55 



mav be used to advantage on either sandy on heavy 

 land. 



It is also slated by Harris that super-phosphate 

 will greatly stimulate the growth of mustard. 



If the seed was cheaper, I would frequently use it. 

 and sow two or three crops for wheat. 



I had fifteen tons per acre, of white mustard plowed 

 in enrly in July, and had the lot seeded down in 

 buckwheat, and when it was in blossom, had it 

 turned in for wheat. The crop was nearly equal, to 

 another field which produced 24 bushels per acre, 

 and which had been dressed with good stable manure 



and super-phosphate of lime. /^ | i> , 



* '* A - 



CHAPTER XIII. X l v ' It > I T V < 



TURNIPS. { 



i 



One ton of turnips contains 4 pounds of nitrogen, 

 1 pounds of phosphoric acid, GJ pounds of pot ish. 

 and 1818 pounds of water. One ton of turnip leaves 

 contains 7 pounds of nitrogen. 20 tons per acre are 

 considered a good crop The tops weigh about eight 

 tons. The two together furnish 136 pounds of 

 nitrogen. 



It will require nearly seven tons of Hungarian 

 grass, or/0 tons of #reen clover, or 13 J tons of barn- 

 yard manure to yield as much nitrogen as this crop 

 of turnips. 



Yet we cannot obtain as much benefit irorn these 

 manures, as the English farmer gets from his turnips. 

 The reason may be, we do not bestow as much labor 

 and material on our green crops, as he does, to make 

 them available. 



