Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Development of a Rice Seed Pelleting Machine for Direct Seeding in Rice Cultivation

직파용 벼 펠렛종자 제조장치 개발

  • Published : 2002.10.01
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Abstract

Direct seeding of rice-seed pellets is expected to be an alternative for solving problems in current direct seeding cultivation of rice. but mass production of rice-seed pellets is prerequisite for practical application. Design. construction and performance evaluation of an experimental rice seed pelleting machine were carried out for mass production of rice-seed pellets. The pelleting machine intended to make a ball type rice-seed pellet, which have 3∼5 rice seeds and diameter of which is 12 mm. Pellet materials ; rice seeds, soil, and binder were mixed and kneaded by the mixer. The designed rice seed pelleting machine fed pellet materials by screw conveyor to forming rolls and made rice-seed pellets. Capacity, ratio of perfect rice-seed pellets, seed and pellet material loss were investigated as mixing ratio of soil to rice seed and feeding rate of pellet materials. The pelleting machine showed up to 37,000 pellets/h of pelleting rate, 61∼71% of weight ratio of perfect rice-seed pellets to pellet materials supplied, 17∼48% of seed loss ratio. Average weight and average diameter of the pellets were 1.66 g and 12.0 mm. respectively. More than 3 rice seeds were included in most pellets at 6 : 1 of mixing ratio of soil to rice seed. And compression strength of the pellets was in the range of 88-130 N. To improve performance of the pelleting machine, improvements of the forming rolls, feeding mechanism, and discharging mechanism for reducing loss of pellet materials and seeds damage are needed.

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References

  1. Bulan, P. 1991. Some effect of seed coating and aging treatments on soybean germination and emergence. Mississippi State Univ. Ph. D. Thesis.
  2. Burris, J. S., A. H. Wahab and O. T. Edje. 1977. Effect of seed size on seedling performance in soybeans. Proc. Amer. Soc. Crop Sci. 11, pp.492-496. https://doi.org/10.2135/cropsci1971.114492x
  3. Kim, S. W. 2000. Studies on development of seed pellet technique for stabilization of direct wet seeding rice. Chonnam National Univ. Ph.D Thesis.
  4. Longden, P. C. 1975. Sugar beet seed pelleting. ADAS Q. REV. 18, pp.73- 80.
  5. Min, T. G. 1996. Development of seed pelleting technology for rice and cabbage. Korean J. Crop Sci. 41(6):678-684.
  6. Naito T. 1963. Studies on the coating of seed(1). Journal of the Japan Society of Agricultural Machinery. 25(1):35-38.
  7. Roos, E. E. and F. D. Moore. 1975. Effect of seed coating on perfonnance of lettuce seeds in greenhouse soil tests. J. Amer. Soc. Hort. Sci. 100(5):573-576.
  8. Singh, Jai. 1996. Design, construction and performance evaluation of seed peIIeting machine. Agri. Mech. in Asia and Africa 27(1):25-26.
  9. Taylor, A. G. and G. E. Hannan. 1990. Concepts and technologies of selected seed treatments. Ann. Rev. Phytopathol. 28, pp. 321-339. https://doi.org/10.1146/annurev.py.28.090190.001541
  10. Won, J. G., C. D. Choi, W. H. Lee, S. C. Lee, C. R. Kim and B. S. Choi. 1997. Improvement of rice seedling emergence by seed coating materials in direct seeding into flooded paddy soil. Korean J. Crop Sci. 42(3):286-291.