NALDC

Use of the exponential yield curve in fertilizer experiments

Author:

Spillman, W. J.

Source:

Technical bulletin (United States. Dept. of Agriculture) ; no. 348 1933

Year:

1933

Subject:

Fertilizers -- Mathematical models

Format:

67 p. : ill. ; 23 cm.

Publisher:

U.S. Dept. of Agriculture

Collection:

Organic Roots Collection