02276cas a2200253 a 450000500170000000800410001703500150005810000120007324500550008526000520014030000100019249000270020250001520022950200570038152012470043865000170168565000200170270000400172270000520176270000470181471000370186181000590189885600650195720260818095017.0110903s1981    th uu|m rtt   0|  a1eng d  a.b102277990 aHarsono10aEffect of monoculture and intercropping on erosion  aBangkok :bAsian Institute of Technology,c1981  a43 p.1 aThesis ;vno. AE-81-03  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development  aThesis (M.Sc.) - Asian Institute of Technology, 1981  aA field experiment was conducted on the sandy loam soil of the volcanic ash of Merapi volcano to investigate the effect of monoculture and inter cropping on soil erosion. The experiment was carried out in Yogyakarta, Indonesia during the rainy season of 1980-81. The experimental design was  a randomized complete block design with three replicates. A regression analysis and analysis of variance were employed to compare the difference  between the treatments.  Intercropping of rice & peanut and intercropping of rice & soybean were effective in reducing erosion and run-off, The intercropping of rice & maize  was the only one which showed higher erosion and run-off than the monoculture of rice. The highest erosion and run-off was found in the bare soil. Within  the intercropping systems, the intercropping of rice & peanut showed the lowest and the intercropping of rice & maize showed the highest erosion and  run-off. The erosion and run-off in the intercropping of rice & peanut were 8. 4 ton ha-1 (O. 6 mm of soil). and 97 mm, respectively. The monoculture of  rice produced 13. 0 ton ha-1 of erosion ·.and 169 mm of run-off, The erosion and run-off from the bare soil were 29.8 ton ha-1 (2.3 mm of soil) and 241 mm, respectively. 0aSoil erosion 0aCompanion crops1 aOlesen, Svend Elsnab, eChairperson0 aApichart Anukularmphai, eExamination Committee0 aEppendorfer, W.H., eExamination Committee2 aUSAID Asean, eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. AE-81-03  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B21506