Effect of nitrogen and phosphorus on quality parameter and uptake of NPK by African marigold

This research was conducted to investigate the Effect of nitrogen and phosphorus on quality parameter and uptake of NPK by African marigold, during ‘Kharif’ season 2019-2020 at Horticulture Section, College of Agriculture, Nagpur. The fertilizers applied as per the treatments to evaluate the quality parameters and uptake of nitrogen, phosphorus and potassium by African marigold flower and plant. The experiment was laid out in factorial randomized block design with sixteen treatment with replicate thrice. The treatments comprised of four levels of nitrogen viz. N1 -0 kg ha-1, N2 -80 kg ha-1, N3 -100 kg ha-1, N4 -120 kg ha-1 and four levels of phosphorus viz. P1 -0 kg ha-1, P2- 40 kg ha-1, P3 -50 kg ha-1, P4-60 kg ha-1. The maximum test weight and germination% were significantly found superior with the treatment combination of N3P3 (100 kg N ha-1 with 50 kg P ha-1). In respect of uptake of NPK by African marigold flower and plant increased with individual application of N3 (100 kg N ha-1) and P3 (50 kg P ha-1) and also improved significantly with the combined application of N3P3 (100 kg N ha-1 with 50 kg P ha-1).