Effect of nutrients and bio-inoculants on growth, flowering behavior and yield of African marigold (Tagetes erecta L.) var. “Pusa Narangi Gainda”

An investigation was carried out at Department of Horticulture, R.B.S. College, Bichpuri, Agra(U.P.), to study the effect of nutrients and bio-inoculants on growth, flowering behaviour and yield of African marigold (Tagetes erecta) var. Pusa Narangi Gainda. The experiment was conducted with the four level of nutrients viz., F₀ (without nutrients), F₁ (200 kg N, 80 kg P and 80 kg K ha⁻¹), F₂ (150 kg N, 60 kg P and 80 kg K ha⁻¹), F₁ (100 kg N, 40 kg P and 80 kg K ha⁻¹). Maximum plant height, flower size and yield per plant were recorded in T₁ (200 kg N, 80 kg P and 80 kg K ha⁻¹). Three level of bio-inoculant viz., B₀ (without bioinoculant), B₁ (10 kg VAM ha⁻¹) and B₂ (2 kg phosphobacterine), B₁ (10 kg VAM ha⁻¹) recorded maximum secondary branches, size of flower and yield per plant (g). Interaction of higher levels of NPK and VAM (200: 80: 80 kg⁻¹ + 10 kg⁻¹ VAM).