不断改进, 天天向上! 美国谷物协会网上比较网站已完成更新！数据录入更加方便, 计算公式更加准确统一。欢迎继续使用！USGC on-line farm performance benchmarking program has been upgraded successfully: simplified data input procedure, unified equation calculation, and more... Enjoy! 03-2007