PENGARUH PEMBERIAN PUPUK UREA DAN BUBUK CANGKANG TELUR AYAM TERHADAP PERTUMBUHAN DAN PRODUKSI JAGUNG PULUT (Zea mays L.)

Abstract

This research was conducted in Allepolea Village, Lau District, Maros Regency, South Sulawesi Province. Aims to determine the effect of urea fertilizer and chicken egg shell powder and the interaction between the two on the growth and production of corn. The study was conducted using a factorial randomized block design (RAK). The first factor is urea fertilizer which consists of 2 levels, namely 150 kg/ha and 300 kg/ha urea. The second factor was powdered chicken eggshell which consisted of 3 levels, namely chicken eggshell powder 2,8 tons/ha, 4,8 tons/ha and 6,8 tons/ha. Each treatment combination was repeated 3 times so that 18 experimental units were obtained and each experimental unit contained 5 plant samples. Parameters observed in this study consisted of plant height, number of leaves, male flowering age 50%, female flowering age 50%, length of ear, diameter of ear, weight of seeds per ear, production of cobs per plot, weight of 100 seeds, weight of seeds per plot and production seeds per hectare. The results of this study showed that urea fertilizer dose of 300 kg/ha had a good effect on the number of leaves, length of the ear and weight of seeds per ear. Giving chicken egg shell powder at a dose of 6.8 tons/ha had a good effect on the number of leaves, 50% male flowering age and cob length. The interaction between urea fertilizer and chicken egg shell powder did not affect all of the observed parameters. The suggestion of this research is to use urea fertilizer at a dose of 300 kg/ha and chicken egg shell powder at a dose of 6,8 tons/ha in the cultivation of corn.