48 



When we compare it with barnyard manure, its 

 great value MS a green dressing becomes apparent. I 

 have seen 1 5 tons per acre, growing on the 8th of 

 May, and this was ascertained by careful measure- 

 ment. Then on a field of 20 acres, you could have 

 300 tons of manure, at very little expense, all evenly 

 spread on the ground and ready to plow in. 



The most careful analysis is worth nothing, if 

 green rye is not equal, ton for ton, to stable manure, 

 with one small exception. The latter has half a 

 pound of phosphoric acid per ton more thau the 

 former. 



Now what will it cost you to cover a field of 20 

 acres, with 300 tons of manure ? Can you buy it, 

 haul it, and spread it, for less than $450. 



The rye will cost you, for the seed $i,00 per bushel, 

 and two bushels per acre, $40. 



That is, it will cost more than twelve times as much 

 to improve with barnyard manure at $1,50 per ton, 

 than to use green rye. 



The tillage always pays for itself. 



And remember this, the rye grows at a time when 

 you cannot use the ground for any other crop but 

 wheat. 



Mr. Root of Illinois, regards this fact of the very 

 highest importance, in using this grain as a green 

 manure. 



Besides this great merit, it protects the field from 

 washing during the winter. 



It absorbs the soluble minerals, and the ammonia 

 and nitric acid, that might, under other conditions be 

 lost. 



