Physiological aspects of crop productivity : proceedings of the 15th Colloquium of the International Potash Institute held in Wageningen/The Netherlands, 1980.
- Worblaufen-Bern, Switzerland : International Potash Institute, 1980.
- 274 p. : ill.
Crops--Physiology
Crop yields
SB112.5 / .I58 1980
631/.015811�19
Crops--Physiology
Crop yields
SB112.5 / .I58 1980
631/.015811�19