farmstead picture
 
 
Resource Homepages  
ISU Extension
IA State Univ.
IA Dept. of Ag
IA DNR
IA Crop and Pest Mngt. Newsletters
Field and Feedlot
J. Dejong
V. Schmitt
J. Holmes
J. Fawcett
B. Lang
J. Jensen
ICM  (IA)
Other States
MN Crop News
C.O.R.N. (Ohio)
Crop Watch (NE)
Crop & Pest Management (IL)
Kansas Insect Newsletter
CAT Alert (MSU)
MN Pest Report
SW MN Pest
WI Crop Mngr
ICPM (MO)
Other States
Weather Data
Iowa Mesonet
IDALS
MN Ag Climate
High Plains RCC
NCDC
Biotechnology
AgBioWorld (for)
ETCgroup (against)
 
Agriculture Search Engines
AgNIC
AgFind
Agriculture Databases
Agrisurf
AgView
AgWeb
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Northwest Iowa Crops Page
by Todd Vagts
ISU Extension Crops Specialist
Counties Served:  Carroll, Calhoun, Crawford, Ida, Monona, Pocahontas and Sac.

[Home][ISU Extension][IA State University]

Spring 2003 Subsoil Moisture Survey Results

  • Counties:  Carroll, Calhoun, Sac, Crawford, Monona and Ida
  • Date Sampled:  April 3 (Sac County), April 10 (Carroll, Calhoun and Pocahontas Counties) and April 15 (Ida, Crawford and Monona Counties)

Last fall’s sampling indicated very good soil moisture profiles across the region and despite last winter’s lack of moisture, most areas picked up some additional moisture for this seasons crop.  When compared to the average spring moisture levels (1999 – 2003), the spring 2003 sub-soil moisture condition is about 115% of the 5-year average, with a range of 94% (soybean field near Dow City) to 138% (corn field near Castana).  Interestingly, the Castana location with 138% of the spring average is still one of the driest sample sites in west-central IA.  On average across sampling locations, 8.6 inches of plant available water (PAW) is stored in the 60-inch rooting zone.  This is the best spring sub-soil moisture condition the area has been in since 1999 when an average 10.1 inches of PAW was stored in the 60-inch rooting zone. 

Carroll, Calhoun, Sac, Ida and Pocahontas counties have very good soil moisture profiles, averaging 10.25 inches of plant available water in the top 60-inches, 1.75 inches more than last spring and 0.65 inches more than last fall.  Carroll and Pocahontas counties have the best sub-soil moisture profile with their PAW capacities filled to 97% and 100% respectively.  On the other hand, Monona and Crawford counties (although improved from last fall) need substantial spring rains to replenish the soil moisture profile.  These 2 counties have an average of 6.4 inches (PAW), which is 55% of the soils holding capacity.  The soil profile in the driest counties needs to be recharged in the 36 – 60 inch depth level.

Graphs
Detailed Excel worksheet

State-wide map and Commentary by Elwynn Taylor

 

2003 Spring Subsoil Moisture Survey Results

      Previous Sample Plant Available Water    60-inch soil profile
County Township Town Crop Date Inches % of Capacity
Carroll Washington Carroll corn 04/10/03 12.1 97.1%
             
Crawford Paradise Dow City soybean 04/15/03 6.2 53.4%
             
Crawford Paradise Dow City corn 04/15/03 8.3 70.6%
             
Ida Grant S-C Ida County soybean 04/15/03 8.4 71.7%
             
Ida Maple Battle Creek Corn 04/15/03 9.0 72.6%
             
Ida Griggs Holstein soybean 04/15/03 10.3 82.9%
             
Monona Center Castana Corn 04/15/03 6.7 57.8%
             
Monona Center Castana Soybean 04/15/03 5.8 49.3%
             
Monona Center Castana Corn 04/15/03 4.4 37.4%
             
Sac Richland Odebolt north Soybean 04/03/03 10.3 83.6%
             
Sac Eurek Schaller Corn 04/03/03 10.1 81.1%
             
Sac Jackson Sac City Soybean 04/03/03 9.1 83.5%
             
Sac Sac Auburn Corn 04/03/03 8.7 89.7%
             
Sac Wheeler Odebolt South Soybean 04/03/03 8.6 69.6%
             
Poke Roosevelt Gillmore City Soybean 04/10/03 11.4 102.9%
             
Calhoun Elm Grove Yetter Corn 04/10/03 8.9 80.4%
Area Average         8.6 74.0%

 

Historical Spring Sample Results

    PAW - Inches (Spring) % of Spring Average
County Town 2003 2002 2001 2000 1999 2003
Carroll Carroll 12.1 9.5 10.2 6.6   126%
               
Crawford Dow City 6.2 4.6 6.7 6.4 9.4 94%
               
Crawford Dow City 8.3 5.5 7.1 3.8   134%
               
Ida S-C Ida County 8.4 8.2 4.3 6.9 10.7 109%
               
Ida Battle Creek 9.0 8.2 5.3 6.6 8.3 121%
               
Ida Holstein 10.3 11.1 6.6 6.4 9.9 116%
               
Monona Castana 6.7 4.5 5.5 2.8   138%
               
Monona Castana 5.8 5.5 8.2 4.7   96%
               
Monona Castana 4.4 2.0 3.7 2.9   135%
               
Sac Odebolt north 10.3 9.6 10.6 7.4 10.6 106%
               
Sac Schaller 10.1 11.3 9.6 4.7 11.0 108%
               
Sac Sac City 9.1 8.9 8.4 7.1 10.2 104%
               
Sac Auburn 8.7 7.6 7.0 4.1 10.6 115%
               
Sac Odebolt South 8.6 8.9 8.1 6.4 10.6 101%
               
Poke Gillmore City 11.4 8.8       113%
               
Calhoun Yetter 8.9 5.9       120%
Year Average   8.6 7.5 7.2 5.5 10.1 115%

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  

 

This page last updated on 11/03/03

IOWA STATE UNIVERSITY
OF SCIENCE AND TECHNOLOGY

Non-Discrimination and information