18 TOBACCO. 



for the second, and forward, two-thirds of that employed 

 the first year will he sufficient. 



" When crops of tobacco and com are grown on the same 

 lands, half the guano should be applied to the corn and 

 the other half to the tobacco; but then a somewhat 

 larger quantity will be required. The manure should be 

 applied shortly before transplanting, and after the 

 ground has been well cross-ploughed and prepared, and 

 the ground should be plotted out into squares or beds of 

 50 yards square. The manure should then be spread and 

 ploughed in, and the land should at once be furrowed and 

 planted. 



" Under this system of applying Peruvian guano as 

 manure for tobacco the best results have been obtained, 

 and, of all the various trials made, this is the most simple 

 and the easiest to execute." 



The remarks of the last-quoted essayist are good so 

 long as guano is to be had. But there is a limit to the 

 supply, and in many places it would be unprocurable. 



The necessity for more definite knowledge concerning 

 the actual wants of the tobacco plant in the matter of 

 food, led to an investigation of the subject some years 

 ago by Prof. S. W. Johnson on behalf of the Connecticut 

 State Board of Agriculture, and more recently by Schiff- 

 mayer for the Agricultural Department of the Madras 

 Presidency. 



Prof. Johnson aptly observes it to be " a well-established 

 fact that plants may receive from the soil and retain a 

 larger portion of ash-ingredients than is needful for 

 nutrition. This is especially marked in case of the 

 lime, potash, and soda salts. The excess of these sub- 



