=============================+========+========+========+=========
COWPEA PLANTS. | Dry |Nitrogen|Nitrogen|Nitrogen
-----------------+-----------+ matter,|content,|amount, |fixed by
No. | Part | cgs. |percent.| cgs. |bacteria,
| | | | | cgs.
-----------------+-----------+--------+--------+--------+---------
A1—Ten plants, | Tops | 3580 | 4.09 | 146 |
with bacteria | Roots | 620 | 1.45 | 9 |
present. | Tubercles | 190 | 5.97 | 11 |
| | ---- | | --- |
| Total | 4390 | | 166 | 125
| +--------+--------+--------+
A2—Ten plants, | Tops | 1560 | 2.42 | 38 |
without bacteria | Roots | 300 | .88 | 3 |
| | ---- | | --- |
| Total | 1860 | | 41 |
-----------------+-----------+--------+--------+--------+---------
B1—Ten plants, | Tops | 3970 | 4.31 | 171 |
with bacteria | Roots | 690 | 1.47 | 10 |
present. | Tubercles | 300 | 6.05 | 18 |
| | ---- | | --- |
| Total | 4960 | | 199 | 140
| +--------+--------+--------+
B2—Ten plants, | Tops | 2060 | 2.69 | 55 |
without bacteria | Roots | 430 | .88 | 4 |
| | ---- | | --- |
| Total | 2490 | | 59 |
-----------------+-----------+--------+--------+--------+---------
C1—Ten plants, | Tops | 3300 | 4.33 | 143 |
with bacteria | Roots | 520 | 1.53 | 8 |
present. | Tubercles | 290 | 5.76 | 17 |
| | ---- | | --- |
| Total | 4110 | | 168 | 124
| +--------+--------+--------+
C2—Ten plants, | Tops | 1730 | 2.32 | 40 |
without bacteria | Roots | 400 | .88 | 4 |
| | ---- | | --- |
| Total | 2130 | | 44 |
-----------------+-----------+--------+--------+--------+---------