RESPONS PERTUMBUHAN BIBIT KAKAO TERHADAP VERMIKOMPOS DAN PUPUK P

Onny Suriyono Silaen Onny Suriyono Silaen Onny Suriyono Silaen, Ferry Ezra Sitepu, Balonggu Siagian

Abstract


Response of Cacao (Theobroma cacao L.) Seedlings Growth on Application of Vermicompost and
P Fertilizer. The research was conducted to determine response of cacao seedlings growth on
application of vermicompost and P fertilizer. The research carried out at Faculty of Agriculture
USU’s Experiment Land with a height of 25 metre above sea level on August until November 2012
by using Randomized Block Design of two factors which is the first factors were vermicompost
(0%, 25%, 50%, 75%) and the second factor were P fertilizer (0, 2, 4, 6 g/plant). The parameters
observed were seedling height, leaf number, stem diameter, total of leaf area, seedling wet weight,
seedling dry weight, root wet weight, root dry weight and shoot root ratio. The results showed that
vermicompost has significant effects on seedling height, leaf number and seedling dry weight. The
application of P fertilizer and interaction of them had no significant effects on all parameters
observed.
Key words : vermicompost, phosphat, cacao

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Program studi Agroteknologi

Fakultas Pertanian

Jl. Prof. A. Sofyan no. 3

Kampus Universitas Sumatera Utara

Padang Bulan- 20155

Medan-Sumatera Utara

E ISSN (2337-6597)