38 



EXPERIMENTAL FARMS 



5-6 EDWARD VII., A. 1906 

 EXPERIMENTS WITH FERTILIZERS ON PLOTS OF INDIAN CORN. 



Fertilizers applied each j^ear, from 1888 to 

 1898 or 1899. No fertilizers used from 

 that time to 1905. 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. In 1905 

 fertilizers again applied as in 1898. Clover 

 discontinued. 



8 



AVEHAGK YrKLD 

 FOE 



Thietbkn Ybars. 



I ^ 

 I (B 



u 



Per acre. 



9 



10 



11 



Mineral phosphate, untrfeated, finely ground, 

 800 lbs. per acre, used each year from 

 1888 to 1897 inclusive. In 1893 and 1899 

 a similar weight of the Thomas' phos- 

 phate was used. No fertilizer used from 

 1900 to 1905. In 1905 fertilizer again 

 used as in 1899 



Mineral 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 wa-s used in place of the mineral 

 phosphate. No fertilizers used from 1900 

 to 1905. In 1905 fertilizers again used as 

 in 1899 



Barn-yard manure, partly rotted and ac- 

 tively fermenting, 6 tons per acre ; 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 used from 1899 to 1905. In 1905 

 fertilizers again used as in 1898 



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' 

 phosphate was used in place of the 

 mineral phosphate. No fertilizers used 

 from 1900 to 1905. In 1905 fertilizers 

 again used as in 1899 



Mineral phosphate.untreated, finely ground, 

 500 lbs., vTOod ashes, unleached, 1,500 lbs., 

 per acre, used each year from 1888 to 1897 

 inclusive. In 1S9S and 1899 500 lbs. of 

 the Thomas' phosphate wr..a used in 

 pLice of the mineral i)!iosphate. No fer- 

 tilizers used from 1900 to 1905. In 1905 

 fertilizers again used as in 1899 



Mineral superphosphate, No. 1, 500 lbs. per 

 acre, used each year from 1888 to 1899 in- 

 clusive. No fertilizer used from 1900 to 

 1905. In 1905 fertilizer again used as in 



1899 ••-•■•,;••• 



Mineral superphosphate, No. 1, 3d0 lbs. ;, 

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

 year from 1888 to 1899 inclusive. No 

 fertilizers used from 1900 to 1905. In 



1905 fertilizers again used as in 1899 



Mineral superphosphate. No. 1, 350 lbs. ; 

 nitrate of soda, 200 lbs. ; wood ashes, 

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

 year from 1888 to 1899 inclusive. No 

 fertilizers used from 1900 to 1905. In 

 1905 fertilizers again used as in 1899 



Tons. lbs. 



16 



15 



12 



11 



16 



468 



11 1311 



. to 



1. « 



_ ^ _2 *.-' M 



Per acre 



Tons.lbs 



5 924 



9 678 



473 



16th Season, 1905. 



"O o . 



5^ LS if t" 



.•^ bCTJ 



r,o I o 



;^ c boo; 



Per acre. 



Tons. lbs. 



10 1300 



14 1870 



Per 



Tons, lbs 



AvEBAGE Yield 



FOR 



FouRTEEK Years. 



I S3 



Per acre. 



Tons. lbs. 



Ton8.1ba 



10 1210 



12 1570 



12 288 15 



449 



564 



75^ 



250 



11 660 14 



840 



13 1060 



532 



9 1292 



8 1651 



10 1234 



12 1007 



14 



8 770 



11 1721 



13 420 16 



12 1320 



1810 



13 1410 



13 1950 



334 



IN $ 



. bo 

 O M-i 



Per acre 



5 1567 



9 1014 



12 421 



15 



34811 826 



16 



740 



13 240 



10 1250 



10 1660 



13 970 



12 



11 



892 



1048 



13 1116 



16 



545 



9 1726 



8 1876 



10 12G1 



12 1130 



