Jaka Suyana and Komariah and Masateru Senge
Conservation Techniques for Soil Erosion Control in TobaccoBased Farming System at Steep Land Areas of Progo Hulu Subwatershed, Central Java, Indonesia
287 - 294
2010
4
5
International Journal of Agricultural and Biosystems Engineering
https://publications.waset.org/pdf/7755
https://publications.waset.org/vol/41
World Academy of Science, Engineering and Technology
This research was aimed at determining the impact of conservation techniques including bench terrace, stone terrace, mulching, grass strip and intercropping on soil erosion at tobaccobased farming system at Progo Hulu subwatershed, Central Java, Indonesia. Research was conducted from September 2007 to September 2009, located at Progo Hulu subwatershed, Central Java, Indonesia. Research site divided into 27 land units, and experimental fields were grouped based on the soil type and slope, ie 30, 45 and 70, with the following treatments 1) ST0 stone terrace (control); 2) ST1 stone terrace Setaria spacelata grass strip on a 5 cm height dike at terrace lips tobacco stem mulch with dose of 50 (7 ton ha); 3) ST2 stone terrace Setaria spacelata grass strip on a 5 cm height dike at terrace lips tobacco stem mulch with dose of 100 (14 ton ha); 4) ST3 stone terrace tobacco and red bean intercropping tobacco stem mulch with dose of 50 (7 ton ha). 5) BT0 bench terrace (control); 6) BT1 bench terrace Setaria spacelata grass strip at terrace lips tobacco stem mulch with dose of 50 (7 ton ha); 7) BT2 bench terrace Setaria spacelata grass strip at terrace lips tobacco stem mulch with dose of 100 (14 ton ha); 8) BT3 bench terrace tobacco and red bean intercropping tobacco stem mulch with dose of 50 (7 ton ha). The results showed that the actual erosion rates of research site were higher than that of tolerance erosion with mean value 89.08 tonhayear and 33.40 tonhayear, respectively. These resulted in 69 of total research site (5,119.15 ha) highly degraded. Conservation technique of ST2 was the most effective in suppressing soil erosion, by 42.87, following with BT2 as much 30.63. Others suppressed erosion only less than 21.
Open Science Index 41, 2010