title: Effect of Micronutrient Deficiencies on Nicotine Formation by Tobacco in Water-Culture.
authors.affiliation: FIELD CROPS RESEARCH BRANCH, AGRICULTURAL RESEARCH SERVICE, U. S. DEPT. OF AGRICULTURE, BELTSVILLE, MARYLAND.
authors.forename: R A
authors.initials: RA
authors.lastname: Steinberg
authors.forename: R N
authors.initials: RN
authors.lastname: Jeffrey