It may be calculated that each tree in full bearing will 

 Citrus 1 Fr" f ^ e ^ ten boxes of fruit, of the average weight of eighty 



pounds per box. 



2 * Each tree bearing ten boxes or 800 pounds of fruit 



will require to be supplied, to make fruit alone, with : 



Superphosphate of lime (14% soluble phosphoric acid) 2.86 pounds 

 Sulphate of potash (50% available potash) ... 5.86 " 

 Nitrate of Soda (15% nitrogen) 5.86 " 



This is on the assumption that the constituents required 

 for wood growth, etc., will be gathered from the soil, and 

 no allowance is made for losses by leaching, etc. In practice, 

 therefore, the quantity of each fertilizer will require to be 

 amplified. 



According to Bulletin No. 58 of the Florida Agricul- 

 tural Experiment Station, the experience of most growers 

 points to the use of chemical fertilizers alone for all citrus 

 trees. The grove fruits more heavily, a better quality of 

 fruit is obtained and the trees are maintained in a healthier 

 condition. 



Where large amounts of organic fertilizers are used, 

 die-back will almost surely affect the trees, and fruit contain- 

 ing a large amount of rag and of poor shipping and keeping 

 quality is the result. 



The Lemon. 



The lemon requires a practically frostless situation. 

 Under favourable conditions the tree blooms and fruits con- 

 tinuously through the year. It delights in a sandy loam, 

 but it will thrive on other soils. In southern California the 

 lemon is profitably grown upon deep clay loams, and even 

 upon strong red clay soils. 



The prevailing stock is the orange seedling. If lemon 

 seedlings are desired they may be grown in the same way, 

 but the lemon on its own root will sometimes fail where, 

 grown on the orange stock, it will thrive. The budding 

 and planting of the lemon is carried out in the same way as 

 in the case of the orange. The distance apart of the trees 

 in the grove varies from twenty to twenty five feet. Greater 

 care and attention are required to bring the lemon into good 

 bearing form and to retain it in satisfactory shape than is 

 the case with the orange. 



