Another factor is the yield per egg.

另一个因素是每只鸡蛋的产量。

youdao

But no matter how much we maximize crop yield per acre, the limiting factor for food production is land.

但是不管我们如何最大化粮食亩产量，最大的制约因素还是土地。

youdao

Light intensity during the reproductive period is the key environmental factor determining soybean yield.

生殖生长期间的光照强度是决定大豆产量的关键环境因素。

youdao

When we decompose factors explaining the returns we find that the dividend yield factor actually contributed negative 1.02% annualized to the excess return.

FORBES: The Mystery behind Dividend Yield Investing

Also, the average yield of DAX stocks is 3.5%, almost three times the yield on the 10-year German government benchmark bond, a factor that could persuade yield-hungry investors deterred by low returns on government bonds to switch from debt to equity.

WSJ: DAX Hits New High

The most important factor is that the yield on the 30-Year U.S. Treasury bond, which ended September at 2.913 versus 4.510 at the end of the first quarter and 4.377 at the end of the second quarter.

FORBES: Earnings Season Preview: Google, Alcoa And Two Others