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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Agrohorti Bulletin (e-Journal) Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia Buletin Kebun Raya Jurnal Sains Teh dan Kina Jurnal Jamu Indonesia Jurnal Sains Terapan : Wahana Informasi dan Alih Teknologi Pertanian
Adolf Pieter Lontoh, Adolf Pieter
Department Agronomy And Horticulture, Faculty Of Agriculture, Bogor Agricultural University Jl. Meranti, Kampus IPB Darmaga, Bogor 16168, Indonesia
Agriculture, Biological Sciences & Forestry Computer Science & IT Economics, Econometrics & Finance Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Veterinary Other

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Journal : Jurnal Jamu Indonesia

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NPK Levels and Application Methods on Productivity of Amorphophallus muelleri Blume in Intercropping System Edi Santosa; Anas Dinurrohman Susila; Adolf Pieter Lontoh; Yoko Mine; Nobuo Sugiyama
Jurnal Jamu Indonesia Vol. 1 No. 2 (2016): Jurnal Jamu Indonesia
Publisher : Pusat Studi Biofarmaka Tropika LPPM IPB; Tropical Biopharmaca Research Center - Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1100.514 KB) | DOI: 10.29244/jji.v1i2.12

Abstract

Underground corm of Amorphophallus muelleri Blume contained glucomannan, a raw material widely used in beverage, food and medicinal industries. In Indonesia, A. muelleri is grown under intercropping system, however, average corm production was considered low. The low productivity could be related to the low input of chemical fertilizers. Therefore, the effects of NPK fertilizers and methods of application on A. muelleri productivity were evaluated in the present study for intercropping system. Two experiments were conducted at Leuwikopo Experimental Farm, Bogor, Indonesia from 2010-2012 under canopy of coffee trees. First experiment was conducted using four levels of N, P, and K applications, i.e., N:P2O5:K2O at the rate 0:0:0, 100:60:80, 125:60:100 and 150:60:120 kg ha-1. In second experiment, N:P2O5:K2O fertilizers at the rate of 100:60:80 were applied by conventional (solid) and liquefied. Results of first experiment showed that application of N, P and K at rate of 100 kg, 60 kg, and 80 kg ha-1 produced fresh corm weight 636.3±91.7 g per plant or increased by 63% higher than control. However, higher rate of NPK application did not increase corm yield, possibly due to the occurrence of leaf discoloration. Higher rates of NPK also delayed harvest time 1 to 2 weeks compared with control and caused wide variation of corm size. Thus, excess application of NPK should be avoided for high productivity of A. muelleri. Second experiment showed that there was no significant different among methods of application on fresh corm weight, i.e., 413 g and 396 g from conventional and liquefied applications, respectively. These experiments conclude that application of NPK is important to enhance A. muelleri production in intercropping system.
Co-Authors Agung Jat Wibowo Arsa Ajeng Eka Prastiwi Anas Dinnurrohman Susila Anas Dinurrohman Susila Anggita Perdana Ani Kurniawati Ani Kurniawati Arisa Noguchi Durotun Nafisa Dwi Guntoro Edi Santosa Elly Kristiati Agustin, Elly Kristiati Gunar Widiyanto, Gunar Habib, Husein Herdiansah, Rian Heri Syahrian Husein Habib Ilham Kurniawan Ilham Kurniawan Ken Takahata Ken Takahata, Ken Khalida, Rahmi Lubis, Rio Elvandari M. Khais Prayoga Maryarti Sari Maryati Sari Muhamad Achmad Chozin Muhammad dan Heni Purnamawati Haryadi Danang Faqihhudin Nobuo Sugiyama Nobuo Sugiyama Nobuo Sugiyama Perdana, Anggita Prastiwi, Ajeng Eka Rahmi Khalida Rian Herdiansah Rio Elvandari Lubis Saputra, Yudha Vitria Puspitasari Rahadi Yoko Mine Yoko Mine Yudha Saputra