Construction of a sensor for continuously recording the change in height of plants in the field
By: Wendell C. Johnson and Ronald G. Davis
Contributors: Davis, Ronald G.; United States. Agricultural Research Service. Soil and Water Conservation Research Division
Series: U.S. Agricultural Research Service. ARS 41 -- 167; ARS 41 -- 167.
Publisher: U.S. Department of Agriculture, Agricultural Research Service
Published: 1970
Place of publication: Beltsville, M.D
Language: eng
Subjects: Growth (Plants); Regulation