Refine your search
Availability
-
Authors
-
Holding libraries
-
Item types
-
Topics
- Ammonium sulphate
- Fertilizer applicati...
- Fertilizers
- Field experimentatio...
- Green manures
- Growth
- Microorganisms
- Nitrogen fertilizers
- Phosphate
- Phosphate fertilizer...
- Phosphorus
- Plant population
- Pot culture
- Rock phosphate
- Root nodulation
- Solubilization
- Tillering
- Wheat
- Wheats
- Yields
- Show more
- Show less