132 



EXPERIMENTAL FARMS. 



TOBACCO— TABLE 11. 



EXPERIMENTS WITH FERTILIZERS. 



All these varieties were sown on the 9th of April, were planted out on 8th of 

 June, and were gathered on 14th September, twenty -four plants were used of each sort. 



Fertilizer, 



No. I. 



.. n..., 

 .. III.., 



.. IV..., 



., V ..., 

 „ VI... 

 „ VII.., 

 „ VEIL, 

 ,. IX..., 



u 



O 



0-1 *' 

 O 1) 





11 

 15 8 

 14 8 



17 



14 8 



15 

 13 



12 8 

 15 8 



o 

 p 

 o 



fe.SP 



o a> 

 %^ 



I-? 



15 



13 8 



15 



15 8 



14 

 13 

 15 

 13 

 12 



-c . 

 P4 



m 



22 8 



17 



22 



18 8 



26 

 26 

 20 

 13 

 16 



r 



1-3 O 



21 



20 



20 8 



19 8 



19 8 



19 8 



19 8 



19 8 



21 



(V 



■-5 



CQbp 

 O 





13 8 



15 



17 8 



19 



17 

 16 

 17 

 17 

 13 



ID 

 CO 

 O 





h) O 



12 8 



13 8 



16 8 



12 



0,11 



11 



10 



8 8 



w a 

 ., ® 



o ft 

 E-i 



(-; o 



94 8 



104 8 



106 8 



100 8 



101 8 

 95 



95 

 85 



96 



Fertilizers used. 



f Superphosphate, 10 lbs "1 ia iv,= *-, oa 



I Muriate of potash „ y^ f^' *° ^ 



t Sulphate of ammonia, 10 lbs, j P^°ts. 



r Superphosphate, 15 lbs. "j 



< Wood ashes, 10 lbs V n 



(.Sulphate of ammonia, 10 lbs. . J 



r Superphosphate, 15 Iba. .... "j 



< Wood ashes, 15 lbs V u 



(.Nitrate of soda 5 lbs J 



r Superphosphate 15 lbs "j 



< Muriate of pota.sh, 10 lbs. V » 



(.Nitrate of soda, 5 lbs ....... J 



Bam yard manure (green) 200 lbs. to 24 plants. 



Wood ashes, 24 lbs. to 24 plants. 



Nitrate of soda, 6 lbs. to 24 plants. 



Muriate of potash, 6 lbs. to 24 plants. 



Check plot ; no fertilizer. 



TOPPING AND PRIMING. 



" Topping " is the operation of removing the flower stalk, with one or more of the 

 upper and smaller leaves. The energies of the plant are thus diverted from the natural 

 channel — the production of seed — to the artificial — the more perfect development of its 

 leafy tissue. After the first topping, numerous suckers usually appear in the axils of the 

 leaves ; these should be promptly removed. " Priming " is the term used to designate the 

 removal of one or two of the lower or primary leaves, which are usually inferior in size 

 and quality, frequently becoming torn and injured by the cultivator. I have noted the 

 fact in past years that early " topping " usually meant an abundant and persistent 

 growth of suckers. To test this, a block containing 108 plants including 7 varieties was 

 taken and divided into 6 equal portions. Series I contained two plots. Plants in plot 

 1 were cut back to 9 leaves on July 20, those in plot 2 were cut back to 11 leaves on 

 the same date. 



The number of plants in series II and III were divided and cut back respectively 

 on July 26th and August 2nd. 



RESULTS. 



Reld notes show that it was necessary to " sucker " plants in series I twice after 

 topping them. This work of removing the suckers is laborious and rather expensive. 



