REPORT OF THE DIRECTOR. 



35 



Experiments with Fertilizers on Half- Plots, ^ acre of Potatoes after Barley. 



o 



5 



o 



9 



10 



11 



12 

 13 

 14 



15 

 16 

 17 

 18 

 19 

 20 



21 



Fertilizers applied each Year. 



Barn-yard manure well rotted, 15 tons per acre. 



Barn-yard manure, fresh, 15 tons per acre . . 



Unmanured 



Mineral phosphate, untreated, finely ground, 

 500 lbs. per acre 



Mineral phosphate, untreated, finely ground, 

 500 lbs. ; nitrate of soda, 200 lbs. per acre . . 



Barn-yard manure partly rotted, and actively 

 fermenting, 6 tons per acre ; mineral phos- 

 phate, untreated, finely ground, 500 lbs. per 

 acre, composted together, intimately mixed 

 and allowed to heat for several days before 

 using 



Mineral phosphate, untreated, finely ground, 

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

 ashes, unleached, 1,000 lbs. per acre 



Mineral phosphate, untreated, finely ground, 

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

 per acre . 



Mineral superphosphate No. 1, 500 lbs. per acre 



Mineral superphosphate No. 1, 350 lbs. ; nitrate 

 of soda, 200 lbs. per acre 



Mineral superphosphate No. 1, 350 lbs. ; nitrate 

 of soda, 200 lbs. ; wood ashes, unleached, 

 1,500 lbs. per acre 



Unmanured 



Bone, finely ground, 500 lbs. per acre .... .... 



Bone, finely ground, 500 lbs.; wood ashes, un- 

 leached, 1,500 lbs. per acre 



Nitrate of soda, 200 lbs. per acre 



Muriate of potash, 150 lbs. per acre 



Sulphate of ammonia, 300 lbs . per acre 



Sulphate of iron, 60 lbs . per acre 



Common salt (Sodium chloride) 300 lbs. pc«": - acre 



Land plaster or gypsum (Calcium sulphate), 300 

 lbs . per acre 



Mineral superphosphate No. 2, 500 lbs, per acre 



East half of Plots. 



Yield of 



12 rows 



Thor- 



burn. 



Lbs. 



342 



375 

 160 



155 



125 



232 



175 



225 

 2501 



227 



313 



178 

 137 



230 



139 



152 



134i 



134" 



162^ 



232 

 206 



Yield of 

 12 rows 

 Beauty 

 of He- 

 bron. 



Lbs. 



325 

 352 

 190i 



197 



1691 



260J 

 26H 



239 

 290 



251 



337 

 161 

 137 



2401 



176 



247 



129 



14!) 



275i 



250 



Yield of 

 3 rows 

 Early 

 Rose. 



Lbs. 



75 

 70 

 21 



32i. 



19i 



48 



33 



231 

 51" 



40i 



48 



161 



195 



45i 



29" 



26 



16 



10 



30 



314 



21" 



Total yield 

 per acre. 



Bush. Lbs. 



247 20 

 265 40 

 123 50 



128 10 



104 40 



180 10 



156 30 



162 30 

 197 10 



172 50 



232 40 



118 30 



97 50 



172 



114 40 



141 40 



93 10 



97 40 



156 



171 10 



155 10 



$C— 3£ 



