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http://dx.doi.org/10.7740/kjcs.2021.66.4.271

Effects of Azolla Incorporation During Paddy Cultivation on Weed Control, Nitrogen Supply and Rice Yield  

Shin, Jong-Hee (Division of Crop Research, Gyeongsangbuk-do Provincial Agricultural Research and Extension Services)
Han, Chae-Min (Division of Crop Research, Gyeongsangbuk-do Provincial Agricultural Research and Extension Services)
Kwon, Jung-Bae (Division of Crop Research, Gyeongsangbuk-do Provincial Agricultural Research and Extension Services)
Won, Jong-Gun (Division of Crop Research, Gyeongsangbuk-do Provincial Agricultural Research and Extension Services)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.66, no.4, 2021 , pp. 271-278 More about this Journal
Abstract
Azolla is a genus of small aquatic ferns native to Asia, Africa, and America. Azolla is potentially significant as a nitrogen source in agriculture, particularly in conjunction with rice (Oryza sativa L.) cultivation. In addition, Azolla may either control weeds or act as a weed depending on management; therefore, we aimed to determine the effect of Azolla incorporation on weed (e.g., Monochoria vaginalis, Rotala indica, Aeschynomene indica, and Cyperus amuricus) control and its other benefits during rice cultivation. The effects of Azolla on weed emergence were evaluated based on plot area coverage by the Azolla mat, which appears as a green sheet over water, and the rate of weed emergence in paddy field. Weed occurrence was investigated 40 days after Azolla inoculation. Soil samples from the experimental plots were collected following harvest in 2014-2015, and analyzed. Moreover, rice growth, yield, and grain quality were measured. Azolla suppressed weed growth by 72%. Azolla mat incorporation in rice fields suppressed weed growth by over 60%. In addition, Azolla promoted nitrogen fixation. Compared with nitrogen management using chemical fertilizers, Azolla incorporation showed the potential for various positive effects, including the improvement of soil fertility by increasing total nitrogen, and organic matter content. Rice grown with Azolla maintained its yield without additional herbicide treatment. Moreover, the palatability of cooked rice was better when grown with Azolla.
Keywords
Azolla; duckweed; rice; weed control;
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  • Reference
1 Anonymous. 1975. Cultivation, propagation and utilization of Azolla, Institute of Soils and Fertilizers. Cheiang agriculture Academy. Cheiang.
2 Kropff, M. J. 1993. Eco-physiological models for crop-weed competition. In: Modelling crop-weed interactions (ed. by Kropff M. J. and H. H. X. Van Laar). Oxford University Press. the Philippines. p. 25-32.
3 Baltazar, A. M. and S. K. De Data. 1992. Weed management in rice. Weed Abstr. 41 : 495-507.
4 Han, G. S., H. J. Chung, Y. M. Lee, and J. H. Yoon. 2012. Quality characteristics of cooked rice with mixed cereals by blending ratio of the cereals frequently consumed in Korea. Kor. J. Community Living Sci. 23(4) : 587-552.
5 Lee, C. H., S. B. He, Y. C. Lee, D. M. Oh, and S. H. Kim. 2004. (eds) Manuals for organic and eco-friendly farming. National Academy of Agricultural Science. Suwon. Korea.
6 Moran, K., J. Backman, H. Brinkhuis, S. C. Clemens, T. Cronin, G. R. Dickens, F. Eynaud, J. Gattacceca, M. Jakobsson, R. W. Jordan, M. Kaminski, J. King, N. Koc, A. Krylov, N. Martinez, J. Matthiessen, D. McInroy, T. C. Moore, J. Onodera, M. O'Regan, H. Palike, B. Rea, D. Rio, T. Sakamoto, D. C. Smith, R. Stein, K. St John, I. Suto, N. Suzuki, K. Takahashi, M. Watanabe, M. Yamamoto, J. Farrell, M. Frank, P. Kubik, W. Jokat, and Y. Kristoffersen. 2006. The Cenozoic Palaeo environment of the Arctic Ocean. Nature. 441 : 601-605.   DOI
7 Arora, A. and P. K. Singh. 2003. Comparison of biomass productivity and nitrogen fixing potential of Azolla spp. Biomass Bioenergy. 24 : 175-178.   DOI
8 Bindhu, K. B. 2013. Effect of Azolla extract on growth performance of Pisum sativum. International Research Journal of Biological Sciences. 2(10) : 88-90.
9 Biswas, M., S. P. Veen, H. Shimozawa, and N. Nakagoshi. 2005. Effects of Azolla species on weed emergence in a rice paddy ecosystem. Weed Biology and Management. 5 : 176-183.   DOI
10 Ferentinos, L., J. Smith, and H. Valenzuela. 2002. Green manure crops: Azolla, sustainable agriculture green manure crops. Aug. 2002. CTAHR-SA-GM-2.
