Growth Response of Cacao (Theobroma cacao L.) Clone Iccri 06 H to Various Doses of Humic Acid and NPK Fertilizer
DOI:
https://doi.org/10.35791/jat.v6i1.61948Keywords:
clone ICCRI 06 H, cocoa, humic acid , NPK fertilizerAbstract
This study seeks to assess the growth response of cocoa seedlings (Theobroma cacao L.) clone ICCRI 06 H to various concentrations of humic acid and NPK fertilizer. The study was carried out at the Agroecotechnology Laboratory, Faculty of Agriculture, Sultan Ageng Tirtayasa University, and the Integrated Agricultural System (Sitandu) in Banten Province, Curug District, Serang City, Banten. Two components were used in the study: NPK fertilizer (0, 5, 7, 5, and 10 g/plant) and humic acid (0, 10, 20, and 30 g/plant) using a Randomized Block Design (RBD). Observation parameters included plant height, stem diameter, number of leaves, leaf area, leaf chlorophyll index, fresh plant weight, and dry plant weight. The results showed that applying 20 g/plant of humic acid yielded the best results in increasing the number of leaves at 8 Weeks After Plant (WAP) and fresh plant weight at 12 WAP. Humic acid at 30 g/plant showed the highest effect on leaf chlorophyll index at 12 WAP. NPK fertilizer at 5 g/plant was most effective in increasing plant height at 4 WAP, leaf area, and fresh weight of plants at 12 WAP. Meanwhile, the 7.5 g/plant dose yielded the best results for nearly every growth parameter. Only at 4 WAP did a treatment of 10 g/plant result in an increase in plant height. On the dry weight of plants at 12 WAP, there was an interaction between the application of NPK fertilizer at 7.5 g/plant and humic acid treatment at 20 g/plant.
Keywords: clone ICCRI 06 H, cocoa, humic acid, NPK fertilizer
References
Ashari, A. M., Cucu S., and Anne N. 2017. Respons Pertumbuhan Tanaman Jarak Pagar (Jatropha curcas L.) Akibat Pemberian Asam Humat dan Fungi Mikoriza Arbuskula. Jurnal Agroekotek. Vol. 9(2): 148-158. http://dx.doi.org/10.33512/j.agrtek.v9i2.5113
Aurora, V. V. 2017. Pengaruh Dosis Pupuk Kotoran Sapi atau Asam Humat terhadap Pertumbuhan Tanaman Kakao (Theobroma cacao L.) Belum Menghasilkan. Thesis. Universitas Padjadjaran.
BPS [Badan Pusat Statistik]. 2023. Statistik Kakao Indonesia 2022. https://www.bps.go.id/id/publication/2023/11/30/ef4419ba62e6ec7d4490218e/statistik-kakao-indonesia-2022.html. Accessed August 28, 2024.
Elkas, B. D., Nurhidayah, T., and Nurbaiti, N. 2017. Pengaruh Pemberian Kompos Jerami Padi terhadap Pertumbuhan Bibit Tanaman Kakao (Theobroma cacao L.). Dissertation. Riau University.
