# NDSU Nitrogen Calculator

> NDSU Nitrogen Calculator (iPhone/iPad app by North Dakota State University.)

- Source: https://appshunter.io/ios/app/ndsu-nitrogen-calculator/id6444536816 (this page in markdown: same URL + `.md`)
- Developer: [North Dakota State University](https://appshunter.io/developer/493125863)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 34 MB
- Released: 2022-11-23
- Data updated: 2026-05-18
- User reviews in markdown: https://appshunter.io/ios/app/ndsu-nitrogen-calculator/id6444536816/reviews.md

## What is NDSU Nitrogen Calculator?

This application provides four NDSU crop nitrogen recommendation calculators for use in North Dakota sunflower, corn, 2-row malting barley, and spring wheat/durum, respectively. The research N-rate database underlying these calculators is from the many-years of field research conducted by Dr. David Franzen, Soil Extension Specialist at North Dakota State University, and others. 

Nitrogen recommendation calculations are based on an economic production function that takes into account the yield response of the crop to added N, less the cost of the N. The recommendation is based not only on the yield increase from additional N, but the price of the commodity and the cost of N. Use of this app might help reduce total nitrogen fertilizer cost, increase nitrogen use efficiency, decrease pollution to the soil and water caused by overused nitrogen fertilizer, and thus improve the sustainable use of natural resources.


## Version history (last 4 releases)

### 3.2 — 2023-09-05

Two-row malting barley nitrogen recommendation calculator is added to this app.
Errors in spring wheat/durum nitrogen calculator have been fixed.
Other minor errors have been fixed.

### 2.1.2 — 2022-12-12

Some minor errors are fixed.

### 2.1.1 — 2022-11-27

Some background color abnormal displaying issues have been revolved.

### 2.0 — 2022-11-23

No release notes.

## Apps similar to NDSU Nitrogen Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Panorama by Precision Planting](https://appshunter.io/ios/app/panorama-by-precision-planting/id1663306634) | 4.6 (20) | Free | Productivity |
| [FieldX Sampling](https://appshunter.io/ios/app/fieldx-sampling/id930155256) | 3.8 (4) | Free | Productivity |
| [UHarvest Pro](https://appshunter.io/ios/app/uharvest-pro/id1473072517) | 4.5 (6) | Free | Productivity |
| [FieldX Mobile](https://appshunter.io/ios/app/fieldx-mobile/id6497066777) | 4.5 (2) | Free | Productivity |
| [FieldX Journal](https://appshunter.io/ios/app/fieldx-journal/id607064685) | 4.6 (7) | Free | Productivity |
| [Ag PhD Soils](https://appshunter.io/ios/app/ag-phd-soils/id1291370839) | 1.6 (13) | Free | Productivity |

## More apps by North Dakota State University

- [NDSU Pest Management](https://appshunter.io/ios/app/ndsu-pest-management/id859312458)
- [Small Business Disaster Plan](https://appshunter.io/ios/app/small-business-disaster-plan/id958227092)
- [NDSU Grazing Calculator](https://appshunter.io/ios/app/ndsu-grazing-calculator/id1213526389)
- [NDAWN Potato Blight](https://appshunter.io/ios/app/ndawn-potato-blight/id1274663369)
- [Gypsum Requirement](https://appshunter.io/ios/app/gypsum-requirement/id1299303426)
- [NDAWN Inversion](https://appshunter.io/ios/app/ndawn-inversion/id1385751300)

All apps by North Dakota State University: https://appshunter.io/developer/493125863

## Related topics

[ndsu nitrogen calculator](https://appshunter.io/ios/topics/ndsu-nitrogen-calculator) · [bison 1660](https://appshunter.io/ios/topics/bison-1660)

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-18.*