Effect of combination of plant nutrients on flowering and yield of marigold (tagetes erecta l.)

The present investigation was under taken during two consecutive years on periodical observations (30, 60 and 90 DAT) on vegetative growth at C.S. Azad University of Agriculture and Technology, Kanpur. Results indicated that all the growth parameters such as number of leaves, plant spread, diameter of plant stem, increased to the maximum upto the 75 % nitrogen level with or without biofertilizers. As regard the flowering characters there was a significant reduction in days taken to first flower bud initiation and days taken to first flower bud opening, under the combined application of biofertilizers (Azotobacter + PSB) along with 75 % nitrogen (T8) in both the years. While, Application of 100 % nitrogen along with biofertilizer inoculation delayed both the parameters. However, the maximum days were required under control (T14).