Maize has high production potential when compared to any other cereal crop. The productivity of maize is largely dependent on its nutrient management. The crop has high genetic yield potential hence; it is called miracle crop and Queen of cereals . In Andhra Pradesh, though maize is predominantly grown in kharif, irrigated maize is gaining popularity in view of higher productivity. Maize (Zea mays L.) is a heavy feeder of nutrients. Soil test based fertilizer application is still a rare practice in this area. Hence, there is a wide variation in fertilizer application by farmers. This leads...