Principles of plant nutrition
MENGEL, Konrad
Principles of plant nutrition - Berne, Switzerland 1978 - 593p
PLANTS -- NUTRITION
PLANTS -- NUTRITION
SOILS 581.13 M54P
Principles of plant nutrition - Berne, Switzerland 1978 - 593p
PLANTS -- NUTRITION
PLANTS -- NUTRITION
SOILS 581.13 M54P