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Use of inorganic fertilizers constitutes 20% of the rice production cost in Mwea. Azolla fern, which grows in Mwea Irrigation paddies, has the potential to supplement the nitrogen requirement, thus reducing the fertilizer costs. A field experiment was conducted in Mwea Irrigation Scheme during 2015 long and short rains to determine the effect of Azolla incorporation and inorganic nitrogen on growth and yield of rice.
The treatments comprised three nitrogen fertilizer levels (0, 30 and 60kg N ha-1) and three Azolla biomass levels (0, 7.5 and 15tons ha-1) laid out in a randomized complete block design with a split-plot arrangement. Data on plant height and number of tillers per plant were collected at 21, 35, 45, and 65 and 75 days after transplanting rice while yield and yield components were determined at 120 days after transplanting rice. Soil was analysed for N, P and K, before and after termination of the experiment. Data were subjected to analysis of variance using SAS and means separated using the least significant difference test at p ≤ 0.05. Azolla incorporation significantly increased residual soil phosphorus, grain weight, % grain filling and grain yield. Inorganic nitrogen significantly increased plant height, tiller numbers, neck node, and panicle length, number of panicle m-2 and grain yield. Grain yield increase from Azolla treatment ranged from 5 to 42% compared to that of inorganic nitrogen which ranged from 18 to 36%. Application of 15t ha-1 of Azolla biomass recorded the highest yield, however, it was not significantly different from that of 7.5t ha-1. Get the full abstract at: Int. J. Agron. Agri. Res. 14(3), 1-8, March 2019.
International Journal of Agronomy and Agricultural Research - IJAAR is an open-access scholarly research journal, published by International Network for Natural Sciences. IJAAR publishes original scientific research articles in the field of Agronomy and Agricultural Sciences. IJAAR published 2 Volume and 12 issue per the calendar year.
Citation Sample
WA Oyange, GN Chemining’wa, JI Kanya, PN Njiruh.
Effects of Azolla and inorganic nitrogen application on growth and yield of rice in mwea irrigation scheme.
Int. J. Agron. Agri. Res. 14(3), 1-8, March 2019.
https://innspub.net/ijaar/effects-azolla-inorganic-nitrogen-application-growth-yield-rice-mwea-irrigation-scheme/
Referenc
Effects of Azolla and inorganic nitrogen application on growth and yield of rice in mwea irrigation scheme
Alim MA. 2012. Effect of organic and inorganic sources and doses of nitrogen fertilizer on the yield of Boro rice. Environmental Science and Natural Resources 5(1), 273- 282.Awodun MA. 2008. Effect of Azolla on Physiochemical properties of the soil. World Journal of Agricultural Scieneces 4(2), 157-160.
Blumentha JM, Baltensperger DD, Cassman KG, Mason SC, Pavlista AD. 2008. Importance and effect of nitrogen on crop quality and health. Faculty Publications, Agronomy and Horticulture, p200.
Bocchi S, Malgioglio A. 2010. Azolla-Anabaena as a bio-fertilizer for rice paddy fields in the Po valley, a temperate rice area in northern Italy. International Journal of Agronomy 2010, 152-158.
Carrapiço F, Teixeira G, Diniz M. 2000. Azolla as a bio-fertiliser in Africa. A challenge for the future. Revista de Ciências Agrárias 23(3-4), 120-138.
Cheng-Wei L, Yu S, Bo-Ching C, Hung-Yu L. 2014. Effects of Nitrogen Fertilizers on the Growth and Nitrate Content of Lettuce (Lactuca sativa L.) International Journal of Environmental research and Public Health, Vol 11 (4), 4427-40.
Choudhury ATMA, Kennedy IR. 2005. Nitrogen fertilizer losses from rice Soils and control of environmental pollution problems. Communications in Soil Science and Plant Analysis 36, 1625-1639.
De Datta SK, Stangel PJ, Craswell ET. 1981. Evaluation of nitrogen fertility and increasing fertilizer efficiency in wet lands rice soils. Proceedings of symposium on paddy soil, p171-206.
Dobermann A, Fairhurt TH. 2002. Rice straw management, Better crops, vol 16.online, www.ipni.net/ publication/bci.nst,.
Ferentinos L, Smith J, Valenzuela H. 2002. Sustainable agriculture, green manurecrops.0nline-www/ctahr.hawai.edu/oc/freepubs/greenmanurecrops/ azollla.pdf
Ganeshamurthy AN, Rupa TR, Kalaivanan D, Radha TK. 2017. Sources of reactive nitrogen, environmental and climate effects, management options, and policies The Indian Nitrogen Assessment P. 133-147.
Mahalingam PU, Muniappan K, Arumugam N, Senthil MG. 2014. Use of Azolla bio-fertilizer in pot culture studies with paddy crop Oryza sativa. Innovare Journal of Agricultural Science 3(2), 1-6.
Qiu W, Curtin D, Beare M, Gregorich. 2012. Temperature sensitivity of organic matter mineralization in soils with contrasting management histories. Gains from the past- Goals for the future. Occasional report no 25, Fertilizer and lime research Centre, Massey University, Palmerston North, New Zealand.
Republic of Kenya, AIRS internal reports no 22, p26; (1982), no 34, p25; (1984), no 44, p14-15(1981).
Republic of Kenya, MOA & JICA, Rice-MAPP. 2012. Baseline survey in Mwea Irrigation Scheme p9, p21, 2012.
Setiawati MR, Damayani M, Herdiyantoro D, Suryatmana P, Anggraini D, Khumairah HF. 2018. The application dosage of Azolla pinnata in fresh and powder form as organic fertilizer on soil chemical properties, growth and yield of rice plant. AIP Conference Proceedings 1927, 030017 (2018); DOI: 10.1063/1.5021210.
Subedi P, Shrestha J. 2015. Improving soil fertility through Azolla application in low land rice; A review. Azarian Journal of Agriculture 2, 35-39.
Wanjogu RK, Mugambi G, Adoli HL, Shisanya SO, Tamura M. 1992. Mwea Rice Production manual, p22-2.
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