找到这个网页，让我替你算算

https://www.motherearthnews.com/real-food/growing-wheat-zmaz10fmzraw

“

 On a somewhat smaller scale, even if you have a front yard that’s 20 feet by 50 feet, you could plant 6 pounds of wheat and harvest nearly 50 pounds of grain.

”

在一千平方尺地六磅种子收获五十磅的小麦。一磅差不多就是一斤。

一亩地约四万平方尺。40 X 50 = 2000 磅。

以撒得到一百倍的收获。6 X 100 = 600. 40 X 600 = 24000. 这不是两万四千磅一亩地吗？比亩产万斤还厉害。