productiveness

The temperature at which the greatest productiveness is obtained varies from a minimum of 60° Fahrenheit to a maximum of 90°.

The grains seem to show a gradual improvement in productiveness from the very oldest settlements to those of the Bronze period.

Expressed in financial terms, all duties were imposed “for revenue only,” and estimated in reference to their productiveness.

The reaction of ill-chosen taxes on industry is a hindrance to their productiveness and their growth.

He has closely studied scientific methods of wheat raising, whereby he has greatly enhanced the productiveness of his fields.