Abstract
The growth of seedlings in the field in very determined by the growth of plants in the nursery. Planting media is the one factors that affect the growth of plants in the nursery. Therefore, by giving mikorizha and composition of the planting media is expected can increase the growth of oil palm nurseries in pre nursery. This research was conducted in screen house af Faculty Agricultural University of Sumatera Utara with altitude ± 25 meters from sea surface from April-July 2014, used randomized block design with two factors. The first factor is composition of planting media (sludge + ultisol) with four levels (0% + 100%) (S 0 ); (25% +75%) (S 1 ); (50% + 50%) (S ); (75% + 25%) (S 3 ) and the second factor is mikorizha with three levels 0 (M 0 ); 5 (M 1 2 ); 10 g/plant (M ). Parameter observed was plant height, stem diameter, number of leaves, total leaf area, leaf greenes, degree of infection, root volume, shoof dry weight root dry weight. The result of this research showed that use of planting media composition significantly effect to plant height parameters 6-12 weeks after planting, stem diameter 6-12 weeks after planting, number of leaves 6,7,8,10,11 weeks after planting, total leaf area, green leaf, degree of infection, root volume and plant dry weight. Mikorizha treatmen is significantly effect the degree of infection parameters. Interaction of compositition planting media and mikorizha significantly effect on plant height at 6 weeks after planting and degree infection. Keywords: mikorizha, sludge, ultisol, palm oil 2
Published Version
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