Hunger signs in crops : a symposium / prepared by S. A. Barber ...[et al.].
Hunger signs in crops : a symposium / prepared by S. A. Barber ...[et al.].
- 3rd ed.
- New York : David McKay, 1964.
- 461 p.(97 p. of plates) : ill. some col.
Deficiency diseases in plants.
Plants--Nutrition
Deficiency diseases in plants.
Plants--Nutrition