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Northwest Iowa Crops Page
by Todd Vagts
ISU Extension Crops Specialist
Counties Served: Carroll, Calhoun, Crawford, Ida, Monona,
Pocahontas and Sac. |
[Home][ Newsletter 2005 ] [ Field and Feedlot ] [ Stakeholder Report ] [ Soybean Aphid ] [ Soybean Rust ] [ Special Topics ] [ Crop Modeling ] [ Weather Data ] [ Yield Trials ] [ IA Crop Stats ] [ Subsoil H20 ]
[ISU
Extension][IA
State University]
Fall 2001 Subsoil Moisture Survey Results
- Counties: Carroll, Sac, Crawford, Monona, Pocahontas and Ida
- Date Sampled: October 29 - 31
Graphs
Detailed Excel worksheet
Soil moisture status is quite variable across the region, depicting the
variable rainfall that was observed during the summer and fall months. Subsoil
moisture status ranges from a low of 0.7 inches (6% capacity) plant available
water (PAW) under an alfalfa field in Monona County to 9.8 inches PAW (78%
capacity) under a soybean field in Sac County. Most fields are in far better
shape this sampling period compared to samples taken the last two falls.
Generally, subsoil moisture status improves as you move north and east from
Monona County.
Areas in Monona, Ida, Carroll and Crawford counties still require much needed
rainfall to bring the soil profile up to Capacity. The five-foot soil profile
ranges from 15% to 50% of capacity for PAW in these counties. Soil moisture
reserves are by far the best in Sac and Pocahontas counties where the sample
locations ranged from 50% to 80% of total potential PAW. All locations need to
recharge soil moisture levels at the soil depth of 3 to 5 feet.
|
County |
Site |
Soil |
Crop |
Sample Date |
Plant Available
Water (5 ft) |
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Inches |
% |
|
Carroll |
Heinen |
Marshall Silty Clay Loam |
Soybean |
31-Oct |
8.0 |
64% |
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Crawford |
Steffen |
Monona Silt Loam |
Corn |
31-Oct |
2.1 |
18% |
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Crawford |
Steffen |
Monona Silt Loam |
Soybean |
31-Oct |
4.3 |
37% |
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Ida |
Schug |
Monona Silt Loam |
Corn |
31-Oct |
3.4 |
29% |
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Ida |
Goodenow |
Marshall |
Corn |
31-Oct |
5.5 |
44% |
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Ida |
Parker |
Marshall Benches |
Corn |
31-Oct |
7.3 |
59% |
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Monona |
WIRF |
Monona Silt Loam |
Soybean |
31-Oct |
1.8 |
15% |
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Monona |
WIRF |
Monona Silt Loam |
Corn |
31-Oct |
4.0 |
34% |
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Monona |
WIRF |
Monona Silt Loam |
Alfalfa |
31-Oct |
0.7 |
6% |
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Sac |
Buehler |
Primghar |
Corn |
29-Oct |
7.8 |
63% |
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Sac |
Riniger |
Galva |
Soybean |
29-Oct |
9.8 |
79% |
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Sac |
Berry |
Clarion |
Corn |
29-Oct |
8.5 |
77% |
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Sac |
Graber |
Canisteo |
Soy bean |
29-Oct |
7.7 |
79% |
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Sac |
Wilken |
Marshall |
Corn |
29-Oct |
6.2 |
50% |
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Pocahontas |
Reigelsberger |
Nicollett |
Corn |
2-Nov |
6.2 |
56% |
Graphs
Detailed Excel worksheet
Todd Vagts
Iowa State University Extension
Field Crops Specialist
1240 D. Heires Avenue
Carroll, IA 51401
Office: 712-792-2364; Cell: 712-249-6025; Fax: 712-792-2366
Email: vagts@iastate.edu
[ Newsletter 2005 ] [ Field and Feedlot ] [ Stakeholder Report ] [ Soybean Aphid ] [ Soybean Rust ] [ Special Topics ] [ Crop Modeling ] [ Weather Data ] [ Yield Trials ] [ IA Crop Stats ] [ Subsoil H20 ]
This page last updated on
01/26/05
IOWA STATE UNIVERSITY
OF SCIENCE AND TECHNOLOGY
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