Browsing by Author "Ritonga, Josh Dowel C."

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    Pertumbuhan dan Produksi selada (Lactuca sativa) Pada Tanah Inceptisol Dengan Aplikasi Abu Cangkang Kelapa Sawit
    (2013-02-05) Ritonga, Josh Dowel C.; Anom,Edison; Armaini
    Shells gray palm oil as an ingredient ameliorant potential on the ground because it contains nutrients that plants need. The study aims to get a dose of oil palm ash shell that can improve plant growth and production of lettuce (Lactuca sativa). Research using completely randomized design (CRD), which consists of 5 treatments: 1) Without giving palm ash shell, 2) The oil palm shell ash 0.2 kg / plot, 3) The ashes of palm shell 0.4 kg / plot, 4) The oil palm shell ash 0.6 kg / plot, and 5) The oil palm shell ash 0.8 kg / plot. Each treatment was repeated 3 times to obtain 18 units of the experiment. The data obtained were analyzed statistically using Analysis Of varience (ANOVA) and tested further by using DNMRT test (Duncan's New Multiple Range Test) at the level of 5%. The results showed that administration of oil palm ash shell at various doses of lettuce plants influence on the parameters of the number of leaves and fresh weight of lettuce plants. Shell gray palm oil at a dose of 0.6 kg / plot gives the highest production of lettuce plants.