Effects of Micronutrient Deficiencies on Mineral Composition, Nitrogen Fractions, Ascorbic Acid and Burn of Tobacco Grown to Flowering in Water Culture.
Steinberg
R A
RA
FIELD CROPS RESEARCH BRANCH, U. S. DEPARTMENT OF AGRICULTURE, BELTSVILLE, MARYLAND.
Specht
A W
AW
Roller
E M
EM