... >200 II 0,80 0, 75 0,70 0, 65 0, 85 0,90 0,30 0,40 0 ,50 < 150 0, 25 0, 25 0,20 0, 45 0,40 0, 35 0,30 0,60 0 ,55 0 ,50 0, 45 0,40 0, 25 Cát thô, đất đá xếp 0, 35 0 ,55 >200 đất có cỏ mọc 0, 45 150 - 200 Đất cát ... 13,0 17 ,5 22 ,5 32,0 42,0 52 ,0 63,0 75, 0 86,0 93,0 116,0 158 ,0 186,0 6,0 9,0 12,0 15, 0 18 ,5 26,0 34,2 44,0 53 ,0 63,0 74,0 83,0 1 05, 0 142,0 155 ,0 4, 7,0 10,0 12,0 15, 0 22,0 29,0 37,0 45, 0 53 ,0 62,0 ... 1 1 < 150 III Đất sét, đất sét nặng VI 0,80 0,80 0,80 0,90 0,90 090 0,90 0, 95 0, 95 0, 95 0,90 0,90 0, 75 0, 65 0, 65 0,80 070 0,70 0,80 0, 75 0, 75 0,80 đất rừng màu gụ < 150 0, 85 150 - 200 0, 85 >200...