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008 110903s1981 th uu|m rtt 0| a1eng d
035 _a.b10227799
099 9 _aAIT Thesis no.AE-81-03
100 0 _aHarsono
245 1 0 _aEffect of monoculture and intercropping on erosion
260 _aBangkok :
_bAsian Institute of Technology,
_c1981
300 _a43 p.
490 1 _aThesis ;
_vno. AE-81-03
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development
502 _aThesis (M.Sc.) - Asian Institute of Technology, 1981
520 _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 ยท.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.
650 0 _aSoil erosion
650 0 _aCompanion crops
700 1 _aOlesen, Svend Elsnab,
_eChairperson
700 0 _aApichart Anukularmphai,
_eExamination Committee
700 0 _aEppendorfer, W.H.,
_eExamination Committee
710 2 _aUSAID Asean,
_eScholarship Donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. AE-81-03
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B21506
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