價格：免費
更新日期：2017-06-12
檔案大小：332.7 MB
目前版本：4.1
版本需求：需要 iOS 7.1 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
The ROSI® (Return on Sulfur Investment) calculator is a handy tool that calculates the estimated return a grower could receive by incorporating sulfur into their fertility program each season. Backed by research from The Sulfur Institute and International Plant Nutrition Institute, the ROSI® calculator gives users the flexibility to change many different key market variables by crop and region, such as crop value, nitrogen source price, ammonium sulfate price, and sulfur application rate.
支援平台：iPhone, iPad