40 BULLETIN 1435, U. S. DEPARTMENT OF AGRICULTURE 
Thirty-eight of the groves were operated by owners and 62 groves — 
were operated by caretakers. The caretakers furnished all labor, 
equipment and supervision. Financially the caretaker groves did 
just as well as those operated by the owners. 
The gross receipts were $7,016 per farm on the average, increasing 
from $2,700 in 1917 to $10, 301 in 1920. Ninety-seven per cent of 
these receipts were from citrus fruits. Total expenses were on the 
average $2,824 per farm, increasing from $1,487 in 1917 to $3,621 in 
1920. Of these, fertilizer was the most important item constituting 
45 per cent of the total and labor was the second with 29 per cent. 
The return to capital and supervision was $4,192 per farm on the 
average, increasing from $1,213 in 1917 to $6,680 in 1920. The 
average return on capitalization was 11.8 per cent, ranging from 4.1 
per cent in 1917 to 18 per cent in 1919. 
The average yields per acre for the different kinds of fruit were as 
follows: Grapefruit, 182 boxes; oranges, 152 boxes; and tangerines, 
186 boxes. 
The average price per box received by the grower for the different 
kinds of fruit were: Grapefruit, $1.61 per box; oranges, $2.59 per 
box; tangerines, $3.70 per box. 
The yearly income from citrus growing was influenced by yield 
per acre, price received per box, kind of fruit and operating cost 
per acre. 
The most important factors affecting yields per acre were quantity 
a ere used, number of trees per acre, age of trees and variety 
of fruit. 
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