Krishi Vigyan Kendra, Etawah
The two districts of Uttar Pradesh (UP) namely, Kannauj and Etawah were selected purposively for the present investigation. These are the main potato growing districts in UP. From each village, 25 potato growers were selected randomly. Eight important constraints responsible for the varying magnitude of gap were identified. The constraints aranged in descending order of severity (highest to lowest) were lack of knowledge, lack of technical help, lack of extension contact, high cost of resources, complexity of practices, non-availability of inputs and non-profitability of practices. Average technological gaps were observed for 16 practices of improved potato cultivation. The highest mean technological gap was found 100.00 per cent in case of true potato seed followed by intercropping, seed treatment, plant protection measures, intercultural operations, improved varieties, weed control, manure and fertilizers application, water management, seed rate, crop rotation, harvesting, method of sowing, time of sowing, time of manuring and fertilizers and selection of soil type and preparation.