848 



plantings. The total yield and the yield of stalks was greatest from the thickest 

 planting. Corresponding results have lieen secured in each of the three preceding 

 years. » * * 



A second experiment was made to compare the eftVct of planting in hills at differ- 

 ent distances and with different nnmhers of kernels in the hills. 



The tract used for this experiment had heen in corn in l^iK) and was fall-plowed. 

 There were 36 plats, each 9 hills square, so planted tliat corn grew on every sitle of 

 each plat. May 14 the corn, which was Learning and Burr White, medium-maturing 

 varieties, and Pearly Butler, an early-maturing varit-ty, was dropj)eil by hand 

 and covered with a hoe. June 1 to 27 the corn was rultivatcil three times with a 

 shallow-going (.iiltivator and the remaining weeds removed with a hoe. 



Octoher 26 to 29 the corn was husked anrl the numlier of barren stalks, the total 

 number of stalks, the numlier of ears, and the weight of ears were asccrtaiiu'd for 

 eacli plat. The distance between hills, the numlur of kernels jier hill, the ratio of 

 stalks grown to kernels planted, the per cent of barren stalks, the number ])er acre 

 of kernels planted, stalks grown, and ears harvi-sted, the weight of 100 ears, and 

 the yield per acre in bushel.s (70 pounds per bushel) for each plat of each variety are 

 given in the table. 



In general as the rate of thickness in planting increases the ratio of stalks grown 

 to ktruols planted an<l weight of 100 ears decrease, while the per ceut of barren 

 stalks iucrea,ses. The same is more noticeable in the table giving the average of 4 

 plats for each of the six rates of planting. In this table also it will be seen tliat, 

 excejiting the thickest planting, the yield jier acre increases with the increase iu 

 rate of planting. 



Experiment No. 6. — Corn, phmtinff in hHIs or drllis {\). <m), — On 'one 

 plat Burr AVliitc corn was ]»lant»Ml in <lrills and on anothor in liill.s 

 under tlu' .same conditions. Tlie land was cultixatcd (»no way. Thg 

 yields were exactly the same on the 2 plats. In 1S<>(» tline was a 

 considerably larger yield from planting in hills. 



E.rperimenf Xo. 7. — Corn, depth of' ploirinn (p. 65). 



May 16, 1891, 3 equal and adjacent plats were plowed a.s nearly a« possible at 

 depths of 2. 5, and 10 inches, and planted to corn. 0<to)ier 23. when harvested, 

 they yielded respectively .54, .57.5, ami 66 bushels per acre. The diff'erenco in yield 

 was so slight that it can not bo said with confidence that the diflVrenco in the depth 

 of plowing caused it. 



In 1890 the yields from .5 adjacent i)l;its, with seed bed stirred to different depths, 

 were as follows: Not ]>lowed (disked shallow) .">6.4, jilowed 2 inches 59.9, plowed 4 

 inches 69.4, plowed 6 inches 69.3. plowed 8 inches 71.7 bushels per acre. None of 

 these plats had any cultivation after planting, except removing the weeds by scrap- 

 ing the surface with a sharp hoe. 



Experiment No. 9. — Corn, (lejtth of cidtirtition (p. (K5). — Deep and shal- 

 low cultivation were compared with each other and with no cultiva- 

 tion. The rt'sults are stated in a tahle. The following: is a summary 

 of experimeuts iu this line at the station daring i years. 



Yields of corn on jilalx diffemitlt/ cnltivaled, ISSS-fH. 



Kind of cnltivation. 



Shallow, iinlinary 



Deep, ordinary 



None, weeds scraped from surface 



BtJ.shels per nrrc 



188«. 



93.8 

 84.9 

 90.0 



1889. 1890. 1891. Average. 



84.6 

 74.2 

 77.1 



66.8 

 60.8 

 69.1 



ra.4 

 55.3 



7.5.9 

 70.8 



7:;. 9 



