Gypsum Requirement
Gratuit
1.2for iPhone, iPad and more
North Dakota State University
Developer
14,1 Mo
Size
May 11, 2018
Update Date
Productivity
Category
4+
Age Rating
Age Rating
Gypsum Requirement Captures d'écran
About Gypsum Requirement
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.
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.
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Quoi de neuf dans la dernière version 1.2
Last updated on May 11, 2018
Vieilles Versions
This app has been updated by Apple to display the Apple Watch app icon.
A minor error in the introduction section was corrected.
A minor error in the introduction section was corrected.
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Version History
1.2
May 11, 2018
This app has been updated by Apple to display the Apple Watch app icon.
A minor error in the introduction section was corrected.
A minor error in the introduction section was corrected.
1.1
Jan 20, 2018
A minor unit error in the app intro section was corrected.
1.0
Oct 25, 2017
Gypsum Requirement FAQ
Cliquez ici pour savoir comment télécharger Gypsum Requirement dans un pays ou une région restreints.
Consultez la liste suivante pour voir les exigences minimales de Gypsum Requirement.
iPhone
Nécessite iOS 10 ou version ultérieure.
iPad
Nécessite iPadOS 10 ou version ultérieure.
iPod touch
Nécessite iOS 10 ou version ultérieure.
Gypsum Requirement prend en charge Anglais