Effect of integrated nutrient management (INM) on growth, yield and nutrient uptake of maize (Zea mays L.)

A field experiment was conducted to evaluate the effect of integrated nutrient management (INM) on growth, yield and nutrient uptake in maize. Therefore, investigation was carried out at the Agronomy research farm, IFTM University, Uttar Pradesh, India during the kharif season of 2023. Twelve treatments comprising varying combinations of recommended doses of fertilizers with organic sources such as biogas slurry, vermicompost, farmyard manure, poultry manure, and green manuring with Sesbania spp. were evaluated replicated thrice in a randomized block design (RBD). Maize variety VHM-53 was planted with 50 × 20 cm spacing. Results revealed that different levels of nutrients and organic manures significantly improved the growth, yield attributes, yield and NPK uptake of maize. Highest grain yield was recorded with T9 (75 % RDF + 25 % N through Poultry manure) in which significantly increased all growth attributes viz., plant height, number of leaves, dry weight, leaf area index as well as on yield attributing such as number of cobs/plant, number of grains/cobs, seed index. Grain yield (5200 kg/ha) and NPK uptake was also highest in T9 which was significantly higher over rest of the treatments.