NDSU Nitrogen Calculator
Free
3.2for iPhone, iPad and more
North Dakota State University
Developer
36 MB
Size
2023年09月05日
Update Date
Productivity
Category
4+
Age Rating
Age Rating
NDSU Nitrogen Calculator 螢幕截圖
About 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.
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.
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最新版本3.2更新日誌
Last updated on 2023年09月05日
歷史版本
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.
Errors in spring wheat/durum nitrogen calculator have been fixed.
Other minor errors have been fixed.
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Version History
3.2
2023年09月05日
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.
Errors in spring wheat/durum nitrogen calculator have been fixed.
Other minor errors have been fixed.
2.1.2
2022年12月12日
Some minor errors are fixed.
2.1.1
2022年11月27日
Some background color abnormal displaying issues have been revolved.
2.0
2022年11月23日
NDSU Nitrogen Calculator FAQ
點擊此處瞭解如何在受限國家或地區下載NDSU Nitrogen Calculator。
以下為NDSU Nitrogen Calculator的最低配置要求。
iPhone
Requires iOS 8.0 or later.
iPad
Requires iPadOS 8.0 or later.
iPod touch
Requires iOS 8.0 or later.
相關視頻
Latest introduction video of NDSU Nitrogen Calculator on iPhone