Effect of row spacing and nitrogen application on growth and yield of baby corn (Zea mays L.)

The present investigation entitled " Effect of row spacing and nitrogen application on growth and yield of baby corn (Zea mays L.). "Was conducted at crop research form of National Post Graduate college, Barhalganj, Gorakhpur, U. P. during rabi season of 2020 - 21 and 2021 - 22 with an object to study the effect of row spacing and nitrogen application on growth and yield of baby corn (Zea mays L.). The soil of the experimental filled was silty loom in texture with low, medium and high in N. P. and K., respectively. The experiment site is situated in sub-tropical zone in Indo - gangetic plains. The experiment was laid out in Randomize Black Design (Factorial) and sown on 5 February 2021 and 7 February 2022 with two factors viz - A - Row spacing i.e. R1 - 40 cm X 20 cm, R2 -50 cm X 20 cm and R3 - 60 cm X 20 cm and B - Nitrogen application i.e. N1- 50% RDN as basal + 50% RDN at knee high stage + 5 tonne FYM, N2- 50% RDN as basal + 50% RDN at tassel emergence (TE) + 5 tonne FYM N3 - 50% RDN as basal + 25% RDN at knee high stage + 25% RDN at tassel emergence (TE) + 5 tonne FYM and N4 - 25% RDN as basal + 50% at knee high stage + 25% RDN at tassel emergence + 5 tonne FYM with three replication. The baby corn was harvested 4 times just after silk emergence. The result indicated that the row spacing 50 cm X 20 cm proved significantly superior over other row spacing in terms of leaf area index, chlorophyll content and dry weight and yield parameters viz - numbers of baby cob's plant⁻¹, weight of baby corn, length of baby corn, yield of baby corn and yield of fodder, harvest index, gross return (Rs ha-1), net return ((Rs.ha-1) and B: C ratio. respectively, while nitrogen application N3 - 50% RDN as basal + 25% RDN at knee high stage + 25% RDN at tassel emergence (TE) + 5 tonne FYM gave significantly highest value in terms of plant height, leaf area index, chlorophyll content and dry weight and yield parameters viz - numbers of baby cob's plant⁻¹, weight of baby corn, length of baby corn, yield of baby corn and yield of fodder, harvest index, gross return (Rs ha), net return ((Rs ha) and B: C ratio. respectively over rest of the treatment. Row spacing 50 cm X 20 cm and nitrogen application 50% RDN as basal + 25% RDN at knee high stage + 25% RDN at tassel emergence (TE) + 5 tonne FYM increased significantly the growth parameters and yield of baby corn.