31 



NUMBER OV EARS. 



The nuniber of ears per acre varied from 18,932 in plat 1, one of the thicket-planted 

 ])lats, to 5,G64 in plat 12, one of the thinnest-planted plats ; ahont three and one-third 

 times as many in one case as in the other. This wonld materially aflect the cost of 

 harvesting, and, unless there is a considerable increase in yield, the increase in ears 

 would be undesirable. Taking an average of the first four plantings, the number of 

 ears produced per acre, with one kernel to a hill, was l'.i,!'i'2'J; with two, 12,504; with 

 three, 12,21(5; with four, 12,649. * * * It has been shown that where two and 

 three kernels were planted to a hill the ears were a little larger than where but one 

 was planted. 



YIELD. 



The average yield of corn-fodder, approximately, was, for the first planting, 9 tons 

 per acre : the second, 8; the third, 7| ; the fourth, 7^ ; the fifth, 6f, and the sixth, .5*. 

 TLe average yield of stover, approxinuitely, was (5, 4|, 4f, 4^, 4^, and 4 tons per acre, 

 respectively. The average yield of shelled corn, approximately, was 89, 95, 87, 83, 

 72, and 00 bushels per acre, respectively. Of this quantity 32,64,71, 74, 61, and 55 

 bushels, respectively, were obtained from the good ears, and 57, 31, 16, 13, 11, and 5 

 busiiels from the nubbins. 



Taking the average of the first four plantings, where one kernel was planted to a 

 hill, the yield was 92.8 bushels per acre; two kernels, 93.4; three kernels, 87.4; four 

 kernels, 87.8, and of shelled corn from good ears there were 60.1, 66, 57.6, and 60.2 

 bushels per acre, respectively. There was a little more corn, and considerable more 

 corn from good ears, where two kernels were planted to a hill. 



Experiment No. G. — Corn^ planting in hills or drills (pp. 106, 107). — 

 ^' TLis experiment was made to supplemeui Experiment No. 5. lu that 

 experiment the cultivation was tbe same whether there was one kernel 

 every foot or three kernels every 3 feet. In ordinary practice, however, 

 if corn is planted in hills, it is cultivated both ways; while, if planted 

 in drills, it can be cultivated bntoneway. An acre of laud was divided 

 into two plats, each 8 by 10 rods. One plat was planted in drills with 

 a corn -planter, one to three kernels of Burr's White Dent corn every 

 10 inches; the other was planted in hills 3 feet 8 inches apart, two to 

 fonr kernels in a hill. * * * Although the test lacks the thorough- 

 ness desirable, the result is similar to results obtained in Experiment 

 No. 5, viz, no marked differences from different methods of planting. 



Experiments 8, 9, and 10. — Frequency and deptJt of cultivation and root 

 pruniny of corn ( pp. 10/-113). — These are practically one experiment 

 with three sets of conditions. In No. 8, in which the effects of fre- 

 quency of cultivation are tested, the comparison is between cultivating 

 four times (ordiimry cultivation), cultivating six times ("ordinary" and 

 twice after tasseling in addition), and cultivating twelve tiaies. In No. 

 9 the effects of deep and shallow cultivation are compared. In No. 10 

 the effects of root pruning are observed. The plats were treated by (1) 

 scraping on the surface with a sharp hoe so as to remove weeds, but 

 not stir the soil to any depth ; (2) hoeing in the ordinary waj^, the ground 

 being stirred 1 or 2 inches deep; (3) shallow cultivation, about 1 inch, 

 with a cultivator; (4) deep cultivation, at least 3 inches, with a culti- 

 vator. 



To test the effect of frequency of cultivation, some of the deep cul- 



