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You may cancel your subscription to The NPK Insider by sending an email request via Contact Us. A full refund will only be given if the request for cancellation is sent within 30 days of your subscription.  Cancellation requests sent after the first 30 days will not be entitled to a refund.


It is the responsibility of each subscriber to renew subscriptions prior to the expiration date to ensure any lapse of access and benefit of the service. We will send a friendly renewal reminder via email prior to the expiration date. We will not automatically charge your credit card upon each expiration period.  You will have to go to the Subscribe page to renew your subscription.


We are committed to protecting your privacy. The information we collect from you will only be used for the purposes of identifying current subscribers, processing payments and to contact you via email. Third-party solicitations will not be a part of any messages sent to you.

Your personal information that we collect will not be sold or otherwise shared with anyone else. We do not store your credit card information.

This site uses cookies to identify if you are logged in as a current subscriber. No cookies containing personal data will be set. No third-party tracking cookies will be issued.


This User Agreement (this "Agreement") is a legal agreement between you and NPK Fertilizer Advisory Service Inc. ("NPKFAS"). BY ACCESSING, BROWSING AND/OR USING THIS NPKFAS SITE ("SITE"), YOU ACKNOWLEDGE THAT YOU HAVE READ, UNDERSTOOD AND AGREE TO BE BOUND BY THE TERMS OF THIS AGREEMENT AND TO COMPLY WITH ALL APPLICABLE LAWS AND REGULATIONS. If you do not agree to the terms of this Agreement, do not use this Site. Any claim relating to the Site, and the use of this Site and the materials contained herein, are governed by the laws of the State of Missouri.


NPKFAS reserves the right to update or amend this Agreement at any time. The amended Agreement shall automatically be effective five (5) days after it is posted on the Site. Your continued use of the Site after the effective date of any amended Agreement constitutes your acceptance of the modified Agreement. For this reason, we encourage you to review this Agreement whenever you use this Site. This Agreement was last revised on December 7, 2009.


Everything you see on this web site (the "Content"), including, for example, all of the text, charts, graphics, etc., is copyrighted under United States law and applicable international copyright laws and treaty provisions. The copyrights in the Content are owned by NPKFAS, or by third parties who have licensed their materials to NPKFAS. The Content of this Site is copyrighted as a collective work under United States law and applicable international copyright laws and treaties, and NPKFAS owns the copyright in the selection, coordination, arrangement and enhancement of the Content.

You may download, store, print, and copy selected portions of the Content of this Site, provided you: (i) only use the Content you download for your personal, noncommercial use or to further your business dealings with NPKFAS; (ii) you do not publish or post any part of the Content on any other Internet site; (iii) you do not publish or broadcast any part of the Content in or on any other media; (iv) you do not modify or alter the Content in any way or delete or modify any copyright or trademark notices or notices of confidentiality; (v) you do not share your email address and password to anyone in order to share this information. This permission terminates automatically if you breach any of the terms or conditions of this Agreement. Upon termination, you agree to immediately destroy all copies of any downloaded or printed Content in your possession.

Except as expressly stated above, you may not copy, download, print, publish, display, perform, distribute, transmit, transfer, translate, modify, add to, update, compile, abridge or in any other way transform or adapt all or any part of the Content of this Site without first obtaining NPKFAS's written permission.

Except as expressly stated above, no right, title or interest in the downloaded Content is transferred to you when you download Content from this Site. Except for the limited, non-exclusive license expressly granted above, nothing contained in this Agreement or on this Site shall be construed as conferring a license, be it by implication or otherwise, or any other right under any copyright, trademark, or other intellectual property right of NPKFAS or any third party.

If you have any questions or feedback related to this policy, tell us through the Contact Us link above.