( 142 ) 
NITROGEN (Tab. N®.9 Am. and N°, 5 Am.) 
~I 
B: oF 16° 
99° 45 
199° .50 
P 0° 16° | 45°.6 
1 0 
100 | + 0.2 
200 | + 0,4 
300 | + 0.8 
400 | + 1.1 
500 | +4 1.5 
600 | 4 1.7 
700 | + 1.8 
800 | + 2.2 | + 0.8 
900 | + 2.3 447 Ae 
1000 | + 2.3] 44.5 | + 0.3 
BOD et 2.5 | A17 ED 
1200.| + 2.6 | 41.8 | 41.2 
BOONE 27 17 AD 
1400 | + 2.8 4.5 | 44.3 
1500 | 428 | 44.4 | 41.0 
me AG t= Aa 
1700 | + 2.5] 446 | + 1.0 
41800} 4 2.2 | 44.3 | +0.7 
4900 | + 2.2 | 41.4 | + 0.8 
2000 | + 2A | 44.5 | + 0.7 
2100 | + ZA | 41.4 | + 0.6 
2200 | + 2A | + 4.4] +4 0.5 
2300 [2.2 48403 
2100 | + 2.3] 44.5) 40.5 
2500 | + 2.7 1461408 
| 2600 | + 3.0] + 41.6 | + 0.6 
| 2700 | 4 313 | 4.8 | + 0.4 
| 28001 4-34-20) os 
2900 | + 3.6| + 2.2] + 0.6 
3000 | ++ 3.6) -.. 9.9 | 4 0.7 
ee ee ee ee 
