New potato soil nutrient calculator app released

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Great Salt Lake Minerals, a division of Compass Minerals, launched a powerful mobile tool designed to help potato growers and crop consultants make more accurate soil nutrient decisions and maximize yield potential.

The Potato Potassium Uptake Calculator is now available here or is available for download to an iPad device via the Apple App Store for iPad. Those who wish to download the application to an iPad can visit the Apple App Store. Please note that the app is not optimized for the iPhone, because the required data input is not for the small screen. It is also available for Android devices here.

According to Robert Mikkelsen, Ph.D., with the International Plant Nutrition Institute (IPNI), “potatoes managed for maximum productivity have a high demand on soil nutrients.” 

click image to zoom In his 2006 publication, “Best Management Practices for Fertilizer”, Mikkelsen points to a study done by Oregon State University in which potatoes removed approximately 515 lb./A of potassium from the soil, and approximately 34 lb./A of sulfur, in addition to other nutrients such as nitrogen, phosphorus, calcium and magnesium (Table 1, Addendum). 

Numerous University studies have documented the benefits of proper potassium fertilization in potato production. Potassium availability influences the tuber size and yield, in addition to a number of tuber quality factors such as specific gravity, blackspot bruise susceptibility, chip and fry color and storage quality.  Potassium deficiencies decrease photosynthesis, reducing dry matter and starch formation.1 

To learn more about the benefits of using Sulfate of Potash and improving potato quality and quantity, visit

“We wanted to provide potato growers and field consultants with an effective tool to help them understand how much potassium was being removed from their soil, based upon their yield,” explained Dave Furbeck, marketing communications manager with Great Salt Lakes Minerals. “We plan to develop additional on-line tools to help potato producers make smart soil nutrient choices and get the most yield potential possible out of their fertilizer budget.”

1 J. Stark, D. Westermann and B. Hopkins, “Nutrient Management Guidelines for Russet Burbank Potatoes”, University of Idaho College of Agricultural and Life Sciences, Extension bulletin #840, 2004. 

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UT  |  August, 06, 2013 at 10:45 AM

Why do you assume every one uses Apple, I don't own a single apple product and don't plan to buy apple phones or tablets in the near future, please make a app for the android tablet and phone so we can all use this technology!! PS most of my growers use android systems as well so you are missing a big market by developing apps for apple and not android.

Lenexa, KS  |  August, 08, 2013 at 01:39 PM

Great Salt Lake Minerals told us they do have an app for the Android market. It is available at

canada  |  August, 22, 2013 at 01:05 AM

Hi there, Does not need to debate on which platform nutrient calculator need to developed. i gone through few sites and found that Online nutrient calculator where you can calculate nutrients level online directly. please find the link for the same...

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