Response of Varied Levels of Phosphorus on Growth and Yield Performance of Sweet Corn, Zea mays L.

A field experiment was conducted during Kharif season 2019 at Zonal Agricultural Research Station, GKVK, University of Agricultural Sciences, Bengaluru. The soil of the experimental site was red loamy sandy in nature having medium nitrogen, low phosphorus and high potassium content,andwas slightly acidic in nature. The treatment consisted of 5 levels of phosphorus viz. T₁ (50%Recommended Dose of Fertilizer (RDF) P₂O₅), T₂ (75% RDF P₂O₅), T₃ (100% RDF P₂O₅), T₄ (125% RDF P₂O₅) and T₅ (150% RDF P₂O₅) in the presence of static dose of nitrogen and potassium. There were 5 treatments each replicated four times. The experiment was laid out in randomized complete block design. The result showed that application of 150% RDF of P₂O₅ recorded significantly higher growth attributes viz., plant height (T₅: 128.125 cm) and the number of leaves per plant (T₅: 11.1 at 60 Days after Sowing(DAS)). However, the application of 100% RDF of P₂O₅ treatment recorded a significantly higher seed yield (T₃: 296.25g).