28 



EXPERIMENTAL FARMS 



4-5 EDWARD VII., A. 1905 

 EXPERIMENTS WITH FERTILIZERS ON PLOTS OF INDIAN CORN— Coiianwrd. 



Fertilizers applied each year, from 1SS8 to 

 1898 or 1891), No fertilizers used since. 

 Clover sown in 1900 in place of the corn 

 and ploughed under in May, 1901, before 

 the corn was planted. In 1903 clover 

 was again sown and ploughed under in 

 May, 1904. 



AvER.\GE Yield 



FOR 



Fourteen Ye.irs. 



I i=! 



'^ ° . 



-g ^p-a 



i-«j< 



Per acre. 



SjMineral phosphate,untreated, finely ground, 

 800 lbs., nitrate of soda, 200 lbs. per acre, 

 used each year from 1888 to 1897 inclusive. 

 In 1898 and 1899, 800 lbs. of the Thomas' 

 phosphate was used in place of the mineral 

 phosphate. No fertilizers have been 



applied since then 



6 Barn-yard manure, partly rotted and ac- 

 tively fermenting, 6 tons per pxre; mineral 

 phosphate, untreated, finely ground, 500 

 lbs. per acre, composted together, intim- 

 ately mixed and allowed to heat for 

 several days before using, applied each 

 year from 1888 to 1897 inclusive. In 1898 

 500 lbs. of Thomas' phosphate was used 

 in place of the mineral phosphate. No 

 fertilizers have been applied since then . . 

 Mineral phosphate,untreated,finely ground, 

 500 lbs. ; nitrate of soda, 200 lbs. ; wood 

 ashes, unleached, 1,000 lbs. per acre, used 

 each year from 1888 to 1897 inclusive. In 

 1898 and 1899 500 lbs. of the Thomas' phos- 

 phate was used in place of the mineral 

 phosphate. No fertilizers have been ap- 

 plied since then 



8 Mineral phosphate,untreated, finely ground, 

 500 lbs., wood ashes, unleached, 1,500 lbs., 

 per acre, used each year from 1888 to 1897 

 inclusive. In 1898 and 1899 500 lbs. of the 

 Thomas' phosphate was used in place 

 of the mineral phosphate. No fertilizers 



have been applied since then 



Mineral superphosphate, No. 1, 500 lbs. per 

 acre, used each year from 1888 to 1899 in- 

 clusive. No fertilizers have been applied 



since then 



Mineral superphosphate. No. 1, 350 lbs. ; 

 nitrate of soda, 200 lbs. per acre, used each 

 year from 1888 to 1899 inclusive. No 

 fertilizers have been applied since then. . 

 Mineral superphosphate, No. 1, 350 lbs. ; 

 nitrate of soda, 200 lbs. ; wood ashes, 

 unleached, 1,500 lbs. per acre, used each 

 year from 18S8 to 1899 inckujive. No 

 fertilizers have been applied since then. . 



Unmanured from tlie beginning 



Bone, finely ground. 500 lbs. jier acre, used 

 each year from 1888 to 1899 inclusive. No 

 fertilizers have been ajiplied since then. . 



14 Bone, finely ground, 500 lbs. ; wood ashes, 

 unleached, 1,.500 lbs. ptr acre, used each 

 year from 1888 to 1899 inclusive. No 

 fertilizers have been api)lied since then. . 



15 Nitrate of soda, 200 lbs. per acre, used each 

 year from 1888 to 1899 inclusive. No 

 fertilizers have been aijplied since then. 



IG Sulphate of ammonia, 300 lbs. per acre, used 

 each year from 1888 to 1899 inclusive. No 

 fertilizers have been applied since then. . 



Tons. lbs. Tons.lbi 



11 



16 



15 



10 



11 



12 

 13 



11 



16 

 10 



13 



I c 



u 



6 "=* 

 *^ ° . 



P-i > o 



Per acre 



703 



15th Season, 1904, 



Average Yield 



FOR 



Fifteen Years. 



13 O . 



6 'A bc^ 





Qj 9 C t' 





-4M 



Per acre. 



Tons. lbs. 



bc-o 



'S S) 



01 

 p 



Ec 

 > o 



Per acre 



Tons.lbs 



Tons. lbs.|Ton lbs 



Per acre. 



I 5 



. bD 



> P 



-*^ 



Per acre 



8 1,874 15 1,82014 44011 1,311 



49311 1,861 



16 190 



499 11 355 



12 150 



483 



9 637 



15 260 16 473 12 288 



14 1,750 



9 578 



13 930,15 449 



15 360 14 460 



12 564 



11 660 



8 1,315 13 60011 350. 11 757 



13 1,10510 1,034 



526 

 1,970 



12 371 



12 1,690 



12 1,317 



12 613 

 8 1,979 



13 



16 

 12 



430 12 40 



620,15 520 

 16011 1,430 



9 784 13 880 



9 1,755 

 9 1,406 



317,10 178 



14 1,150 



9 1,292 



8 1,651 



13 1,000 10 1,234 



16 53212 1,007 

 11 116 9 342 



12 1,110 12 538 



13 580, 12 1,921 



11 50 10 530 12 1,099 



I 



12 740;il l,32o! 13 212 



9 1,206 



10 "210 



9 1,481 



10 254 



