Efek Kombinasi Pupuk Fosfat dan Bakteri Pelarut Fosfat terhadap Indeks Pertumbuhan Fisiologi Lima Varietas Ubi Jalar [Ipomoea batatas (L.) Lam]
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Abstract
Physiological growth index is the representation of plant response to environmental factors. The application of phosphate fertilizers (P2O5) and phosphate solubilizing bacteria (PSB) are environmental factors that can be controlled to optimize plant growth. The effect P2O5 and PSB to sweet potato physiological growth indices has been investigated in the experimental field of the Faculty of Agriculture, Padjadjaran University in June 2014 to October 2014.The trial was designed as 5 x 4 factorial experiments in the randomized complete block and laid out in split-plots arrangements with two replications. The main plots were five sweetpotato varieties (Awachy 1, Awachy 2, Awachy 4, Awachy 5, and Kuningan Putih), while four combination P2O5 + PSB fertilizer levels (36 kg/ha P2O5 without PSB (BP0), 36 kg/ha P2O5 + PSB (BP1), 27 kg/ha P2O5 + PSB (BP2) dan 18 kg/ha P2O5 + PSB (BP3) constituted the sub-plots. The experimental results showed there were variation in crop dry weight (CDW), leaf area index (LAI), net assimilation rate (NAR) and crop growth rate (CGR) caused by a varieties factors. Variety Awachy 5 have the largest physiological growth indices. The application of 18 kg/ha P 2O5 + BPF (BP3) combination increase CDW, LAI, NAR and CGR on sweet potato varieties.
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References
Anggraeni, Y.P., S.S. Yuwono. 2014. Pengaruh fermentasi alami pada chips ubi jalar (Ipomoea batatas) terhadap sifat fisik tepung ubi jalar terfermentasi. Jurnal Pangan dan Agroindustri. 2(2): 59-69. P
Awad, E.I.M.M., A.M. EI-Ghamry. 2007. Effect of humic acid effective microorganisms (EM) and magnesium on potato in clayey soil. J. Agric. Sci.. 32(9): 7629-7639.NR
Bavec, M., K. Vukovic, S. Grobelnik Mlakar, C. Rozman, F. Bavec. 2007. Leaf area index
in winter wheat: response on seed rate and nitrogen application by different varieties. J.
Cent. Eur. Agric. 8(3): 337-342.NR
Chen, Y.P., P.D. Rekha, A.B. Arunshen, W.A. Lai,C.C. Young. 2006. Phosphate solubilizing bacteria from subtropical soil and their tricalcium phosphate solubilizing abilities. Appl. Soil Ecol.34:33-41.P
Fitriatin, B. M., A. Yuniarti., O. Mulyani., F. S.Fauziah., dan M. D. Tiara. 2009. Pengarih
mikroba pelarut fosfat dan pupuk p terhadap p tersedia, aktivitas fosfatase, P tanaman dan hasil padi gogo pada ultisol. Jurnal Agrikultura 20(3):210-215.
Fitriatin, B. N., A. Yuniarti., T. Turmuktini., dan F.K. Ruswandi. 2014. The effect of phosphate solubilizing microbe producing growth regulators on soil phosphate, growth and yield of maize and fertilizer efficiency on ultisol. eurasian j. of soil sci. Indonesia. Hal:101-107.
Hameda, El Sayed., S. El Dean, S. Ezzat,A.H.A.El Morsy. 2011. Responses of productivity and quality of sweet potato to phosphorus fertilizer rates and application methods of the humic acid. International Research Journal of Agricultural Science and Soil Science. 1(9). 383-393.NR
Hossain, M.M., M.S. Alam, N.M. Talukder, M.A. H. Chowdhury, A. Sarkar. 2008.Effect of phosphate solubilizing bacteria and different phosphatic fertilizers on nutrient content of rice. J. Agrofor. Environ. 2(1): 1-6.NR
Indriani, Mansyur, I.Susilawati, dan R.Z. Islami. 2011. Peningkatan produktivitas tanaman pakan melalui pemberian fungi mikoriza arbuskular (FMA). Pastura Vol. 1 Hal. 27-30.
Ivanova, R., Bojinova, D., Nedialkova, K. 2006. Rock Phosphate Solubilization by Soil Bacteria. Journal of the University of Chemical Technology and Metallurgy, 41, 3, 297-302.P
Kastono, D.H., Sawitri, Siswandono. 2005. Pengaruh nomor ruas setek dan dosis pupuk urea terhadap pertumbuhan dan hasil kumis kucing. Jurnal Ilmu Pertanian. 12(1): 56-64.NR
Koesrini dan E. William. 2009. Pengaruh bahan ameliorant terhadap pertumbuhan dan hasil tiga varietas buncis di atas sistem surjan pada lahan sulfat masam potensial. J. Agrom. Indonesia. Vol. 37 (1): 34-39.
Musfal. 2010. Potensi cendawan mikoriza arbuskula untuk meningkatkan hasil tanaman jagung. Jurnal Agrista Vol. 16. Hal; 154-158.
