Effects of Compost and Inorganic NP Rates on Growth, Yield and Yield Components of Teff (Eragrotis teff (Zucc.) Trotter) in Girar Jarso District, Central Highland of EthiopiaAlemu Assefa1*, Tamado Tana2 and Jemal Abdulahi2
- *Corresponding Author:
- Alemu Assefa
Fitche Soil Research Center
Oromia Agricultural Research Institute, Ethiopia
E-mail: [email protected]
Received date: December 12, 2016; Accepted date: December 19, 2016; Published date: December 29, 2016
Citation: Assefa A, Tana T, Abdulahi J (2016) Effects of Compost and Inorganic NP Rates on Growth, Yield and Yield Components of Teff (Eragrotis teff (Zucc.) Trotter) in Girar Jarso District, Central Highland of Ethiopia. J Fertil Pestic 7: 174. doi:10.4172/2471-2728.1000174
Copyright: © 2016 Assefa A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Teff is the major crop produced in study area whose productivity is being affected by low soil fertility and organic matter depletion. Hence, an experiment, having factorial combination of 0, 2.5, 5 and 7.5 t ha-1 of compost and 0/0, 16/11.5, 32/23 and 64/46 kg ha-1 of N/P2O5, was conducted in 2014/15 main cropping season to assess the effect of rates of compost and NP fertilizers on growth, yield and yield components of teff and to determine their economical rates. Treatments were laid out in RCBD in three replications. The results indicated that the main effect of compost rate significantly increased dry biomass and straw yield and decreased harvest index. Except on number of productive tillers, the main effect of NP fertilizer was significant on all the parameters measured. The shortest days to heading, highest; lodging percentage, plant height, panicle length and dry biomass were recorded at 64/46 kg ha-1 of N/P2O5, all showing increasing trend with increasing NP. The highest grain and straw yield and net farm benefit were recorded at interaction of 64/46 N/P2O5 kg ha-1 and 7.5 tons ha-1 of compost. Generally, the study suggested that, the use full dose of nationally blanket recommended NP rate (64/48 kg of N/ P2O5) with 7.5 tons ha-1 of compost is likely combination to attain the optimum grain yield and profit and can be alternative approach for integrated soil fertility management measure instead of the sole application of inorganic fertilizers.