Gypsum Requirement
무료
1.2for iPhone, iPad and more
North Dakota State University
Developer
14.1MB
Size
May 11, 2018
Update Date
Productivity
Category
4+
Age Rating
Age Rating
Gypsum Requirement 스크린 샷
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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최신 버전 1.2의 새로운 기능
Last updated on May 11, 2018
오래된 버전
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
제한된 국가 또는 지역에서 Gypsum Requirement를 다운로드하는 방법을 알아보려면 여기를 클릭하십시오.
Gypsum Requirement의 최소 요구 사항을 보려면 다음 목록을 확인하십시오.
iPhone
iOS 10 이상 필요.
iPad
iPadOS 10 이상 필요.
iPod touch
iOS 10 이상 필요.
Gypsum Requirement은 다음 언어를 지원합니다. 영어
