Efficacy of organic fertilizers to Kalingas purple corn

The study aimed to assess the growth and yield of purple corn to organic fertilizers. A field experiment was laid out following RCBD design in single factor and conducted at Agbannawag, Tabuk City, Kalinga. The treatments were designated as follows: T0 - No fertilizer (Check), T1 - 6kg Bio-synergy, T2 - 12kg vermicompost, and T3 - 3kg Bio-synergy + 6kg vermicompost. Purple corn produced tassel at 49 days, 53 days in silking, and matured at 87 days. It was observed that this cultivar changes its agronomic characteristics in a hot environment compared to its normal condition. Results of the field experiment showed that the application of 6kg bio-synergy + 12kg vermicompost revealed a highly significant number of kernel/ears of ±267.35 and ±253.56, respectively. In terms of plant height at the milk stage, the combined application of 6kg bio-synergy and vermicompost showed a significant result with a mean of ±216.51cm compared to other treatments. The combined application of 6kg of bio-synergy and vermicompost highly influenced the weight of 1000 kernel with ±283.33 g, and ±7.94kg for the biomass. No significant results found in the days to silking, tasseling, maturity, and ear height of the purple corn. Moreover, the combined application of the two organic fertilizers produced highly significant results of ±4.96 tons/ha compared to a single application of organic fertilizers. This has proven that combining the application of two organic fertilizers significantly affects the yielding character of Kalinga's purple corn.