2023, Vol. 8, Special Issue 6

Sweet potato [Ipomoea batatas (L.) Lam] is a dicotyledonous, major tuber crops belongs to the family Convolvulaceae. It has the highest rate of dry matter production per day and is major calorie contributors. Sweet potato find an important place in the dietary habits of small and marginal farmers especially in the food security of tribal population. Sweet potato cultivated round the year for its tuber. Region wise cultivation practices differed and nutrient input has direct impact on tuber yield. So, integrated nutrient supply, usage or managing systems (INM) encompasses effective and prudent supply, usage or supervision of all the major elements of plant nutrient resources: chemical fertilizers in concurrence with animal manures, compost, green manures, legumes in cropping system, bio-fertilizers, crop residues, or recyclable waste and other locally available nutrient resources for nurturing soil fertility, health and production. The integrated supply and usage of plant nutrients from chemical fertilizers and organic manures has been demonstrated to generate higher crop yields than when each one is applied unaccompanied. Several studies revealed that INM enriches crop yields compared with conventional practices, improves water-use efficiency, and the economic returns to farmers.