Abstract
The aim of research to determine the effect of compost main pod husks and dolomite as well as their interaction on the growth of cocoa seedlings in media ultisol. Research conducted at the Experimental Farm, Faculty of Agriculture, University of Riau from November 2015 until February 2016. Research in the form of factorial experiment using completely randomized design (CRD). The first factor pod husks compost comprises four levels (0, 75, 100 and 125 g / polybag) and the second factor dolomite consists of three levels (0, 10, and 20 g / polybag), each combination treatment was repeated 3 times. Parameters measured were plant height, leaf number, stem diameter, and leaf area. Each parameter the observed data were statistically analyzed using analysis of variance and test of Duncan's New Multiple Range Test (DNMRT) at 5% level. The results showed the effect of compost pod husks dose of 125 g / polybag significantly increased plant height, stem diameter, number of leaves and leaf area while dolomite dose of 20 g / polybag no real effect except leaf area compared with no treatment. Interaction pod husks compost dose of 100 g / polybag and dolomite dose of 20 g / polybag increase stem diameter, number of leaves and leaf area significantly compared without compost pod husks and dolomite but less tangible than other combinations.
Highlights
Kakao (Theobroma cacao L.) merupakan salah satu jenis tanaman perkebunan yang berperan penting dalam perekonomian Indonesia yang terus mendapat perhatian untuk dikembangkan
The results showed the effect of compost pod husks dose of 125 g / polybag significantly increased plant height, stem diameter, number of leaves and leaf area while dolomite dose of 20 g / polybag no real effect except leaf area compared with no treatment
Respon Pertumbuhan Bibit Kelapa Sawit (Elais guinensis jacq) Terhadap Pemberian Dolomiit
Summary
Penelitian dilaksanakan di kebun percobaan pada polybag Fakultas Pertanian, Universitas Riau, Pekanbaru. Bahan yang digunakan adalah top soil ultisol, benih kakao varietas Trinitario yang berasal dari PT. Inang Sari Lubuk Basung, Agam, Sumatera Barat, kompos kulit buah kakao, dolomit, pupuk majemuk NPK (15:15:15), polybag ukuran 25 cm x 30 cm, Bioaktifator EM-4, Matador 25-EC dan Dithane M-45. Faktor pertama kompos kulit buah kakao terdiri 4 taraf (0, 75, 100 dan 125 g/polybag ) dan faktor kedua dolomit terdiri dari 3 taraf (0, 10, dan 20 g/polybag), masing-masing kombinasi perlakuan diulang 3 kali. Parameter yang diamati adalah tinggi tanaman, jumlah daun, diameter batang, dan luas daun. Data hasil pengamatan tiap parameter dianalisis secara statistik menggunakan analisis ragam dan uji lanjut Duncan’s New Multiple Range Test (DNMRT) pada taraf 5 %
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