. Some effects of a harmful organic soil constituent . 0 66 0 34 19 0 81 56 0 44 14 0 86 18 50 20 30 86 4 10 25 31 44 75 4 21 17 41 42 21 50 50 0 54 46 0 36 64 0 69 31 1 0 17 83 0 23 40 10 50 70 1 29 19 16 65 55 0 45 20 23 57 25 40 30 30 61 24 15 22 35 43 , 66 10 1 24 19 46 35 27 40 50 10 45 47 8 31 56 13 52 37 11 18 75 7 31 30 20 50 52 9 39 16 27 57 44 4 i 52 14 38 48 33 30 40 30 40 42 18 20 36 44 48 20 1 32 14 57 29 34 30 50 20 33 54 13 25 44 31 42 37 : 21 16 65 19 39 20 20 60 27 12 61 12 29 59 30 4 1 66 11 35 54 41 20 40 40 28 43 29 13 37 50 33 27 ! 40 11 50 39 43 20 60 20 21 67 12 19 49 32
. Some effects of a harmful organic soil constituent . 0 66 0 34 19 0 81 56 0 44 14 0 86 18 50 20 30 86 4 10 25 31 44 75 4 21 17 41 42 21 50 50 0 54 46 0 36 64 0 69 31 1 0 17 83 0 23 40 10 50 70 1 29 19 16 65 55 0 45 20 23 57 25 40 30 30 61 24 15 22 35 43 , 66 10 1 24 19 46 35 27 40 50 10 45 47 8 31 56 13 52 37 11 18 75 7 31 30 20 50 52 9 39 16 27 57 44 4 i 52 14 38 48 33 30 40 30 40 42 18 20 36 44 48 20 1 32 14 57 29 34 30 50 20 33 54 13 25 44 31 42 37 : 21 16 65 19 39 20 20 60 27 12 61 12 29 59 30 4 1 66 11 35 54 41 20 40 40 28 43 29 13 37 50 33 27 ! 40 11 50 39 43 20 60 20 21 67 12 19 49 32 32 45 j 23 8 76 16 44 20 70 10 19 ! 73 8 23 58 19 30 58 1 12 6 86 8 47 10 10 80 13 i 5 j 82 1 16 77 13 1 1 86 6 23 71 49 10 30 60 10 19 71 10 37 53 12 10 78 9 43 • 48 51. 10 50 40 8 61 31 11 41 48 17 35 48 0 61 34 52 10 60 30 7 78 15 13 44 43 14 49 1 37 6 71 23 54 10 80 10 6 86 8 17 68 15 15 74 i 11 5 86 9 56 0 0 100 0 0 100 0 0 100 0 0 1 100 0 0 100 61 0 50 50 0 53 47 0 43 57 0 41 59 0 68 32 66 0 100 0 0 100 0 0 100 i 0 0 100 1 0 0 100 0 P,0 KaO Fig. 12.—Showing the average concentration in parts per million of P2O5 +NH3 +K2O in the solution aftergrowth of wheat plants, without dihydroxystearic acid—Experiment II. Bui. 70, Bureau of Soils, U. 5. Dept. of Agriculture. Plate IV. s: ? c :^5: ^< i:i2 f:, a,2 3
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