Type of determinants

Factors

Physical

Radiation, Temperature, Rainfall, water supply (moisture stress), Soil conditions, Slope, Land availability.

Biological

Insect pests and natural enemies, Weed communities, Plant and animal diseases,

Soil biota, Background natural vegetation,  Photosynthetic efficiency, Cropping patterns, Crop rotation

Socioeconomic

Population density, Social organizations

(Economic (prices, markets, capital and credit availability), Technical assistance, Cultivation implements, Degree of commercialization, Labor availability

Cultural

Traditional knowledge, Beliefs, Ideology, General issues, Historical events