The field experiments were carried out at Ludhiana and Gurdaspur during Kharif 2017 to find out the influence of rice straw mulching and weed management treatments on weed density, weed dry matter and grain yield in maize. Use of rice straw mulch (PSM) at 9.00 and 6.25 t/ha recorded an average of 19.9 and 11.4% higher grain yield (5.91-6.21 and 5.46-5.81 t/ha), compared with no mulching (4.82-5.31 t/ha), respectively. The results showed that there was a reduction in average grain yield of 9.80 kg/ha with every increase in dry matter accumulation of weeds by 1.0 g/m2. Post-emergence application of tembotrione (0.088 and 0.110 kg/ha) proved to be more effective than the pre-emergence application of atrazine (0.8 and 1.0 kg/ha) for controlling different weed species in maize. Both the doses of tembotrione (0.088 and 0.110 kg/ha) in combination with rice straw mulch at 9.00 t/ha displayed significantly lower weed growth and higher grain yield of maize in comparison to other treatments. The results showed that tembotrione at 0.088 kg/ha (PoE) in combination with PSM at 9.00 t/ha can be applied in maize for getting higher productivity, as this combination helps to reduce 20% dose of herbicide.