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Kadar Hara Makro Daun Dan Pertumbuhan Tanaman Kelapa Sawit (Elaeis Guineensis Jacq.) Pada Tanah Dystrudepts Yang Diaplikasikan Mikoriza Arbuskula
Oil palm is a major plantation commodity in Indonesia. Riau is one of the provinces that has the largest oil palm distribution in Indonesia. Oil palm plantations in Riau are mostly cultivated on marginal lands, such as soils with sandy textures (Dystrudepts). Soils with sandy textures are a limiting factor for the growth and nutrient uptake of oil palm. So it is necessary to develop a technology package that can increase nutrient uptake and oil palm growth such as the application of Fungi Mycorrhizal Arbuscula (FMA). The purpose of this research is to study the effect of various doses of FMA on macronutrient levels in leaves, vegetative and generative growth of oil palm plants (Elaeis guineensis Jacq.) on Dystrudepts soil. This research is a field experiment where treatment placement is based on a completely randomized design (CRD). There were 4 levels tested with 5 repetitions of each composition, resulting in 20 experimental units and 1 oil palm plant in each experimental unit. The results showed that 12 months after FMA application can increase the weight of fresh fruit bunches compared to 6 months after FMA application. The results showed that FMA application did not produce significant differences in leaf nutrient levels, vegetative growth, and the number of male and female flowers 12 months after FMA application. Based on the research that has been carried out, for the best results of leaf nutrient levels, vegetative growth and generative growth in oil palm plants (Elaeis guineensis Jacq.) in the producing plant phase in Dystrudeps soil, it is recommended to apply FMA at a dose of 300 g per plant.
Keywords: Marginal lands, nutrient uptake, plantations, sandy textures
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