frrigation for Citrus Fruits. 169 
is really the ultimate measure of the duty of water in each in- 
stance. Jn the case of fruit trees and vines, then, whatever 
amount of water secures thrifty and adequate wood growth and 
strong, good-colored foliage, but not excessive or rank growth; 
and abundance of good-sized and rich, but not monstrous and 
watery, fruit, is the proper amount for that place and that pro- 
duct,—and to the ascertainment of that amount, by local expe- 
rience of himself and others, the grower should employ his most 
earnest thought and his keenest insight. 
It is, however, a fact that this rapid generation seeketh per- 
sistently after a sign, and has more respect for one who declares 
a recipe than for one who suggests a reason. Evidently some 
outlines, at least, of a prescription must be attempted, and possi- 
bly it may serve as some sort of a measure to those who may be 
beginning without any knowledge whatever on the subject. 
During the year 1899 the writer renewed his data of the irri- 
gation practise of California fruit growers by systematic inquiry, 
and presents in adjacent tables a partial transcript of the results, 
which may be suggestive to inquiring minds. 
INSTANCES OF IRRIGATION FREQUENCY, SEASON AND VOLUME. 
CITRUS FRUITS. 
No. of Acre-inches* 
i Pes Time of Season 
County. eee ae irrigations. cleo Totals. 
Tulare 5 to 8 Aprilto Oct. 4 20 to 32 
“ 8 to 10 Mar. to Oct.. 6 48 to 60 
Fresno 2 to 7  Aprilto Oct. 2 4 to m4 
Ventura... ......4 20 5 to 6 Mar. to Oct.. 2% 12% to 15 
Los Angeles...... 12 3 June to Oct. 6 to 9 18 to 27 
a Io 6 May to Oct. 3% 2I 
3 June to Oct.. 4 12 
3 to 4 July toSept. 1% 4% to 6 
3 to 7 a OY foceey Wad 2 to 7 
6 es fe og SE tO: 2 4% to 12 
7 Mar.to Nov. 1% 10% 
3 oe og 6 
6 May to Oct. 1% 9 
7 Aprilto Oct. 1% 10% 
4 July to Oct. 1% 6 
4 May to Oct. 2% Io 
4 to 8 a ie 2 8 to 16 
6 to 8 ut fo 24 to 32 
a May to Nov.. 3° 21 
6 Apr.to Sept. 1% 10 
7 Apr. to Nov.. 3 21 
8 Apr. to Dec.. 
3 to 7 May to Nov.. 
4 to 6 May toSept. 6 24 to 36 
6 to 7 Juneto Oct... 4% to Io 24 to 31% 
4 to 6 May toSept. 6 24 to 36 
4 May to Oct... 2% Io 
5 “ “6 ies a 15 
4 to 8 es 0g 8 to 16 
6 to 8 “ See 24 to 32 
3 June to Oct.. 3 9 
I2 
