HOW IT SHOULD BE GROWN. 43 



Guano used alo7ie is destructive; an instance 

 is recorded of the produce of a whole season 

 being refused for purchase on account of tlie 

 strong taint produced by this form of manuring. 



Green manuring, liquid manure, poultry-yard 

 scrapings, and ashes are very valuable ; the fields 

 are sometimes spread with branches of trees in 

 the autumn, which are burnt on the spot, and 

 the ashes left to mingle with the soil; road- 

 scrapings, town manure, lime, gypsum, and com- 

 post manure — all these are in different ways 

 beneficial to the tobacco plant — but every dressing 

 which does not become finely incorporated with 

 the soil is destructive, producing mould and 

 other ill effects. 



The land must be deeply ploughed in autumn, 

 and the manure, if fresh, put in then. Before 

 setting the plants, the land must be finally 

 ploughed deeply and evenly, and carefully 

 smoothed and harrowed. 



" When tobacco is planted on the three years' 

 system of rotation," says Herr Mandis, speaking 

 of tobacco as a rotation crop, " it is best to set it 

 in fresh manured fallow ground, this crop to be 

 succeeded by a winter one, as wheat or rye, and 

 in the third year by a summer one, as barley, 

 oats, etc. The fallow ground, however, should 



