28 



THK POTATO 



Maryland Station,' plowing under a crop of crimson 

 clover increased the yield 34.4 bushels per acre, or 50 

 per cent., and the average gain for two years was 27 

 bushels per acre, or 45 per cent.; the Storrs^ (Connect- 

 icut) Station reports that clover sown in corn at the 

 last cultivation had a high value when used to plow 

 under as manure for potatoes, even though it only 

 attained a hight of three or four inches ; in Germany' 

 the sweet clover {Meli lotus alba) is found to be a valu- 

 able green manure; while in another German experi- 

 ment,* where clover was seeded in rye which was 

 grown for grain, the clover being plowed under the 

 following spring, it was noted that the yield of rye 

 was dimished, but the yield of the succeeding crop of 

 potatoes was increased. The yields of rye and potatoes 



were: 



TABLE II 



i: 



y -;<-• 



Rye alone 



Kye alone <..... 



Rye and late sown red cloVer 

 Rye and early sown red clover 



Yield per acre of 

 potatoes, 1S93 



As green manuring for poor sandy land on Long 

 Island, N. Y., Professor Stone, of Cornell University, 

 suggested sowing a bushel of cow-peas and ten pounds 

 of crimson clover per acre, in July, with some fertil- 



» Md. Bui. 38, p. 58. 

 * E. S. R., v., p. 701. 



' Conn. (Storrs) Report, 1900, p. 65. 

 * E. S. R., VI.. p. V)2. 



