9i8 
Journal of Agricultural Research 
Vol. XXIV, No. II 
Tabi.^ VII .—Type of growth, nitrogen fixed, and reaction of soils of Series II 
Soil 
No. 
Dupli¬ 
cate 
soil. 
Type of film. 
Microscopic picture. 
Nitro¬ 
gen 
fixed. 
Azoto¬ 
bacter. 
Ph 
colori¬ 
metric. 
Ph 
electro¬ 
metric. 
Mgm. 
10. 7 
+ 
6. 7 
6. 71 
6.3 
5-0 
3 - 78 
5-4 
—- 
5-4 
5 - 27 
10. 5 
+ 
7 - I 
II. 8 
+ 
7.2 
7. 08 
6 . I 
— 
5 - 7 
5-25 
10. 2 
-1- 
7-4 
7. 70 
8.5 
+ 
5-6 
5- 48 
9 - 5 
-f 
6. 6 
6. 47 
7-9 
-f 
7.4 
7. 61 
9. I 
-f 
6.6 
6-39 
+ 
5.8 
5-48 
8.9 
4 - 
5-6 
5 - 8S 
8.9 
+ 
5.8 
S- 59 
8.6 
+ 
5-4 
5 - 51 
10. 0 
+ 
6. 0 
5-90 
10.3 
+ 
6.6 
6. 56 
8.9 
+ 
7 - 5 
7. 28 
9.8 
4 - 
7 * I 
7. 00 
6. 0 
4 " 
5.8 
5. 68 
7 '. 6 
— 
5 - 7 
5 - 24 
8.6 
4- 
5.8 
5 - 51 
8.8 
4 
5 - 9 
5 - 64 
9.0 
4 
6.9 
7. 06 
4. 7 
— 
5 - 5 
5 - 15 
8. 0 
— 
5 - 5 
5. 19 
6.6 
— 
5 - 5 
5. 10 
5 - I 
— 
5.9 
5. 78 
10. 8 
+ 
7.6 
7 * 30 
7-3 
+ 
7-4 
7 * 52 
7 - 7 
— 
5.8 
5 - 47 
9-3 
5*9 
5 - 54 
13* 5 
+ 
7-3 
7 - 45 
7. 2 
— 
5-4 
4. 88 
II. 7 
+ 
7. 2 
7. 20 
10 - 5 
4- 
5-4 
4. 88 
4-3 
— 
5.8 
5. 58 
3-0 
— 
5-4 
5 - 05 
8.9 
+ 
6. 2 
5 - 90 
7-3 
4 - 
7.0 
7 - 30 
7-9 
+ 
7.2 
7.48 
9 - 7 
4- 
7.8 
7 - 59 
7.0 
4 - 
8 . I 
8. 77 
8.8 
4 - 
7-3 
7. 72 
7 * 5 
+ 
7. 2 
7 - 94 
8 . I 
4 - 
6.9 
7. 16 
8.8 
+ 
6.8 
7. 06 
10.3 
4 - 
7*3 
7.69 
8.3 
4 
7 - I 
7. 62 
6. 4 
+ 
7-3 
7- 6$ 
12. 3 
+ 
6. 0 
6. 25 
9.4 
4- 
6. 0 
5 - 96 
101. 
102 . 
103 - 
104. 
loS- 
106. 
107. 
108. 
109. 
no. 
111. 
112. 
113- 
114. 
115- 
116. 
117. 
118. 
119. 
120. 
121. 
122. 
123. 
124. 
125- 
126. 
127. 
128. 
129. 
130. 
131. 
132. 
1 
2 
3 
4 
5 
6 
31 
32 
33 
34 
35 
36 
37 
38 
39 
40 
61 
66 
64 
65 
63 
49 
50 
51 
52 
53 
54 
15 
77 
16 
17 
18 
82 
79 
80 
83 
133 
134 
135 
136 
137 
138 
139 
140 
141 
142 
143 
144 
145 
146 
147 
148 
149 
150 
151 
152 
a One sample. 
Typical Azotobacter. 
None. 
.do. 
Typical Azotobacter. 
.do. 
None. 
Typical Azotobacter. 
None. 
Typical Azotobacter. 
....do . 
.do. 
Nontypical Azoto¬ 
bacter. 
Typical Azotobacter. 
Nontypical Azoto¬ 
bacter, 
Typical Azotobacter. 
....do. 
.do. 
....do . 
_do. 
Nontypical Azoto¬ 
bacter. 
None. 
Nontypical Azoto- 
bacter.« 
Typical Azotobacter. 
....do . 
None. 
....do . 
_do. 
... .do. 
Typical Azotobacter. 
.do. 
None. 
Nontypical Azoto¬ 
bacter. 
Typical Azotobacter. 
None. 
Typical Azotobacter. 
None.. 
....do . 
_do. 
... .do. 
Typical Azotobacter. 
_do. 
_do. 
....do. 
....do. 
....do. 
_do. 
_do. 
_do. 
.do. 
... .do. 
... .do. 
_do. 
Typical Azotobacter, 
No Azotobacter. 
_do. 
Typical Azotobacter. 
....do . 
No Azotobacter. 
Typical Azotobacter. 
Azotobacter present. 
Typical Azotobacter. 
_do. 
_do. 
Azotobacter present. 
Typical Azotobacter. 
_do. 
_do. 
....do. 
....do. 
....do . 
_do. 
Azotobacter present 
No Azotobacter. 
Azotobacter present. 
Typical Azotobacter. 
_do. 
No Azotobacter. 
_do.. 
....do. 
....do . 
Typical Azotobacter. 
_do.... 
No Azotobacter. 
Typical Azotobacter. 
....do . 
No Azotobacter. 
Typical Azotobacter. 
Azotobacter present. 
No Azotobacter. 
Azotobacter (?). 
....do(?) . 
Typical Azotobacter. 
_do. 
_do. 
_do. 
_do. 
_do. 
_do. 
_do. 
... .do. 
_do. 
_do. 
... .do. 
... .do. 
