PENGARUH PEMBERIAN KOMBINASI PUPUK MAJEMUK NPK (25:7:7) DAN NPK KEMASAN (10:55:10) TERHADAP PERTUMBUHAN VEGETATIF TANAMAN KAMBOJA JEPANG (ADENIUM OBESUM)
Keywords: fertilizer of NPK, Japanese frangipani, vegetative growth
Abstract
The objectives of this research were (i) to identify the effects of combination of compound fertilizers of NPK (25:7:7) and package NPK (10:55:10) on vegetative growth Adenium obesum in stead of Japanese frangipani plant, and (ii) to obtain the best combination of dose of NPK (25:7:7) and package NPK (10:55:10) in order to improve plant vegetative growth of Adenium obesum. This experiment was conducted in employed completely random design with factorial pattern of 4 and three times repetition. Factor I, the dose of NPK (25:7:7) fertilizer in 4 levels of dose : 0.0 g/L; 0.5 g/L; 1.0 g/L; and 1.5 g/L. Meanwhile, Factor II, the dose of package NPK (10:55:10) was applied with 4 levels of dose : 0.0 g/L; 0.5 g/L; 1.0 g/L; and 1.5 g/L. The data obtained were analyzed using variance analysis (ANOVA) technique to identify the influence of the treatment towards variables measured and mean separation was evaluated using DMRT with 5% level of difference. The results show that the use of combination of compound fertilizers NPK (25:7:7) and package NPK (10:55:10) improves plant vegetative growth of Adenium obesum. However, the use of combination of NPK 0.0 g/L and package NPK 0.5 g/L shows unsatisafactory results. The combination of NPK 1.5 g/L and package NPK 1.5 g/L provides the best result in improving plant vegetative growth of Adenium obesum.
Downloads
References
Ginting, B. , Prasetio, W., & Sutater, T. (2001). Pengaruh cara pemberian, air, media, dan pemupukan terhadap pertumbuhan Anggrek Dendrobium. J.Hort. 11 (1), 22-29.
Haryadi, S. S. (1996). Pengantar agronomi. Jakarta : PT Gramedia. 197 hal.
Hew, C. S.& Young, J. W. H. (1997). The Physiology of tropical orchids in relation to the industry. World Scientific.
Mardjuki, A. (1994). Pertanian dan masalahnya. (2nded). Yogyakarta: Penerbit Andi Offset.
Palin, M. (2008). Uji efektifitas kombinasi pupuk berimbang dengan pupuk berkadar P tinggi untuk memacu pertumbuhan dan pembungaan Adenium. Bogor: Fakultas Pertanian, IPB.
Parker, R. (2004). Introduction to Plant Science. United States. America.
Puspitasari, D.T. (2006). Pengaruh perlakuan pemupukan terhadap pertumbuhan vegetatif dan generatif tanaman Anggrek Dendrobium. Bogor: Fakultas Pertanian, IPB.
Sarief, E.S (1986). Kesuburan dan pemupukan tanah pertanian. Bandung: Pustaka Buana.
Setyamidjaja, D. (1986). Pupuk dan pemupukan. (1sted). Jakarta: CV Simplex.
Untung, O. (2006). Adenium. Trubus info kit. Jakarta: Trubus Swadaya.
Widiastoety, D. & Santi, A. (1997). Pembibitan dan budidaya anggrek. Jakarta: Balai Penelitian Tanaman Hias.
Wilfret. (1980). Gladiolus. In R.E. Larson (Ed). Introduction to floriculture. New York: Acad. Press.