11 McConnachie, A. J., M. P. de Wit, M. P. Hill, and M. J. Byrne. 2003. Economic evaluation of the successful biological control of Azolla filiculoides in South Africa. Biol. Control 28 : 25-32.   DOI
12 Buckingham, K. W., S. W. Ela, J. G. Morris, and C. R. Goldman. 1978. Nutritive value of the nitrogen fixing aquatic fern Azolla filiculoides. J. Agric. Food Chem. 26 : 1230-1234.   DOI
13 Han C. M., S. K. Kim, J. H. Shin, J. W. Kim, J. B. Kwon, and Y. S. Shin. 2019. Occurrence and distribution of ALS inhibition herbicide resistant paddy weeds by using soil assay in Gyeongsanbuk-do, Republic of Korea. Weed & Turfgrass Sci. 8(4) : 289-298.
14 Lumpkin, T. A. and D. L. Plucknett. 1980. Azolla: botany, physiology, and use as a green manure. Econ. Bot. 34 : 111-153.   DOI
15 Zoschke, A. 1990. Yield loss in tropical rice as influenced by the competition of weed flora and the timing of its elimination. In: Pest management in rice (ed. by Grayson B. T., M. B. Green, and L. G. Coppomg). Elsevier Science. London. p. 301-313.
16 Ngo, G. D. 1973. The effect of Azolla pinnata R. Br. on rice growth. In. Biotrop Report-Second Indonesian Weed Science Conference, 2-5 April. Jogiakarta. Indonesia. No. 23.
17 Pons, T. L. 1987. Growth rates and competitiveness to rice of some annual weed species. In: Studies on weeds and rice competition (ed. by Sorianegara I.). Biotrop. Bogor. Indonesia. p. 13-21.
18 Satapathy, K. B. and P. K. Singh. 1985. Control of weeds by Azolla in rice. J. Aquat. Plant Manage. 23 : 40-42.
19 Singh, A. L. and P. K. Singh. 1987. Influence of Azolla management on the growth, yield of rice and soil fertility. II. N and P contents of plants and soil, Plant Soil 102 : 49-54.   DOI
20 Smith, R. J. Jr. 1983. Weeds of major economic importance in rice and yield losses due to weed competition. In: Proceedings of the conference on weed control in rice (Manila, the Philippines). International Rice Research Institute. Manila. p. 19-36.
21 Ventura, W. and I. Watanabe. 1993. Green manure production of Azolla mycrophylla and fertility. Biol. Fertil. Oils. 15 : 241-248.   DOI
22 Kwon, O. D., H. G. Park, K. N. An, Y. Lee, and S. H. Shin. 2010. Weed control efficacy and injury of rice plant by golden apple snail (Pomacea canaliculata) in environment-friendly rice paddy fields. Kor. J. Weed Sci. 30(3) : 282-290.   DOI
23 Lee, T. B. 1979. Illustrated flora of Korea. Hyang Mun Sa. Seoul. Korea.
24 Liu, C. C. 1985. Reevaluation of Azolla utilization in agricultural production. Proceeding of the workship on Azolla use. China. p. 76-85.
25 Liu, C. C. and W. W. Zheng. 1989. Azolla in China. Agriculture Publishing House. Beijing.
26 Lumpkin, T. A. and D. L. Plucknett. 1982. Azolla as a green manure: use of management in crop 6. Moore, A. W. 1969. Azolla: biology and agronomic significance. Bot. Rev. 35 : 17-35.   DOI
27 Mandal, B., P. L. G. Vlek, and L. N. Mandal. 1999. Beneficial effect of blue-green algae and Azolla, excluding supplying nitrogen, on wetland rice fields. Biol. Fertil. Soils 28 : 329-342.   DOI
28 Moody, K. and D. J. Janiya. 1992. The role of Azolla in weed control in rice, Philippine Journal of Weed Science 19 : 79-102.
29 Singh, P. K., B. C. Panigrahi, and K. B. Satapathy. 1981. Comparative efficiency of Azolla, blue-green algae and other organic manures in relation to N and P availability in a flooded rice soil. Plant Soil 62 : 35-44.   DOI
30 RDA. 2019. Development of soil fertility management technologies for stable rice product under conditions both of return or removal rice straw in paddy. Rural Development Administration. Jeonju, Korea.
31 Watanabe, I. and C. V. Hove. 1996. Phylogenetic, molecular and breeding aspects of Azolla-Anabaena symbiosis. In: Pteridology in perspective (ed. by Camus J. M., M. Gibby, and R. J. Johns). Royal Botanic Gardens. Kew. p. 611-619.