RESPONS PERTUMBUHAN BIBIT KAKAO (Theobroma cacao. L) TERHADAP PEMBERIAN KOMPOS BLOTONG DAN PUPUK NPKMg PADA MEDIA SUBSOIL ULTISOL

Agustua Sinabariba, Balonggu Siagian, Sanggam Silitonga

Abstract


This research aims to test the response of seedling growth of cocoa (Theobroma cacao L) against
NPKMg fertilizer (15: 15: 6: 4) and the filter cake compost on soil media subsoild Ultisol. This
research using randomized block design (RBD) factorial with 2 (two) treatment factors. The first
treatment is: Compost filter cake with 4 level: M0 = subsoil Ultisol + compost filter cake (5kg
+ 0 kg), M1 = subsoil Ultisol + compost filter cake (3.75 kg + 1.25 kg), M2 = subsoil Ultisol +
compost filter cake (2.5 kg + 2.5 kg) , M3 = subsoil Ultisol + compost filter cake (1.25 kg
+ 3.75 kg). The second factor, namely: Fertilizer dose NPKMg follows: P0 = 0 g / polybag,
P1 = 3 g / polybag, P2 = 6 g / polybag and P3 = 9 g / polybag. Parameters measured were
seedling height, stem diameter, number of leaves, total leaf area, canopy wet weight, dry weight
crown, root wet weight and dry weight of roots. The result showed that the treatment effect is not
real compost filter cake growth of cocoa seedlings. NPKMg fertilizer treatment significantly
influenced all parameters were observed, namely: plant height, stem diameter, number of leaves,
canopy wet weight, dry weight crown, root wet weight and dry weight of roots. Interaction
blotong compost and fertilizer NPKMg unreal effect on the growth of cocoa seedlings..
Keywords: cocoa seeds, compost and fertilizer blotong NPKMg

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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)