Anbumozhi, V.; Yamaji, E.; Tabuchi, T.2002 Determination of optimum spatial arrangement of rice plants in direct seeding methods. Acta Agronomica Hungarica, 2002, Vol.50, No.1, pp.35-42, 9 ref.
Borlagdan.P.C., and M. Yamauchi . 1995. Seeder developed for direct sowing of rice under the puddled soil surface. IRRN. 20(1) 29 –30.
Coates, W. (1992) Performance evaluation of a pendulum spreader. Trans. ASAE, 8 (3): 285-288.
Griepentrog, H. W.1999. On assessing seed distribution over area. Agrartechnische Forschung, 1999, Vol.5, No.2, pp.117-124, 19 ref.
Gupta, C. P. and Totok Herwanto(1992). Design and development of a direct paddy seeder. Agricultural Mechanization in Asia, Africa and Latin America. Vol. 23, No. 1, Pp. 23-27.
Hunt, D, (1983). Farm power and machinery management 8 th Ed., Iowa state Univ., Ames, U. S. A.
Khan, A.U. and A.F. El-Sahrigi, (1990). Selective mechanization of rice farming system in tropical Asia. Agric. Eng. Today 14(3,4): 40,52.
Md. Syedul Islam and Desa Ahmad (1990) Modification, test and evaluation of manually operated drum type seeder for lowland paddy. Pertanika J. Sci. & Technol. 7(2): 85 – 98 (1999).
Rao, A.N. ; D.E. Johnson ; B. Sivprasad ; J.K. Ladha and A.M. Mortimer (2007).Weed management in direct-seeded rice. Advances in Agronomy, volume 93(2007): 152 - 255.
Shekar, J. and C.M.Singh, 1991. Influence of methods and dates of stand establishment on growth and yield of rice. Oryza, 28:45-48.
Sudhir Y.; M.S.Gill and S.S.Kukal (2007)” performance of direct-seeded basmati rice in loamy sand in semi-arid sub-tropical India” Soil and tillage research, Volume 97, Issue2,December 2007 : 229-238.
Thakur AK, S. Roychowdhury, DK Kundu and Ravender Singh(2004) Evaluation of planting methods in irrigated rice.
Archives of Agronomy and Soil Science, Volume
50, Issue
6 December 2004, pages 631 - 640