Subject(s): State Land Use -- Planning for sustainable land use, Sustainable or alternative agriculture, agriculture in India and Kerala, Scope for sustainable agriculture in Kerala -- General agricultural characteristics of Kerala state : Soil, climate, land use pattern, Water resource, Hydro-geology, Forest land resources, Agro-climatic zones -- South zone : Agriculture ecology of south zone, Physiography, Agricultural characteristics of agro-ecological situations -- Central zone : general characteristics, Soil, Irrigation, Major crops and cropping patterns, Agro-ecological situations , Water resources, -- North zone : General agricultural characteristics, Climate, Land use pattern, Socio-economic characteristics, Cropping pattern, Irrigation , Agro-ecological situations -- Special zone of problem areas : General agricultural characteristics, Soils-problem area zone, Climate,Land use pattern, Irrigation, land holding pattern and socio-economic characters, Major cropping patterns, Forest resource, Agro-ecological situations, General production constraints -- High altitude zone : General agricultural characteristics,Soil, Climate, Land use pattern, irrigation, Socio-economic characteristics, cropping patterns, Marketing, Research organisations, Agro-ecological situations, Constraints in Production -- Interpretation of data , Socil, climatic and environmental parameters , data base, methodology for estimation of GDP -- Rice, Other Cereals, Pulses, Coconut, Groundnut and sesamum, Spices, Fruits, Cassava and other tuber crops, Vegetables, Rubber, Coffee, Tea, Cashew