List of production problems

Climatic Factors and Soil Conditions
Soil effects Acid and alkaline soils
Saline soils
Sunlight effects Sunlight effects
Temperature effects High temperature
Low temperature (frost)
Management factors
Crop canopy Control of tillers and spikes
Green leaves after heading

Crop establishment

Crop stands. Why poor?
Planting depth and method
Sowing time
Seed rate
Seed viability
Crop nutrition Mineral nutrition
Crop residues Residue management
Crop lodging Lodging
Tillage Land preparation
Tillage systems
Water Moisture stress
Weeds Weeds
Biotic factors
Insects Above ground insects
Soil pests
Stored grain insects
Diseases General
Leaf diseases
Root diseases
In storage
Other pests Rodents and birds