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Abstract The results obtained yielded useful and clear composting of to~vn refuse with compared with farmyard manure under aerobic condition, and t and microbiologi~al changes i yield. In addition, concerning the with we.ter as the same treatments r effect on chemical il as well as on wheat t organic waste materials (town refuse + water ,town + sewage, farmyard manure + water or farmyard manure + were tested for the production of biogas under condition. The physical, microbiol chemical changes occUlt’ring in the different tr town refuse + water, town refuse + sewage, yard manure + water or farmyard manure + sewage) du a composting period of four month,s were studi ed. different organic waste materi8ls were put in heaps ( m2/ton). In general, &11 numbers of :licro-organisms c :d,buting to soil ferti- lity and appreciable amount ~03 -N, total N, organic c~rbon and humus we However, the fermentation of the same tr-ee.tment nder anaerobic con- di tions reve aled the pl’oductj o:r.!. ppreciable amount s of methane (CH4) during 58 days ation period. In 8 pot experiment; each ost WeS applied to soil at the rate of 2% (w/w) and the robiological and chemica.l changes during 90 days ’e inv8stlge.ted. In general, the applica.tion of the CdlIlPObt :r’l~HulttH.l of the same obtained compost (at 2% (w/w) on certain soil micro-organisms( tal counts of bacteria, actinomycetes, fungi, aerobic ulose-decorr.poser, Azotobacter wheat yield, was also studied. In general, the may be summarized as follows: 1- Spontanious rise in te biological activities of ton) reached the maximum days ,then declined till the period (120)days. The maxium ature as a result of the the composted heaps (6 m2 C) after seven to ten of the experimental mperature in the depth of 90 em was 68.3°0 in the heaps of town refuse + sewage after 7 days, 73°0 in the heaps of armyard m~ure + water and 70°0 in the heaps of fa yard manure . |