29 



Tabie XIIIj Variation* in Wat©r*«olubld Nitrogen. 



Date 



461 CultiT«t«« 462 Millet 



462 N End of 462 

 whieh was fertiH«efl, 

 PP m 



21.8 

 48.0 

 180.0 

 320.0 

 218.2 

 282.5 



There can be little doubt that the Inereased size and 

 vigor of the plants in plat 262 N was due to the increase 

 of NO3 in the soil. 



laeidentaily, it may be noted that the NO in eheelt 

 plat 481 probably ran too low for good plant growth on 

 Aug, 21 and 29. 



