Abstract
The research aims to determine the effects of Zeolites and Urea fertilizer on the production of maize. It was expected that the results of this study could reduce the use of urea fertilizer in producing corn, so that in the buildup to being more efficient and effective, it could also maintain productive soil conditions. The study was conducted from June-December 2017 in Gurusinga Village, Berastagi District, Karo Regency, North Sumatra, Indonesia, in the elevation of 1,250 meters above sea level, flat topography, andosol soil type (pH of 5.7). The experimental design was a factorial randomized block design. The first factor 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. The second factor was Urea fertilizer (U) 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 Zeolite and Urea fertilizer had a significant effect on the growth of corn plants (p <0.05) on plant height (cm), stem diameter (mm), and leaf wide (cm2), while the number of leaves (strands) had no significant effect (p> 0.05). Zeolite and Urea fertilizer have a significant effect on the diameter of corncobs, length of corncobs, weight (gross and clean) per (sample and plot) and weight of 100 pieces (p <0.05), while the number of rows/cob has no significant effect (p> 0.05).
Highlights
Food crops have a crucial role as meeting domestic food, feed, and industrial needs, which tend to increase each year in line with population growth and the development of the food and feed industry so that in terms of National Food Security, the function becomes very important and strategic
The research aims to determine the effects of Zeolites and Urea fertilizer on the production of maize
The results showed that the Zeolite and Urea fertilizer had a significant effect on the growth of corn plants (p 0.05)
Summary
Food crops have a crucial role as meeting domestic food, feed, and industrial needs, which tend to increase each year in line with population growth and the development of the food and feed industry so that in terms of National Food Security, the function becomes very important and strategic. Indonesia's population in 2010-2035 is projected to 252.164.800 people, and the total of corn required for direct consumption is 416,071 tons per year (Bappenas 2014). Corn commodity has a very strategic utility, both in the food security system and its role as the driving wheel of the national economy. Corn was classified as a C4 plant it is very efficient in utilizing sunlight. The dramatic and characteristic response of maize to the deficiency or poisoning of important nutrients makes it a preferred fertilizer physiological experiment plant
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