ISTRO welcomes as members all persons and institutions interested in the study or application of soil tillage and related subjects. ISTRO has approximately 700 members in more than 70 countries. There are five categories of membership: individual, student, corporate, honorary, and retired members.

  • Individual membership fees are (in US dollars) $21/year (base membership fee)
  • or $96/year (base membership fee plus subscription to Soil & Tillage Research journal).
  • Membership fee is reduced to US$ 7 for members from Low-Income, Lower-Middle-Income and Upper-Middle Income Economies as defined in the various tables on this World Bank website page.
  • Corporate members pay $84/year (base fee which includes one voting and three nonvoting members).
  • Retired members pay $7/year.
  • Students pay $7/year.

Membership application procedure

In order to apply for the ISTRO membership, please read the following instructions before filling out the forms:

  1. Fill out the on-line membership application form,
  2. Fill out the pdf payment form that can be downloaded from the bottom of the on-line membership application form. The form can be filled out on your computer if you have the Acrobat pdf reader 7.0 or higher installed. If you don't have the Acrobat reader installed, you can install it by following this link.
  3. Print the filled-out payment form, and send it by regular mail or by FAX to the ISTRO treasurer:
Dr. Stephen Prior
411 S. Donahue Dr., Auburn, AL 36832 USA


FAX: (334) 887-8597 FAX (International): +1-334-887-8597

Remark: If you are registering from a Developing Country at the reduced rate, please do so as part of a larger group if you can and then write one membership payment check or fund transfer to the treasurer.