Mycorrhizal Symbioses With Jelutung (Dyera Lowii Hook) Under Increasing Phosphate Rock Levels In Peat Soil

Abstract

Study the mycorrhizal symbioses with Dyera lowii Hook (jelutung) under increasing phosphate rock levels in the peat soils was conducted in a greenhouse laboratory Universeitas Soil Science Faculty of Agriculture Gadjah Mada University for 5 months in 2010. Research purposes to determine the dosage of phosphate rock fertilizers that can enhance the growth of D.lowii seedlings inoculated with mycorrhizal fungi arbuskula. Nursery experiments using Completely Randomized Factorial Design with three replications. Observations made on D.lowii seedlings 14 weeks of age after weaning include: height, diameter, number of leaves, and to shoot dry weight, P uptake of plants after harvest. Trials testing dosage of phosphate rock fertilizers in D.lowii inoculated with mycorrhizal fungi arbuskula prove that phosphate rock fertilizer dosage of 100 ppm is the best enhance the growth of D.lowii seedlings in the nursery.