COCHISE COUNTY
COTTON DEVELOPMENT ADVISORY
MAY 22, 2016
PLANTING
+/- normal
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4/1 ▒▒▒▒▒▒▒▒▒ 427
-4 days
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4/15▒▒▒▒▒▒▒ 333
-4 days
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5/1 ▒▒▒▒▒ 227
-2 days
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5/15▒ 67
-1 day
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Pin Sus
1st
1"
Pk. Bloom
Cut-Out
Terminate
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head Sq. Flowr
Boll
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S
M
F
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M
F
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F
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0
400
800
1200
1600
2000
2400
2800
3200
3600
HEAT UNITS ACCUMULATED FROM PLANTING to MAY 21
╖ = Heat Units on MAY 14; S,M,F = Short, Medium, and Full Season Varieties
HEAT UNITS
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Heat Unit (HU) accumulation since Jan 1 = 751;
HUs since Jan 1 are running about normal.
HU last week = 83
HISTORICAL STATISTICS
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Last Week : MAY 15 - MAY 21
HIGH LOW DEWPT HUs
Normal
85
49
30
94
Recorded
82
49
34
83
ESTIMATED WATER USE
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Planting date :
4/1
Water Use (last week):
.42"
RAIN
---0.03
4/15
.42"
Last year = 721;
Normal = 746
This Week : MAY 22 - MAY 28
HIGH LOW DEWPT HUs
Normal
86
50
30
98
2015
86
46
29
89
5/1
.42"
5/15
.42"
WEATHER UPDATE
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--Expect cool & breezy conditions as a trough of low pressure develops over
the Southwest this week. Storm systems associated with this pattern will track
north of AZ, resulting in little chance for precipitation. However, these
systems will draw cooler air into AZ & generate windy conditions at times.
--The most recent Ensemble Streamflow Prediction for the Colorado River calls
for spring flow of 6,600,000 Acre Feet (92% of average) with more precipitation
expected late this week.
--Nitrogen fertilizer is best applied in split applications between pinhead
square & peak bloom. For more details see publication az1243 at:
http://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1243.pdf