IJEP 42(10): 1186-1193 : Vol. 42 Issue. 10 (October 2022)
1. Wolaita Sodo University, College of Agriculture, Department of Plant Science, Ethiopia, East Africa
2. Wolaita Sodo University, College of Agriculture, Department of Rural Development and Agricultural Extension, Ethiopia, East Africa
The experiments were intended at three locations to formulate different levels of NPK fertilizers recommendations for barley based on the Mitscherlich-Bray equation at the Wolaita zone in southern Ethiopia. The experiments were laid out in randomized complete block design (RCBD) with factorial arrangements applying NPK with three replications. Treatments were levels of N (0.23 and 46, P, 0, 10, 20 and 30 and K, 0, 25 and 50 kg/ha) in all possible combinations. The theoretical maximum yield of barley was calculated by plotting log y vs 1/x (amount of nutrients applied). Fertilizer recommendations for various soil fertility levels and yield targets were developed and their validities were tested by conducting three field verification trials on the same soils. The results showed that although the general recommended fertilizer dose resulted in the highest yield of barley at all the locations, total value cost ratio and net revenue were lowest with this fertilizer treatment and maximum yield treatment was superior in terms of the economics of fertilizer. The model considers the interactions of N, P and K and soil properties adjusted potential yield of the region, which predicts crop yields from chemical soil characteristics, as an indicator of soil fertility.
Barley, Nitrogen, Phosphorus, Potassium, Total value cost ratio
- Muhe, K. and A. Assefa. 2011. Diversity and agronomic potential of barley (Hordeum vulgare L.) Landraces in variable production system, Ethiopia. World J. Agric. Sci., 7 (5): 599-603.
- CSA. 2014. Agricultural sample survey for the 2013/2014 crop season (volume I). Report on area and production of major crops private peasant holdings, Meher season. Statistical Bulletin, FDRE/CSA, Central Statistical Agency, Addis Ababa, Ethiopia.
- Deressa, A. 2013. Evaluation of soil acidity in agricultural soils of smallholder farmers in south-western Ethiopia. Sci. Tech. Arts Res. J., 2(2): 01-06.
- Kassa, F.K.M. and W. Haile. 2018. Effect of nutrient supply on nutrient use efficiency and yield of barley (Hordeum vulgare L.) in Wolaita, southern Ethiopia. Int. J. Curr. Res. Aca. Rev., 6(12):48-58. DOI: 10.20546/ijcrar.2018.612.006.
- Hailu, T. and B. Getachew. 2006. Eragrostis tef (Zuccagni) trotter. In Plant resources of tropical Africa 1. Cereals and pulses. Ed M. Brink and G. Belay. Prota Foundation, Wageningen/ Backhuys Publishers, Netherlands. pp 68-72.
- Boke, S. and A. Fekadu. 2014. Lime and NPK effect on soil acidity and yield of barley in different acid soils of the southern region, Ethiopia. Int. J. Natural Sci. Res., 2(7):113-122.
- Chimdi, A., et al. 2012. Response of barley to liming of acid soils collected from different land-use systems of western Oromia, Ethiopia. J. Biodiversity Env. Sci., 2(7):1-13.
- Hassen, A., et al. 2015. Best fit practice manual for food barley production. BDU-CASCAPE working paper 7. CASCAPE Project, The Netherlands.
- Haileselassie, A. and J.P. Lessechen. 2006. Small holders’ soil fertility management in the central highlands of Ethiopia: Implications for nutrient stocks, balances and sustainability of agroecosys-tems. Nutrient Cycle Agroecosystem. 75:135-146.
- Kiros, G., H. Mitiku and G. Girmay. 2014. Assessing the input and output flows and nutrients balance analysis at catchment level in northern Ethiopia. J. Soil Sci. Env. Manage., 5(1):1-12.
- Astatke, A., et al. 2004. Participatory on-farm conservation tillage trial in the Ethiopian highlands: The impact of potassium application on vertisols. Experimental Agric., 40:369-379.
- NMA. 2016. National Meteorological Agency, Hawassa Meteorological Service Center, Ethiopia
- FAO. 2008. Guide to laboratory establishment for plant nutrient analysis, fertilizer and plant nutrition (bulletin 19). Food and Agricultural Organization, Rome.
- Fageria, N.K. and M.P.B. Filho. 2007. Dry matter and grain yield, nutrient uptake and phosphorus use efficiency of lowland rice as influenced by phosphorus fertilization. Commun. Soil Sci. Plant Anal., 38: 1289-1297.
- Jackson, M.L. 1973. Soil chemical analysis. Prentice Hall of India Pvt. Ltd., New Delhi.
- Sertsu, S. and T. Bekele. 2000. Procedures for soil and plant analysis (technical paper 74). National Soil Research Center, Ethiopian Agricultural Research Organization (EARO), Addis Ababa.
- Bouyoucos, G.J. 1962. Hydrometer method improved for making particle size analysis of soils. J. Agron., 54: 464.
- Bremner, J.M. and C.S. Mulvaney. 1982. Nitrogen – Total. In Methods of soil analysis. Chemical and microbiological properties. Ed Page et al. SSSA, Madison, Wisconsin. pp 2:595-642.
- Bray, H.R. and L.T. Kurtz. 1945. Determination of organic and available forms of phosphorus in soils. Soil Sci., 9: 39-46.
- Morgan, M.F. 1941. Chemical soil diagnosis by the universal soil testing system (bulletin 450). Connecticut Agricultural Experiment Station, New Haven.
- Black, C.A. 1965. Methods of soil analysis (part II). American Society of Agronomy, Madison, Wisconsin, USA.
- Pansu, M., J. Gautheyrou and J.Y. Loyer. 2001. Soil analysis: Sampling instrumentation and quality control. A.A. Balkema, Tokyo.
- Lindsay, W.L. and W.A. Norvell. 1978. Development of a DTPA soil test for zinc, iron, manganese and copper. Soil. Sci. Soc. America J., 42: 421-428.
- Sonar, K. R. and V. P. Babhulkar. 2002. Application of Mitscherlich-Bray equation for fertilizer use in wheat. Comm. Soil Sci. Plant Analysis. 33:3241-3249.
- CIMMYT. 1988. From agronomic data to farmer recommendations: An economics training manual. International Centre for Maize and Wheat Improvement, Mexico.
- Rashid, A. 2010. Agro-economic feasibility of fertilizer use for wheat cultivation in rainfed regions of Pakistan. J. Agric. Res., 48:353-359.
- Islam, M., et al. 2012c. Response of chickpea to various levels of phosphorus and sulphur under rainfed conditions in Pakistan. Romanian Agric. Res., 29:175-183.