30 HATCH EXPERIMENT STATION. [Jan. 



Computed to the acre and the grain in bushels, the aver- 

 ages are: "special," stover, 4,100 pounds; grain, 58.3 

 bushels; fertilizer richer in potash, stover, 4,598 pounds; 

 grain, 56.1 bushels. Here, as in the comparison between 

 "manure" and "manure and potash," there is rather more 

 stover and a little less grain where the greater amount of 

 potash is used. The " special " produces this year, per acre, 

 2.2 bushels more grain and 498 pounds less stover than the 

 combination with more potash. The increase in stover due 

 to the greater amount of potash is worth about $1.10 more 

 than the increase in grain due to the " special ;" hence, as 

 the fertilizer richer in potash costs about $2.52 less per acre 

 than the special, there is a net advantage amounting to $3.62 

 per acre in favor of the former. 



It is believed that by the introduction of plants of the clover 

 family {nitrogen traps), which from experiments here and 

 in many other places we are justified in concluding would 

 grow more luxuriantly where the larger amount of potash 

 has been used than where ' ' special " has been applied, the 

 advantage of the larger potash application could be much 

 increased. An effort to demonstrate this fact has been made 

 in each of the seasons of 1893 and 1894 by sowing crimson 

 clover on one-half of this acre ; but, owing to the winter- 

 killing of this clover both years, the effect, though favorable, 

 is small. Per acre the yields have been : where crimson 

 clover was sown, stover, 4,512 pounds; grain, 58.6 bushels; 

 without clover, stover, 4,186 pounds; grain, 55.9 bushels. 

 The clover has been sown in the standing corn in July, and 

 turned under just before planting the corn the following 

 spring. 



Hill v. Drill Culture for Corn. 



On plats 1 and 2 in both the corn experiments just de- 

 scribed the corn was planted in drills ; on plats 3 and 4, in 

 hills. AVe have left equal numbers of plants to a plot in 

 both systems. All rows were three and one-half feet apart ; 

 hills with three plants each, three feet apart ; plants in the 

 drill one foqt apart. In both experiments the hill system 

 has produced rather more grain and less stover than the 

 drill. The average figures per acre are as follows : manure 



