70 



The fwo lots of fertilizers coll(M't(^(l as nhnvo dnrinjr 

 <li<' Inst L\^ (lays of ilio cxjH'riincnt, wore carefully saiii- 

 I>le(l at the eiul of the experiment and i)r()inptly ana- 

 lyzed ; and file following: table gives the results calcu- 

 lated hy us from the analyses made by the chemical de- 

 j)ar(ment of the Station: 



Nitroijeiif phoi<phoric acid, and potash in coic manure, lUOl . 



Camposttioii* 



Nitrogen per cent 



Phosphoric acid, per cent 



Potash, per cent 



Moisture, .percent 



Pounds in 1 ton of manure. 



Nitrogen, lbs 



Phosphoric acid, lbs 



Potash, lbs 



From cow manure. 



Cotton seedC.S meal 



and hay 

 rntion. 



'and hulls 

 ration. 



0.830 



350 



485 



66 140 



16 6 



7 

 9 7 



The matter that is most worthy of note in the table 

 above is the fact that manure made from a diet consist- 

 ing largely of cotton seed meal and hulls is 55 per cent, 

 richer in nitrogen than that made from the cotton seed 

 and hay ration; a ton of the former contains 16.6 pounds 

 of nitrogen as compared with 10.7 pounds of nitrogen in 

 the manure from the latter or farm ration. As regards 

 phosphoric acid and ])otash the two manures are on a 

 practical equality. 



♦ In 1901 the manure dropped durinc: the day when the cows were 

 confined for the entire. 24 hours was also nnalyzed, the comparison 

 being almost exactly the same as that of the manure saved during 

 the second perioi of 28 days (see table above;. There was in this 

 fresh manure made from cotton seed, etc., 68 3 per cent, moisture; 

 515 per cent, nitrogen; 30 per cent, phosphoric acid; 39 per 

 cent, potash. In the manure made from cotton seed meal the per- 

 centages were respectively. 68 37; 0.78; 325; 40. The only nota- 

 ble difference is in the nitrogen, of which the manure from the oil 

 mills ration contained 51 percent, more than was found in the cotton 

 seed ration. 



