442 



Bulletin 267. 



To test the relative efficiency of two different carriers of nitrogen, 

 dried blood applied alone and in combination with nitrate of soda 

 was introduced into the experiment. The data obtained, arranged 

 in the same form as that found in Table XI, is here shown. 



TABLE XIII 



Treatment 



120 lbs. Dried blood. 



60 lbs. Dried blood 



60 lbs. Nitrate of soda.. . 



60 lbs. Dried blood 



60 lbs. Nitrate of soda*.. 



120 lbs. Nitrate of soda.. . 



Aver- 

 age 

 per cent 



total 

 weight 

 in tops 



24.4 

 243 



239 

 24.1 



* Applied after thinning. 



The greatest variation in in:reased yield occurred in the second year 

 of the experiment. The average net gain seems to indicate that of 

 the two fertilizer ingredients when used alone, nitrate of soda is the 

 more effective. 



For the benefit of readers who wish to make use of all the data con- 

 nected with the fertilizer experiment the following table is included: 



TABLE XIV 

 Showing Averages for the Two Years of the Fertilizer Experiment 



Plat 

 No. 



1442 

 1443 



1444 



1445 

 1446 



1447 

 1448 



1449 



Treatment 



Nothing 



120 lbs. Dried blood. 



60 lbs. Dried blood. . . 

 60 lbs. Nitrate of soda . 



Nothing 



60 lbs. Dried blood .... 

 60 lbs. Nitrate of soda*. 



1 20 lbs. Nitrate of soda . 



Nothing 



240 lbs. Acid phosphate . 



Yield 



per 



acre, 



tons 



10 .02 

 11.68 

 12.02 



11,14 

 1342 



14 . 50 



J2 . 70 

 15-36 



* Applied after thinning. 



