THE SOUTHERN PLANTER. 



125 



On the second acre, I applied 200 lbs. gua- 

 no in the drill, in the following way : The land 

 having been previously fallowed with a double 

 plough, furrows were made at the time of 

 planting by running twice in a place with a 

 single plough, in which the guano was drilled; 

 a harrow was tken run over it, which covered 

 it two or three inches deep ; the corn was then 

 dropped and covered with harrows. 



On the third acre, I used no guano. 



On the fourth, I applied 100 lbs. of guano 

 in the drill, in the same way as on the second 

 acre ; and at the second ploughing I applied 

 100 lbs. in furrows made by a single plough 

 on each side of the corn, and covered with 

 single ploughs. The results were as follows : 



1st acre, 200 lbs. broadcast, produced 

 4 barrels, 4 bushels, and 3 pecks, at 

 S3 50, ' #17 44 



2d acre, 200 lbs. in the drill, produced 



3 bbls., 4 bushels, and 3 pecks, at 



S3 50, • 13 05 



3d acre, nothing used, produced 1 bbl., 



4 bushels, and 2 pecks, at $3 50, 6 75 

 4th acre, 100 lbs. in drill and 100 lbs. at 



side, produced 5 bbls., 2 bushels, and • 



1 peck, at $Z 50, • 19 16 



In the above there is nothing said about 

 short corn, as it was put at half price, and 

 carried out in the estimate of each acre. 



By adding to the product of the unimprov- 

 ed acre, which was $6 75, the* cost of guano 

 and. interest thereon for one year, (say $5 30) 

 and deducting the amount, $ 12 05, from the 

 product of the.first acre, the remainder ($5 39) 

 will show the profit by the use of guano, ap- 

 plied broadcast. In the same way, $1 90 is 

 the profit by its use in the drill, and $7 1 1 is 

 the profit by its use as applied on the fourth 

 acre. 



But in order to ascertain more accurately 

 the* profits by the use of guano, we should 

 charge for cultivation, which I will put down 

 down at $5 per acre, which is moderate, sup- 

 posing the laborer to find himself and horse ; 

 also $5 30 per acre for guano when used. By 

 this estimate, it will be found that the nett 

 profit on the unimproved acre is $1 75; on 

 the 1st acre, $7 14; on 2nd, S3 65; and on 

 the 4th, $8 86. The result of the above ex- 

 periments is decidedly in favor of using half 

 the guano in the drill at the time of planting, 

 and half at the second ploughing. I will 

 state, in connection with these experiments, 

 that the corn on the acre on which the guano 

 was applied broadcast, looked decidedly better 

 than any other until it was about three feet 

 high, about which time that on the acre on 

 which the 200 lbs. guano was used in the drill, 

 overtook it. This acre, during the summer, 



and even after the tops were cut, I thought 

 would have produced at least a barrel more 

 than any other, but to my surprise I found the 

 4th acre produced the most. This is an ex- 

 emplification of the fallacy of judging as to 

 the results of experiments by the eye. 

 Respectfully submitted. 



¥m. Irby. 



Comparative Effects of 300, 200, and 100 

 lbs. of Guano on an Acre of Corn. 



As one of a committee cf three appointed 

 to make experiments with guano upon corn, I 

 have performed, very satisfactorily to myself, 

 the duty assigned me by the club, and hereby 

 report the results to which I have come. 



The object of the experiments was, to test 

 the comparative effects of 300 lbs , 200 lbs., 

 and 100 lbs. of guano, on an acre of corn. 



Being unfavorably situated, however, for 

 executing my task, I have conducted the ex- 

 periments only in a pro rata form ; that is, a 

 half acre of ground was selected and divided 

 into four parts, or lots, each containing" five 

 rows of corn. 



As late as about the 15th of May last, this 

 plot of ground, which was poor and had "been 

 seeded to oats with guano the year before, was 

 thrown into 5 feet beds with the single dagon, 

 and planted with corn at 2 feet distance. Be- 

 fore fallowing, three of the lots had been 

 dressed respectively with 38 lbs., 25 lbs , and 

 and 13 lbs of guano each, while the fourth lot 

 was left undressed, for comparison. 



Besides being planted late, the crop was 

 badly worked. It suffered, also, from the 

 depredations of birds, especially the lot which 

 was undressed — being an outside one, and re- 

 motest from the houses. 



On the 30th of November, the corn was 

 gathered and measured, as follows, (at the rate 

 per acre :) 



Lbs. guano. Bbls. Rush. 



1st acre, 300 2 4, exclusive of nubbins. 



2d acre, . 200 2 2, " " 

 3d acre, 100 2 



4th acre,. - 1 - 4, " c: 



Estimating corn to be worth $3 50 per 

 barrel, and putting guano at $50 per ton, we 

 arrive at the following results m gam and 

 loss. Deducting in each case four bushels as 

 the unaided product of the land. 



Bbls. Value. Cost of guano. Gain. Loss. 

 1st acre, 2 $7 $7 50 50 cla 



2d acre, 1 3-5 5 60 5 00 60 eta. 

 3d acre, 1 1-5 4 20 2 50 $1 70 



On giving credit to the guano only for the 

 increased crop produced by it, and aflowinnr I 



