The lemon responds very freely to the application of The 



fertilizers, and the quantity of nitrogen applied may with Cultivation of 



advantage be ten or twelve per cent, greater than has been _ 

 prescribed for the orange. 2 5 



The Lime, the Citron, and Minor Citrus Species. 



The lime is much less hardy than the lemon. It has 

 been killed in situations where the orange and lemon have 

 not been injured. 



Limes are grown from seed, the variety usually coming 

 true from seed. The trees are small and are frequently 

 grown in hedge form. 



The Citron, on the other hand, is quite hardy. As yet 

 there is no considerable production in California, although 

 experimental planting is continued with some activity. 



Various minor citrus species, including the Bergamot, 

 are grown to some extent in southern California, but chiefly 

 for curiosity or ornament. 



What has been indicated above in the case of the lemon 

 will apply generally to the fertilization of these species. 



In conclusion we would say that we do not pretend to 

 have done more in this little work than briefly touch upon 

 salient points in connection with specified divisions of the 

 subject. Our object has been to aid the grower of citrus 

 fruits by pointing to methods of culture which have been 

 ascertained chiefly by the labours of the Experiment Sta- 

 tions to be the best, and the most likely to be pursued with 

 advantage and prospective profit. 



We expressly disclaim any attempt to lay down hard- 

 and-fast rules or to give directions which should supersede 

 the exercise of the planter's own judgment, or replace the 

 indications afforded by his knowledge of the particular con- 

 ditions, as respects soil and climate, in which he is working. 



General Directions for 

 the Use of Nitrate of Soda on Staple Crops. 



The use of Nitrate of Soda alone is never recommended, 

 except at the rate of not more than one hundred pounds to 

 the acre. // may be thus safely and profitably used without 

 other fertilizers. It may be applied at this rate as a Top- 



