A field experiment was conducted to evaluate nitrogen and weed management practices in maize and their residual effect in groundnut during two consecutive rainy (Kharif) and winter (Rabi) seasons of 2019-20 and 2020-21 at Dryland Farm, S. V. Agricultural College, Tirupati, Andhra Pradesh, India. Among nitrogen (N) management practices, lower weed density and biomass were registered with control, whereas Green Seeker-directed N management (GSNM) recorded significantly higher kernel and stover yield in maize. Hand weeding twice at 15 and 30 days after sowing (DAS) significantly lowered the weed density and biomass and improved maize kernel and stover yield. This was closely followed by pre-emergence application (PE) of atrazine 1.0 kg/ha followed by (fb) post-emergence application (PoE) of topramezone 30 g/ha and atrazine 1.0 kg/ha PE fb tembotrione 120 g/ha PoE. Among all the treatment combinations, higher kernel and stover yield of maize was recorded with GSNM and hand weeding twice (15 and 30 DAS). Nitrogen management practices executed in preceding maize did not exert any significant influence on weed and growth parameters in succeeding groundnut. Lower weed density and biomass were recorded with hand weeding twice (15 and 30 DAS), which was at par with brown manuring, atrazine 1.0 kg/ha PE fb topramezone 30 g/ha or tembotrione 120 g/ha PoE.