Using Fieldwork Days Data to Manage Fieldwork
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Transcript of Using Fieldwork Days Data to Manage Fieldwork
Using Fieldwork Days Data to Manage Fieldwork
Ray Massey and Pat GuinanUniversity of MissouriCommercial Ag Program
Crop Progress and Fieldwork DaysApril through November USDA data –
Reporters’ opinion of ▪ crop conditions and soil conditions allowing
equipment into the field▪ Percent of crops at various stages
http://www.nass.usda.gov/Statistics_by_State/Missouri/Publications/Crop_Progress_and_Condition/
Crop Reporting Districts
NW Missouri Field Workdays
Mar 27Ap
r 10Ap
r 24
May 08
May 22
Jun 05
Jun 19
Jul 03
Jul 17
Jul 31Au
g 14Au
g 28Se
p 11Se
p 25Oct
09Oct
23Nov
06Nov
200
1
2
3
4
5
6
Day
s pe
r w
eek
NW Corn Planting Date
Mar 20Apr 03
Apr 17May 01
May 15May 29
Jun 12Jun 26
0102030405060708090
100
1980-1989 1990-1999 2000-2010
Perc
ent
Com
plet
e
Average Date of
Last Spring Frost
Missouri April Precipitation
19801982
19841986
19881990
19921994
19961998
20002002
20042006
20080.00
2.00
4.00
6.00
8.00
10.00
Apr
il Pr
ecip
itatio
n (in
.)
Median Date of Last Spring Frost (≤32°F) 1971-2000
NW MO Corn Planting: Median date
1977
1979
1981
1983
1985
1987
1989
1991
1993
1995
1997
1999
2001
2003
2005
2007
2009
20-Mar
9-Apr
29-Apr
19-May
8-Jun
28-Jun
18-JulMedian Trendline Outliers
Day
s
1 day earlier every 6 years
NW MO Corn Planting: Days between 25th and 75th percentiles
1977
1979
1981
1983
1985
1987
1989
1991
1993
1995
1997
1999
2001
2003
2005
2007
2009
0
5
10
15
20
25
30
35
40 Days between Trendline Outliers
Dur
atio
n in
Day
s Increase 1 day every 6 years.
NW Corn Harvesting Date
Aug 21Sep 04
Sep 18Oct 02
Oct 16Oct 30
Nov 13Nov 27
Dec 110
102030405060708090
100
1980-1989 1990-1999 2000-2010
Perc
ent
Com
plet
e
Average Date of First Fall
Frost
Factors Affecting Planting DateWeather: rainfall and temperatureSeed CoatsSeed GeneticsSeed Company Promotions – replant
provisionsAdoption of no-tillLarger equipment – faster plantingLarger farmsCustom fertilizer and farming
Uses of PFDM Equipment management – number of
pieces of equipment necessary to complete fieldword with confidence.
Land acquisition questions – can I add 200 acres with existing equipment?
Cropping dynamics – given delayed planting, what is the probability successfully carrying out current cropping plan.
Nutrient management plans – probability of completion for regulatory purposes
crops.missouri.edu
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