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Abstract
Quantitative analysis in the integrated laboratory of Jombang District Agriculture Office has been done on two samples of organic fertilizer with phosphorus and potassium parameters, considering these two elements are macronutrients which have an important role in the growth and development of plants. Determination of phosphorus level has been done by ascorbic acid method using double beam UV-Visible spectrophotometer, while determination of potassium level has been done by flame photometric method. There are 2 samples code of organic fertilizer, 13/F/16 and 14/F/16. From the result of analysis, the phosphorus level as P2O5 in 13/F/16 sample is 0.275%, while in the 14/F/16 sample is 0.29%. The potassium level as K2O in 13/F/16 sample is 2.58%, while in the 14/F/16 sample is 2.67%. These results meet the requirements for compost quality standards based on SNI 19-7030-2004, because they exceed the minimum requirements, which are 0.10% for phosphorus level and 0.20% for potassium level.
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References
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- Anonim, 2004, SNI 19-7030-2004 tentang Spesifikasi Kompos, Badan Standardisasi Nasional, Jakarta.
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- Lambers H., F. S. Chapin, and T. L. Pon, 2008, Plant Physiological Ecology, Springer.
- Mardiansyah, A., 2010, Ekstraksi Bionutrien dari Tanaman MHR dan Aplikasinya pada Tanaman Kentang (Solanum tuberosum L.), Skripsi, Universitas Pendidikan Indonesia, Bandung.
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- Rahman, T., 2000, Nutrisi dan Energi Tumbuhan, Universitas Pendidikan Indonesia, Bandung.
- Subroto, 2009, Pupuk dan Cara Pemupukan, Rineka Cipta, Jakarta.
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References
Aditama, S., 2011, Pengaruh Berbagai Pupuk Daun terhadap Pertumbuhan Kangkung Darat, Skripsi, IPB, Bogor.
Anonim, 2004, SNI 19-7030-2004 tentang Spesifikasi Kompos, Badan Standardisasi Nasional, Jakarta.
Anonim, 2009, Permentan No. 28/Permentan/SR.130/5/2009 Tentang Pupuk Organik, Pupuk Hayati dan Pembenah Tanah, Sekretariat Jenderal Kementerian Pertanian, Jakarta.
Association of Official Agriculture Chemists, 2002, Official Metods of Analysis of AOAC International, Vol. 1, in Horwitz, W. (Ed.), Agricultural Chemicals, Contaminants, Drugs, AOAC International, 17th ed., Maryland, USA,
Brady, N. C. and R. R Weil, 2002, The Nature and Propertiesof Soils, 13th Edition, Upper Saddle River, New Jersey USA.
Dwidjoseputro, D., 1980, Pengantar Fisiologi Tumbuhan, Gramedia, Jakarta.
Embleton, T.W., W.W. Jones, C.K. Lebanauskas, and W. Reuther, 1973, Leaf Analysis as a Diagnostic Tool and Guide to Fertilization, In W. Reather (Ed.), The Citrus Industry, Rev. Ed. Univ. Calif .Agr. Sci. Barkely, 3:183-210.
Engelstad, O.P., 1997, Teknologi dan Penggunaan Pupuk, Diterjemahkan oleh DH. Goenadi, Gadjah Mada University Press, Yogyakarta.
Lambers H., F. S. Chapin, and T. L. Pon, 2008, Plant Physiological Ecology, Springer.
Mardiansyah, A., 2010, Ekstraksi Bionutrien dari Tanaman MHR dan Aplikasinya pada Tanaman Kentang (Solanum tuberosum L.), Skripsi, Universitas Pendidikan Indonesia, Bandung.
Parman, S., 2007, Pengaruh Pemberian Pupuk Organik Cair terhadap Pertumbuhan dan Produksi Kentang (Solanum tuberosum L.), Buletin Anatomi dan Fisiologi, Vol. 15, No. 2, 21-31.
Rahman, T., 2000, Nutrisi dan Energi Tumbuhan, Universitas Pendidikan Indonesia, Bandung.
Subroto, 2009, Pupuk dan Cara Pemupukan, Rineka Cipta, Jakarta.
Sumekto, R., 2006, Pupuk-Pupuk Organik, PT. Intan Sejati, Klaten.
Sutedjo, M. M., 2008, Pupuk dan Cara Pemupukan, Rineka Cipta, Jakarta .
Walinga, I., 1995, Plant Analysis Procedures, Waganingen Agricultural University, Netherland.