Respon Tanaman Jagung (Zea mays L.) Zeolit Sebagai Pembenah Tanah dan Pupuk Urea Terhadap Pertumbuhan dan Hasil di Dataran Tinggi Tanah Karo
Kata Kunci:
Zeolite, Urea,, Corn, Highlands, Land of KaroAbstrak
The research was carried out in the farmer's garden of Gurusinga Village, Berastagi District, Karo Regency, North Sumatra Indonesia, with an altitude of 1,350 meters above sea level, flat topography, andosol soil type, with a pH of 5.7. from June 2017 to Januari 2018. The aim of the study was to determine the effect of giving Zeolite to reduce the need for urea fertilizer on corn plant growth. The design used was a factorial randomized block design (RAK). Factor I was the dose of Zeolite (Z) consisting of Z0 = 0 g/plot (control), Z1 = 105 g/plot, Z2 = 210 g/plot, Z3 = 315 g/plot, Z4 = 420 g/plot, Factor to II is the use of Urea (U) fertilizer consisting of U0 = 0 g/plant (control), U1 = 2.1 g/plant, U2= 4.2 g/plant, U3 = 6.3 g/plant, U4 = 8.4 g/plant with 3 replications. The results showed that the use of Zeolite and Urea fertilizer had a significant effect on corn plant growth (p < 0.05) on plant height (cm), stem diameter (mm), and leaf area (cm2), while the number of leaves (strands) had no significant effect. significantly (p > 0.05), the application of Zeolite and Urea fertilizer had a significant effect on the diameter of the ear, length of the ear, weight (gross and net) for each (sample and plot) and weight of 100 seeds (p < 0.05), while on the number of rows/ cobs had no significant effect (p > 0.05).
