10 HATCH EXPERIMENT STATION. [Jan. 



Hill V. Drill Culture of Corn. — Experiments continued 

 in diflferent fields from five to six years indicate that corn 

 planted in drills will usually produce larger crops than when 

 planted in hills. This increase is most marked, as might be 

 expected, in case of the stover, but applies to the grain as 

 well. 



Green Manuring in Continuous Com Culture. 



1. White mustard, sown in standing corn at the time 

 of the last cultivation, helps to keep down weeds, furnishes 

 useful pasturage for sheep or young stock, conserves soil 

 nitrogen, does not decrease the yield of corn the year it 

 is sown, and can be counted upon to improve the soil if 

 turned under. It also helps largelij to prevent soil washing 

 in winter. 



2. Crimson and siveet clovers have not proved to be suited 

 for green manuring crops in continuous corn culture, since 

 they are not sufficiently hardy. 



Variety Tests. 

 Potatoes. 



1. Of 60 varieties of potatoes cultivated, but 5 showed 

 themselves to be in any marked degree superior as crop pro- 

 ducers to the Early Rose and Beauty of Hebron. 



2. These, with rates of yield per acre in bushels, are as 

 follows: Carman No. 1, merchantable, 355.3; small, 28.6. 

 Fillbasket, merchantable, 336 ; small, 24.5. New Satisfac- 

 tion, merchantable, 306; small, 25.7. Early Maine, mer- 

 chantable, 305.1 ; small, 35.6. Button's Seedling, merchant- 

 able, 304.5 ; small, 19.8. 



3. The Early Rose yielded: merchantable, 292.8; small, 

 21 bushels. The Beauty of Hebron (somewhat injured by 

 proximity to other crops), merchantable, 275.9 ; small, 18,7 

 bushels. 



4. The varieties tested showed no very marked differ- 

 ences in respect to ability to resist blight. 



