Agronomic Crops Medallion Crop Recommendation and Observation Network by the Agronomic Crops Team
black.gif
Search
Advanced Search
clear.gif
Crop Info

*Corn
*Soybean
*Wheat
*Forages
*Weeds
*Diseases
*Insects
*Crop Injury
*Fertility
*Equipment / Tillage
*Precision Agric.
*Soil & Water Mgt.
*Environment
*Identity Preserved
*Weather
*Ag Markets

Services
clear.gif
nbottom.gif

C.O.R.N Newsletter 2008-18
     June 16, 2008 - June 24, 2008


Back to main issue

black.gif


Estimating Soybean Stands
by Dennis Mills

Newsletter Options
lorange.gif clear.gif
  Print image 
Print this story
  Email image Email this story clear.gif
  Pda image  Handheld devices
clear.gif
lorange.gif
optionsbottom.gif
Soybeans have emerged now and evaluation of the stand maybe needed. Poor stands may occur at one time or another and producers need to be aware of the potential yield loss from those deficit stands and the cost of replanting. Soybeans have a high capacity to compensate for low plant populations and gaps in the row.
If a poor stand does occur producers should investigate. Was the poor stand the result of poor seed quality, cold wet soils, hot dry soils, planting too deep or shallow, soil crusting, herbicide injury, insect feeding, poor soil to seed contact, or disease infection? Determine if the cause can be corrected to avoid a similar situation.
One popular method to determine plant population is by using a hula hoop. This involves placing a circular measuring device such as a hula hoop on the ground and counting the plants contained within. Use the table below, listing various sizes of hoops, to determine the number of plants per acre.

Hula hoop method for determining drilled soybean populations.
. Inside Diameter of Hula Hoop
No. of plants 30 in 32 in 34 in 36 in 38 in
. Plants (1000/acre)
6 53 47 41 37 33
10 89 78 69 62 55
14 124 109 97 86 77
18 160 140 124 111 100
22 196 172 152 136 122
26 231 203 179 160 144


Readers can subscribe electronically to this newsletter by signing up at http://agcrops.osu.edu/services/email.html. E-mail labarge.1@osu.edu if you have problems subscribing or no longer wish to receive this newsletter.

C.O.R.N. is a summary of crop observations, related information, and appropriate recommendations for Ohio Crop Producers and Industry. C.O.R.N. is produced by the Ohio State University Extension Agronomy Team, State Specialists at The Ohio State University and Ohio Agricultural Research and Development Center. C.O.R.N. Questions are directed to State Specialists, Extension Associates, and Agents associated with Ohio State University Extension and the Ohio Agricultural Research and Development Center at The Ohio State University.


Information presented above and where trade names are used, they are supplied with the understanding that no discrimination is intended and no endorsement by Ohio State University Extension is implied. Although every attempt is made to produce information that is complete, timely, and accurate, the pesticide user bears responsibility of consulting the pesticide label and adhering to those directions.

All educational programs conducted by Ohio State University Extension are available to clientele on a nondiscriminatory basis without regard to race, color, creed, religion, sexual orientation, national origin, gender, age, disability or Vietnam-era veteran status.

Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, Keith L. Smith, Director, Ohio State University Extension.

TDD # 1 (800) 589-8292 (Ohio only) or (614) 292-1868

dgreen.gif
Home | Newsletter | Calendar | Education | Research | Resources | Decision Tools | Photo Library | About [top]
black.gif
clear.gif
Agriculture and Natural Resources. Our Teams will make you a winner
clear.gif
Copyright by The Ohio State University 2003
Agriculture and Natural Resources
, OSU Extension, ATI, OARDC, College of Food, Agriculture, and Environmental Sciences
Link to the Ohio State University Link to Help Section Link to Contact Information