Tillage Experiments with Potatoes. 201 



Result : The first plat yielded at the rate of 95 bushels per acre and 

 the second 120 bushels, a difference of 25 bushels per acre in favor of 

 the deep planting, longer continued and level tillage. 



Deep vs. shallovj planting. — 



C. L. Frost, Schuyler Co. Soil, a clay loam with hard pan subsoil. 

 Both plats were treated alike except that while the field was furrowed 

 three to four inches deep, the special area was furrowed seven inches 

 deep. Both were covered with a plow and received frequent level 

 tillage. 



Result : The shallow planting yielded 140 bushels per acre and the 

 deep planting 171 bushels, a difference of 31 bushels in favor of the 

 deep planting. 



Hilling vs. level culture. — 



Wni. C. Buell, Ontario Co. Soil, varying from a gravelly to a 

 clay loam — a timothy sod, no manure. Plowed in November and 

 harrowed May 2d, 12tli and 25th. Planted May 27th, furrowed 

 four to five inches deep, seed dropped one piece in a place 28 inches 

 apart, and covered with a potato coverer. Harrowed 10 days after 

 planting. Part was cultivated four times, and shovel plowed ; 

 another part was cultivated six times and not shovel plowed. 



Result : The first yielded 91 1-2 bushels per acre, and the other 102 1-2 

 bushels, a difference of 1 1 bushels per acre in favor of continuing level 

 tillage. 



Another plat was treated similarly to No. 2 except that the seed 

 was dropped 14 instead of 28 inches apart and covered by turning a 

 furrow from either side over the seed so that all the soil between the 

 rows was thoroughly stirred. It also received one more cultivation. 



Yield, 126 1-2 bushels per acre as compared with 102 1-2 bushels, a 

 difference of 25 bushels per acre in favor of the closer planting and 

 more thorough working of the land. 



Hilling vs. level tillage again. — 



Clark A. Storms, Orleans Co. Soil, loam with a clay subsoil — a 

 clover sod dressed with stable manure plowed under. Plowed May 

 15th aT)out eight inches deep. The field was well fitted, well tilled 

 and sprayed four times with Bordeaux mixture. One part was 

 shovel plowed at the fifth and last working, the other was tilled level. 



Result: Hilled, 61 bushels per acre, level tillage, 78 bushels — a dif- 

 ference of 17 bushels in favor of level tillage. 



