. Rusdy


An experiment was conducted at Kyushu University Experimental Field Japan, to evaluate the effect of nitrogen fertilization and cutting age on dry mater yield, reserve carbohydrate content and nitrogen utilization in alang-alang, bahia grass and guinea grass. The grasses species were fertilized with  0. 7 and 1.5 g N/pot and cut  at 50 and 70 days  after nitrogen fertilization. Results of the experiment showed that as nitrogen rates increased, dry matter yield, foliage (stubble + underground parts) ratio, nitrogen concentration and nitrogen uptake of the three species increased. Alang-alang allocated a greater proportion of dry matter to stubble and underground plant parts than to foliage compared to those of bahia grass and guinea grass. Nitrogen fertilization had no consistent effect on reserve carbohydrate content, apparent nitrogen recovery and nitrogen use efficiency. Cutting at 70 days increased dry matter yield and nitrogen uptake but reduced nitrogen concentration of the three grass species. As plant grew older, foliage (stubble + underground parts) ratio decreased in alang-alang but in bahia grass and guinea grass it increased. Alang-alang was less responsive to applied nitrogen in term of nitrogen uptake compared with those of bahia grass and guinea grass, however as the plants grew older, guinea grass showed the highest nitrogen use efficiency compared with those of alang-alang and bahia grass.

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AOAC. 1984. Official Methods of Analysis. 14th Ed. Association of Official Analytical Chemist. Washington, D.C., USA.

Crowder, L.V. and H. R. Chhedda. 1982. Tropical grassland Husbandry. Longman, London and New York.

Daneshgar, P. and S. Jose. 2009. Imperata cylindrica, an alien invasive grass maintains control over nitrogen availability in an establishing pine forest. Plant and Soil, 320: 209–218.

Falvey, L. 1981. Imperata cylindrica and animal nutrition in South East Asia: a review. Trop. Grassld., 15: 52–56.

Heggenstaller, A. E., K. J. Moore, M. Liebman and R. P. Anex. 2009. Nitrogen influence on biomass and nutrient partitioning by perennial warm season grasses. Agron. J., 101: 1363-1371.

Holmes, J. H. G., C. Lamere and J. H. Schottler. 1976. Imperata cylindrica for cattle production In Papua New Guinea. Workshop on alang-alang (Imperata cylindrica), July 27 – 29, Bogor Indonesia.

Humphreys, L. R. 1981. Environmental Adaptation of Tropical Pasture Plants. MacMillan Publishers.

Nurhasirah. 1996. Produksi Bahan Kering, Kadar Protein dan Efisiensi Penggunaan Pupuk dengan Berbagai Tingkat Pemupukan Nitrogen pada Beberapa Jenis Rumput. Skripsi. Fakultas Peternakan, Universitas Hasanuddin, Makassar.

Power, J. F. and J. A. Alessi. 1971. Nitrogen fertilization of semiarid grassland: plant growth And soil mineral N. Agron. J., 63: 276–280.

Ringwall, K., M. E. Biondin and C. Grygiel. 2000. Effects of nitrogen fertilization in leafy spurge root architecture. J. Range Management, 53: 228–232.

Sajise, P. E. 1973. Evaluation of cogon (Imperata cylindrica) as sereal stage in Philippine vegetational successions 1. The cogonal seral and succession. Dissertation Abstr. Cornell University, Itacha, New York.

Saxena, K. G. and P. S. Ramakriskhnan. 1983. Growth and allocation strategy of some perennial weeds of slash and agriculture in northeastern India. Can. J. Bot., 61(4): 1300–1306.

Somogyi, M. 1952. Notes on sugar determination. J. Biol. Chem., 195: 19–23.

Xavier, M. N., M. D. C. Fenagine, L. Gardes, R. W. Calvacanta, M. N. Xavier and I. A. Manteno. 2004. Yield components and morphogenesis of Aruana grass in response to N supply. Sci. Agric., 61: 632 – 639.

Zemenchick, R. A. and K. A. Albrecht. 2002. Nitrogen use efficiency and apparent N recovery of Kentucky bluegrass, smooth bromegass and orchardgrass. Agron. J., 94: 421– 428.


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