Nedunchezhiyan, M., B. Gangadharan,K.J. Susantha. 2012. Sweet Potato Agronomy. Fruit, Vegetable and Cereal Science and Biotechnology. 6 (1):1-10.NR
Purnomo, R., A. Bahrum. 2015. Pengaruh macam dosis pupuk fospat terhadap hijau (Vigna radiate,L.)http://Repository.Upy.Ac.Id/119/1/Jurnal 20riko%20purnomo%20(11122100017). Pdf diakses tanggal 12/06/16
Puspitawati, M.D., Sugiyanta, Iswandi Anas. 2013. Pemanfaatan mikrob pelarut fosfat untuk mengurangi dosis pupuk p anorganik pada padi sawah. J. Agron. Indonesia 41 (3) : 188 – 195.NR
Rahmawaty Rahman, M. Anshar., Bahrudin. 2015. Aplikasi bakteri pelarut fosfat, bakteri penambat nitrogen dan mikoriza terhadap pertumbuhan tanaman cabai (Capsicum annum L.). J. Agrotekbis Vol. 3 (3) : 316 – 328.
Sandeep, C., S.N. Rashmi, V. Sharmila, R. Surekha, R. Tejaswini, C.K Suresh. 2011.
Growth response of Amaranthus gangeticus to Azotobacter chroococcum isolated from different agroclimatic zones of Karnataka. Journal of Phytology 3(7):29-34.NR
Saraswati, R., Simanungkalit, R. D. M., D. A. Suriandikarta, D. Setyorini dan W. Hartatik.
Pupuk Organik dan Anorganik. Balai Litbang Sumber Daya Lahan pertanian, Badan Penelitian dan Pengembangan Pertanian Bogor.P
Sarwadana, S.M., I.G.A. Gunadi. 2007. Potensi pengembangan bawang putih (Allium sativum L.) dataran rendah varietas lokal Sanur. Agritrop.26(1):19–23.NR
Sitompul, S.M dan Guritno. 1995. Analisis Pertumbuhan Tanaman. GMU Press. Yogyakarta. 412 p
Setiawati T.C., P.A. Mihardja. 2008. Identifikasi dan Kuantifikasi Metabolit Bakteri Pelarut Fosfat dan Pengaruhnya terhadap Aktivitas Rhizoctonia solani pada Tanaman Kedelai. J. Tanah Trop.13 (3): 233-240.NR
Sukmasari, M.D., J. Sauman, B. Waluyo, A. Karuniawan. 2015. Pengaruh pemberian
kombinasi pupuk fosfat dan bakteri pelarut fosfat terhadap pertumbuhan dan hasil ubi
jalar (ipomea batatas (L.). Disampaikan dalam Seminar Nasional dan Focus Group Discussion Agroteknologi UNPAD Jatinangor.
Sumardi, K., M. Kasim, Auzar Syarif dan Nazres Akhir. 2007. Respon padi sawah pada teknik budidaya secara aerobic dan pemberian bahan organic. Jurnal Akta Agrosia 10: 65-71.NR
Suwardjono. 2003. Pengaruh beberapa jenis pupuk kandang terhadap pertumbuhan dan produksi kacang tanah. Jurnal Matematika, Sain Teknologi. 2(2):11-18.NR
Taiwo, L. B., M. Ogundiya. 2008. Microbial Solubilization of Ogun Rock Phosphate in
Thelaboratory and in Soil. African Journal of Microbiology Research Vol.(2) pp. 308-312. P
Tamad., Azwar Ma’as, Bostang Radjagukguk, Eko Hanudin, Jaka Widada. 2013. Ketersediaan fosfor pada tanah andisol untuk jagung (Zea mays L.) oleh inokulum bakteri pelarut fosfat. J. Agron. Indonesia 41 (2) : 112 – 117.NR
Trisnawati, W., M.R., Yasa, Nyoman Adijaya. 2006. Adaptasi tiga varietas ubi jalar (Ipomea batatas L.) keragaan komposisi kimia dan referensi panelis. Balai Pengkajian Teknologi Pertanian Bali. 4 Hal. P
Trisilawati, O.,M. Yusron. 2008. Pengaruh pemupukan P terhadap produksi dan serapan
P tanaman nilam (Pogostemon cablin Benth.). Balai P
Valverde, A., A. Burgos, T. Fiscella, R. Rivas, E. Velazquez, C. Rodriguez-Barrueco,
E.Cervantes, M. Chamber, J.M. Igual. 2006. Differential effects of co inoculations with
Pseudomonas jessenii PS06 (a phosphate solubilizing bacterium) and Mesorhizobium
ciceri c-2/2 strains on the growth and seed yield of chickpea under greenhouse and field
conditions. Plant Soil 287:43-50.NR
Vega, N. W. O. 2007. A review on beneficial effects of rhizosphere bacteria on soil nutrient availability and plant nutrient uptake. Revista Facultad Nacional de Agronomía - Medellín 60 (1): 3621-3643.
Verlinden G., B. Pycke, J. Mertens, F. Debersaques, K. Verheyen, G. Baert, J. Brifs, G. Haesaert. (2009). Application of humic substances results in consistent increases in crop yield and nutrient uptake. J. Plant Nutri. 32: 1407-1426.P
Watanabe, K., and T. Kodama. 1965. Studies on the effects of soil physical conditions on the growth and yield of crops plants 3 effects of the capacity and composition of soil air on the growth and yields of sweetpotato plants. Proc Crop. Sci. Soc. Japan. 33. No. 4. NR