Effectiveness of Commercial Biofertilizer on Fertilization Efficiency in Ultisols for the Growth and Yield of Caisim

Ea Kosman Anwar, Subowo Gitosuwondo


The effectiveness of Commercial Biofertilizer 1 (CBF1) on the growth and yield of caisim (Brassica sp.) was examined in the greenhouse of Indonesian Soil Research Institute in Bogor. The completely randomized design (CRD) was performed to examine the effects of Commercial Biofertilizer 1 (CBF1) on Fertilization Efficiency in Ultisols. The treatments were consists of 10 combinations between NPK-recommendation (NPK-rec) and CBF1, with six replications. The experiment was conducted from August to October 2009. The result showed that CBF I increased the yields of caisim when combining by fertilizer NPK-rec, while giving CBF1 alone did not significantly increases yields compare to control (without fertilizer). Giving ¾ dosage NPK-rec. + CBF1 had RAE value 163%, indicating the effectiveness of  CBF1 was optimum, that it reduce the need of NPK fertilizer by 25% by providing the increasing of yield  63% compared to NPK rec. The higher the level of NPK-rec. the lower the efficiency of fertilization. CBF1 had given effectives on yields when it was combined by inorganic fertilizer. However, when it was not combined with inorganic fertilizers, it would harm plants and decreased the soil nutrients.  The influence of biofertilizer in plants were predictable unpredictable, while the influent of inorganic fertilizers were predictable.


Effectiveness of Biofertilizer; fertilization efficiency; Ultisols

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Abidin Z.1991.Dasar Pengetahuan Ilmu Tanaman. Penerbit Angkasa Bandung, p.77 (in Indonesian).

Chien SH. 1996. Evaluation of Gafsa (Tunisia) and Djebel Onk (algeria) phosphate rock for direct application. In: AE Johnston and JK Syers (eds). Nutrient Management for Sustainable Crop Production in Asia. Bali. Indonesia. 9-12 December 1996. pp.175-185.

El-Kholy MA, S El-Ashry and AM Gomaa. 2005. Biofertilization of Maize Crop and its Impact on Yield and Grains Nutrient Content under Low Rates of Mineral Fertilizers. J Appl Sci Res 1 (2): 117-121.

Gomez KA and AA Gomez. 1976. Statistical Procedures for Agricultural Research. The International Rice Reseach Institute. Los Banos. Laguna. Philippines.

Hardjowigeno S. 1987. Ilmu Tanah. Penerbit PT. Mediyatama Sarana Perkasa. Jakarta (in Indonesian).

Haryanto E. 1994. Sawi dan Selada. Penebar Swadaya. Jakarta, p.24 (in Indonesian).

Indonesian Ministry of Agriculture. 2009. Peraturan Menteri Pertanian No. 28/Permentan/SR.130 /5/2009, tentang Pupuk Organik. Pupuk Hayati dan Pembenah Tanah. Jakarta (in Indonesian).

Javaid A. 2011. Effects of biofertilizers combined with different soil amendments on potted rice plants. Chilean J Agric Res 71(1): 157-163.

Machay AD, JK Syers and PEH Gregg. 1984. Ability ofchemical extraction procedures to assess the agronomic effectiveness of phosphate rock material. New Zealand J Agric Res 27: 219-230.

Prijambada ID, J Widada, S Kabirun and D Widianto. 2009. Secretion of organic acid by phosphate solubilizing bacteria isolated from Oxisols. J Trop Soils 14 (3): 245-251.

Rukmana R. 1994. Bertanam Petsai dan Sawi. Penerbit Kanisius, pp. 11-13.

Saraswati R. RDM Simanungkalit and E Husen. 2006. Metode Analisis Biologi Tanah. Balai Besar Litbang Sumberdaya Lahan Pertanian Badan Penelitian dan Pengembangan Pertanian Departemen Pertanian (in Indonesian).

Sarno. 2009. Pengaruh kombinasi NPK dan pupuk kandang terhadap sifat tanah dan pertumbuhan serta produksi tanaman Caisim. 2009. J Trop Soils 14 (3): 211-219 (in Indonesian).

Soil Research Insitutute. 2007. Baku mutu dan metode pengujian pupuk hayati. Balitatanah. BB Litbang Sumberdaya Lahan Pertanian. Badan Litbang Pertanian. Deptan (in Indonesian).

Soil Research Insitutute. 2009 Analisis Kimia Tanah, Tanaman, Air dan Pupuk. Edisi 2. Badan Penelitian dan Pengembangan Pertanian Departemen Pertanian (in Indonesian).

Soil Survey Staff. 1987. Kriteria Pengelompokkan kelas beberapa sifat kimia fisika tanah. Pusat Penelitian dan Pengembangan Tanah dan Agroklimat (in Indonesian).

Whitelaw MA. 2000. Growth promotion of plants inoculated with phosphate-solubilizing fungi. Adv Agron 69: 99-15

DOI: http://dx.doi.org/10.5400/jts.2011.v16i3.191-199


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