Table 1. Differential] Soil Microbial Populations for Three Soil Depth Segments Before Planting and at Harvest* FUNGI Soil Total Numbers per Gram Segment (cm) Dry Soil (Thousands) TL Depth 00|0-3 m4 3-6 w o{6-9 m 4|0-9 Au 0-3 in 3-6 2 $|6-9 8 0-9 % of Oven- Mucors 4.2 + 1.6 9.6 + 3.2 12.4 + 4.3 22 + 10 + 10 + 8.7+3.0 27.9 12.6 10.7 17.1 + + + + 8.1 3.1 3.7 5.0 ts BACTERTA he hs he Asper- Pent- Dema- Others 6 2 4 7 +4 25 + 8 27 +7 ;,11 +4 4 36 + 10 42 + 12 22 £4 2+ 1 1+ 0. 39 +7 27 +5 21 +5 48+ 7 28+ 5 26 + 11 34 + 8 14 +4 10+ 4 2+ 9+3) 22 + 10 7+ 2 31+ :12 20+ 8 341 2549 19 +7 16 + 6 17 29 23 23 gtllt 144+ 4);20+6/ etllia 30+ titaceae 9] 842 *Al11 values are expressed as the average + 1 standard error. 29 + 6 + 5 + 8 + 7 +7 Total Numbers per Gram otreptomyces Numbers per Gram hs Dry Soil (Millions) Dry Soil (Millions) of Oven- 3.9 + 4.7 + 4.5 + 4.4 + 101.3 37.4 16.8 51.8 0.5 0.6 0.6 0.6 + 30.2 + 13.4 + 5.1 + 16.2 of Oven~ 0.9 + 0.02 1.8 + 0.02 2.0 + 0.02 24 + 3 39 + 3 44 4 3 9,1 4.5 3.0 6.7 9+4 12 + 3 18 + 3 13 + 3 1.6 + 0.02 41.2 + 0.4 + 0.2 + 0.5 36 + 3