Effect of bio-fertilizers and nutrients on growth, yield and economics of summer season African marigold (Tagetes erecta L.)

Abstract

A field experiment was carried out to study the effect of bio-fertilizers and nutrients on growth and flower yield of summer season African marigold (Tagetes erecta L.) at the Main Experiment Station, Department of Floriculture & Landscape, Narendra Deva University of Agriculture & Technology, Narendra Nagar (Kumarganj), Faizabad (U.P.) during summer season in the year 2016-2017. The experiment was conducted in Randomized Block Design with 11 treatments replicated thrice to assess the effect of bio-fertilizers and nutrients on growth and flower yield of African marigold. Results reveal that the application of bio-fertilizers and nutrients had left significant response on growth and yield of marigold. Azotobacter + PSB + 75% NPK have resulted maximum plant height (72.46), number of branches (26.60), number of flowers per plant (24.84), weight of flower (7.80 g) and yield of flower per plant and per hectare (178.55 g & 257.76 q) was recorded with the application of Azotobacter + PSB + 75% NPK. The maximum gross return (257760 per ha), net return (183534.81 per ha) and benefit cost ratio (2.47:1) was recorded maximum with same treatment i.e.T9 Azotobacter + PSB +75% NPK under Main Experiment Station area.