A two year field experiment was conducted during Rabi seasons of 2015-16 and 2016-17 to study the response of organic sources of nutrients and weed management on productivity and weed dynamics of potato. Application of 100% organics (100% recommended N through different organic sources each equivalent to 1/3 of recommended N i.e. FYM+ vermicompost + non edible oil cake) + VAM recorded significantly higher plant height, tuber yield, soil organic carbon, available N, P and K and nutrient uptake which was statistically at par with 100% organics (100% recommended N through different organic sources each equivalent to 1/3 of recommended N i.e. FYM+ vermicompost + non edible oil cake) + marigold for potato on border as trap crop and 100% organics (100% recommended N through different organic sources each equivalent to 1/3 of recommended N i.e. FYM+ vermicompost + non edible oil cake). Whereas, the application of 50% recommended N through vermicompost + biofertilizers for N + rock phosphate to substitute the P requirement + PSB recorded higher net returns and B: C ratio. Amongst the weed management treatments, application of mustard seed meal @ 5 t/ha resulted in highest plant height, tuber yield and soil organic carbon which was statistically at par with application of rice bran @ 4 t/ha and weed free treatment. Significantly lowest weed density, dry weight and nutrient uptake by weeds was recorded with weed free treatment followed by the application of mustard seed meal @ 5 t/ha and rice bran @ 4 t/ha. Among the weed management treatments, highest weed control efficiency was recorded with the application of mustard seed meal @ 5 t/ha followed by rice bran @ 4 t/ha.