• Production (Field Crops + Livestock) •Available Land •Improved Crop Practices and Technology= Inter-Cropping, Seed Quality, nuclear and isotopic techniques, Smart Zoning, smart scouting, smart fertilizer application, Climate Smart Agriculture, , integrated pest management, smart crops, genetically modified plants ) •In Kenya , Mango Samples were taken and IPM were applied, the adoption of one, two, or three or more IPM practices provides yield gains of 6%, 27% and 95%, respectively. •Environmental and Geographical Factors •Water Sources=Surface Water, Groundwater, Rainwater, Furrow Irrigation, 0.1-0.3m wide) •Fertility( 45% mineral , 5% organic matter , 20-30% water , and 20-30% air by College of Tropical Agriculture and Human Resources, (Iron, Potassium, Magnesium, Calcium, Sulphur ), Soil Layers ). •Acc. to National Institute of Health , Malawian children have more selenium status on southern , calcareous soils, rich in selenium. FOOD AVAILABILITY