Hermanto, D., Dharmayani, N. K. T., Kurnianingsih, R., and Kamali, S. R. 2013. Pengaruh Asam Humat Sebagai Pelengkap Pupuk Terhadap Ketersediaan dan Pengambilan Nutrien pada Tanaman Jagung di Lahan Kering Kec.Bayan-NTB. Jurnal Ilmu-ilmu Pertanian. Vol. 16(2): 28-41. https://doi.org/10.22146/ipas.2531
Khair, H., Hasyim, H., and Ardinata, R. 2017. Pengaruh Pemberian Pupuk Organik terhadap Pertumbuhan Beberapa Benih Asal Klon Kakao (Theobroma cacao L.) di Pembibitan. Jurnal Ilmu Pertanian. Vol. 17(3): 218-226. https://doi.org/10.30596/agrium.v17i1.255
Khaled, H., and H. A. Fawy. 2011. Effect of Different Levels of Humic Acids on The Nutrient Content, Plant Growth, and Soil Properties Under Conditions of Salinity. Soil & Water Res. Vol. 6(1): 21-29. https://doi.org/10.17221/4/2010-SWR
Nasrullah,. Nurhayati., and Ainun M. 2015. Pengaruh Dosis Pupuk NPK (16:16:16) dan Mikoriza terhadap Pertumbuhan Bibit Kakao (Theobroma cacao L.) pada Media Tumbuh Subsoil. Jurnal Agrium. Vol. 12(2): 56-64. https://doi.org/10.29103/agrium.v12i2.387
Nuraini, Y., and Zahro A. 2020. Pengaruh Aplikasi Asam Humat Dan Pupuk NPK Phonska 15-15-15 Terhadap Serapan Nitrogen dan Pertumbuhan Tanaman Padi serta Residu Nitrogen di Lahan Sawah. Jurnal Tanah dan Sumberdaya Lahan. Vol. 7(2): 195-200. https://doi.org/10.21776/ub.jtsl.2020.007.2.2
Pusat Penelitian Kopi dan Kakao Indonesia (Puslitkoka). 2008. Budidaya Kakao. ISBN: 9793702184. Agromedia Pustaka. Jakarta.
Sari, N. P., and Soetanto A. 2017. Effectiveness of Humic Acid Aplication on Growth of Coffee Seedings. Jurnal Pelita Perkebunan. Vol. 33(3): 188-194. https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v33i3.293
Santi, L. P. 2016. Pengaruh Asam Humat Terhadap Pertumbuhan Bibit Kakao (Theobroma Cacao L.) dan Populasi Mikroorganisme di Dalam Tanah Humic Dystrudept. Jurnal Tanah dan Iklim. Vol. 40(2): 87–94. https://doi.org/10.2017/jti.v40i2.5542
Sitio, Y., Gede W., and I. Gusti N. R. 2015. Pemanfaatan Tandan Kosong Kelapa Sawit dan Pupuk Nitrogen Sebagai Substitusi Top Soil terhadap Pertumbuhan Bibit Kelapa Sawit (Elaeis guineensis Jacq.) Periode Pre Nursery. E-Jurnal Agroekoteknologi Tropika. Vol. 4(4): 264-273. https://ojs.unud.ac.id/index.php/jat/article/view/18012
Susilo, A. W. 2013. Peran Petani dalam Pengembangan Klon-Klon Lokal di Sulawesi. Warta Pusat Penelitian Kopi dan Kakao Indonesia. Vol. 25(3): 1-6.
Suwardi, and Wijaya, H. 2013. Peningkatan Produksi Tanaman Pangan dengan Bahan Aktif Asam Humat dengan Zeolit sebagai Pembawa. Jurnal Ilmu Pertanian Indonesia. Vol. 18(2): 79-84. https://journal.ipb.ac.id/index.php/JIPI/article/view/8374
Taisa, R., Tioner P., Sakiah., Jajuk H., Abdus S. J., Halimatus S. H. J., and Refa F. 2021. Ilmu Kesuburan Tanah dan Pemupukan. ISBN: 978-623-342-165-2. Yayasan Kita Menulis. Medan.
Tikhonov, V. V., A. V. Yakushev., Y. A. Zavgorodnyaya., B. A. Byzov., and V. V Demin. 2010. Effect of Humic Acid on the Growth of Bacteria. Journal Soil Biology. Vol. 43(3): 305-313. https://doi.org/10.1134/S1064229310030087
Tyasmoro, S. Y., Permanasari, P. N., and Saitama, A. 2021. Teknologi Produksi Tanaman Perkebunan. ISBN: 9786232962637. Universitas Brawijaya Press. Malang.
Widiana, S., A. Yunarti., E. T. Sofyan and D. S. Sara. 2020. Pengaruh Pupuk NPK Majemuk terhadap N-Total, Serapan N. dan Hasil Umbi Bawang Merah (Allium ascalonicium L.) pada Inceptisol Asal Jatinangor. Soilrens. Vol. 18(1): 50-56. https://doi.org/10.24198/soilrens.v18i1.29042
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