Apps by Oklahoma State University
Crop Nutrients in Irrigation Water Calculator app icon

Education

Crop Nutrients in Irrigation Water Calculator

Oklahoma State University

Free download In-app purchases unconfirmed
Open on Apple

About this app

Irrigation water is never without minerals and nutrients. With the input of laboratory results and an expected seasonal irrigation by the user this app will provide an estimated amount of nutrients delivered with every acre in of water applied and total pounds per acre per season. These results can then be used to adjust fertilizer management plans and strategies. Nutrients included in this app are: Nitrate, Sulfate, Iron, Ammonium, Chloride, Boron, Calcium, Magnesium and Potassium.

Latest release

What’s New

Version 2.1 Apr 1, 2016

This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included. This version has improved usability, specifically targeting the onboard keyboard.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Aug 27, 2026 · 0 ratings Aug 27, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 27, 2026 · Free Aug 27, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 27, 2026 · 2:37 AM Free

Screenshots

Crop Nutrients in Irrigation Water Calculator iPhone screenshotCrop Nutrients in Irrigation Water Calculator iPhone screenshotCrop Nutrients in Irrigation Water Calculator iPhone screenshot Crop Nutrients in Irrigation Water Calculator iPad screenshotCrop Nutrients in Irrigation Water Calculator iPad screenshot