issue 7, July 2023
Pages: 1158 - 1162