Gypsum Requirement 4+
North Dakota State University
Designad för iPad
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- Gratis
Skärmavbilder
Beskrivning
There are over 70 million acres of naturally occurring sodic soils in the United States, and over 1.4 billion acres worldwide. Gypsum has been used as an amendment for over 100 years to improve the productivity of sodic soils. Gypsum does two things: 1) provides Ca2+ to displace Na+ from the soil’s exchange sites, and 2) maintains or increases the soil salinity. Applying the correct amount of gypsum requires knowledge of soil parameters as well as the quality of the gypsum. By understanding what is required to calculate Gypsum Requirement will allow one to have the proper soil tests conducted so that the most accurate determination is made.
The Gypsum Requirement app can be used to answer the question “how much gypsum should I apply to my sodic soil?” The calculator is based on the equation developed by North Dakota native Dr. James Oster and others. The app is easy to use and allows one to easily determine the Gypsum Requirement for sodic soils.
Gypsum Requirement Main Features
Easily enter values for initial and final ESP or SAR, soil bulk density, depth needed to be treated, efficiency, gypsum purity, and cation exchange capacity.
Gypsum Requirement is reported in units of Mg/ha or tons/acre.
Nyheter
Version 1.2
This app has been updated by Apple to display the Apple Watch app icon.
A minor error in the introduction section was corrected.
Appintegritet
Utvecklaren North Dakota State University har inte informerat Apple om dess integritetspraxis och hantering av data.
Ingen information tillhandahållen
Utvecklaren måste tillhandahålla integritetsinformation i nästa appuppdatering.
Information
- Leverantör
- North Dakota State University
- Storlek
- 14,1 MB
- Kategori
- Produktivitet
- Kompatibilitet
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- iPhone
- Kräver iOS 10 eller senare.
- iPad
- Kräver iPadOS 10 eller senare.
- iPod touch
- Kräver iOS 10 eller senare.
- Mac
- Kräver macOS 11.0 eller senare och en Mac med Apple M1‑chip eller senare.
- Apple Vision
- Kräver visionOS 1.0 eller senare.
- Språk
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engelska
- Ålder
- 4+
- Copyright
- © 2017 North Dakota State University
- Pris
- Gratis