Main Article Content
A field experiment was carried out to evaluate different rates of vermicompost, and inorganic NPS(Nitrogen-Phosphate Fertilizer With Sulphur) fertilizers for wheat production in 2015-2017 main cropping seasons at L/machew district of the Tigray Regional State. There were five systematically combined rates of vermicompost and one rate of NPS treatments during the study. The experimental design was randomized complete block with three replications. Surface soil samples were collected before planting to analyze selected soil properties. The textural class of the soil was clay. The pH of the soil was rated under moderately acidic. Available P was rated under medium in most of the experimental sites while total N was low in all experimental sites. The treatments significantly affected crop phenology, yield and yield components of wheat. Thus tallest plant height was found from treatments that received 100kg/ha NPS, followed by 8.75t/ha vermicompost which resulted in (73.25cm) while the shortest plant (62.73cm) was obtained from control plots, respectively. Highest mean wheat grain yield (2642.8kg/ha) was obtained in response to 100kg NPS from inorganic fertilizer application followed by the second highest dose of vermicompost (7t/ha) with grain yield of 2620 kg/ha. At the wheat plants grown in plot received vermicompost compost at 7t/ha of vermicompost increased the grain yield by 67.78% over the control. Though highest grain yield was obtained from highest dose of vermicompost the partial budget analysis shows that the highest marginal rate of return (456) was obtained from 3.5t/ha VC ha-1 plus 100kg/ha urea at the study area.
Bezabih Emana, Hadera Gebremedhin, Nigatu Regassa. Impacts of Improved Seeds and Agrochemicals on Food Security and Environment in the Rift Valley of Ethiopia: Implications for the Application of an African Green Revolution. Dry lands Coordination Group Report. 2010; No.56 02.
Engdawork Assefa., Characteristics, classification and potentials of soils in Werkariya area, South Wollo, Ethiopia. SINET: Ethiopia Journal of Science. 2002; 25: 45-70.
Kihara, Job, Jeroen Huising, Generose Nziguheba, Boaz S. Waswa, S. Njoroge, V. Kabambe, E. Iwuafor, C. Kibunja, Anthony O. Esilaba, and A. Coulibaly. "Maize response to macronutrients and potential for profitability in sub-Saharan Africa." Nutrient cycling in agroecosystems . 2016; 105,171-181.
Bejbaruaha, R., R.C. Sharma, and P. Banik. “Split Application of Vermicompost to Rice (Oryza sativa L.): It’s Effect on Productivity, Yield Component and N Dynamics.” Organic Agriculture. 2013; 3:123–128
Purakayastha, T.J., L. Rudrappa, D. Singh, A. Swarup, and S. Bhadraray. “Long-Term Impact of Fertilizers on Soil Organic Carbon Pools and Sequestration Rates in Maize-Wheat-Cowpea Cropping System.” Geoderma. 2008;144: 370–378.
Suthar, Surindra, Sushma Singh. Feasibility of vermicomposting in biostabilization of sludge from a distillery industry. Science of the total environment. 2008; 237-243.
Suthar, Surendra. "Potential utilization of guar gum industrial waste in vermicompost production." Bioresource technology no. 2006;97:2474-2477.
Sawrup Integrated plant nutrient supply and management strategies for enhancing soil fertility, input use efficiency and crop productivity. J. Indian Soc. Soil Sci. A. 2010; 58:25-30.
Sheoran, H. S., B. S. Duhan, K. S. Grewal, and S. Sheoran. Grain yield and NPK uptake of wheat (Triticum aestivum L.) as influenced by nitrogen, vermicompost and herbicide (Clodinafop propargyl). African Journal of Agricultural Research. 2015; 10:3952-3961.
Kumar, A., Dhyani, B. P., Rai, A., and Kumar, V. Effect of timing of vermicompost application and different level of NPK on growth, yield attributing characters and yield of rice in rice-wheat cropping system. International Journal of Chemical Studies. 2017;5(5):2034-2038.
Rhoades, J.D. In Methods of Soil Analysis, Part 2. Second Edition (A.L. Page. Miller and D.R. Keeney, Eds.), American Society of Agronomy. Madison, USA; 1982.
Walkley, A., Black, I.A. An examination of the method for determining soil organic matter and proposed chromic acid titration method. Soil Science. 1934;37:29-38.
Bremner, J.M. Mulvaney, C.S. Nitrogen - Total. In A.L. Page, R.H. Miller and D.R.Keeney (eds.). Methods of soil analysis. Part 2-Chemical and microbiological properties. Agronomy. 1982; 9 (2): 595-624.
Olsen, S.R., C.V. Cole, F.S. Watanabe., L. A. Dean. Estimation of available phosphorus in soils by extraction with sodium bicarbonate. U.S. Dep. Agric. Circ.939, USA; 1954.
Chapman, H.D. Cation-exchange capacity. In: C. A. Black (ed.) Methods of soil analysis - Chemical and microbiological properties. Agronomy. 1965;9:891-901.
Mitiku Woldesenbet, Tamado Tana, Singh TN., and Teferi Mekonnen. Effect of Integrated Nutrient Management on Yield and Yield Components of Food Barley (Hordeum vulgare L.) in Kaffa Zone, Southwestern Ethiopia.Science, Technology and Arts Research Journal .2014;3(2):34-42.
Joshi, R., Vig, A. P., Singh, J. Vermicompost as soil supplement to enhance growth, yield and quality of Triticum aestivum L.: a field study. International journal of Recycling of organic waste in Agriculture. 2013;2(1):16.
Kakraliya, S. K., Kumar, N., Dahiya, S., Kumar, S., Yadav, D. D., Singh, M. Effect of integrated nutrient management on growth dynamics and productivity trend of wheat (Triticum aestivum L.) under irrigated cropping system. Journal of Plant Development Sciences. 2017;9(1): 11-15.
Devi, K. N., M. S. Singh, N. G. Singh, H. S. Athokpam. Effect of integrated nutrient management on growth and yield of wheat (Triticum aestivum L.). Journal of Crop and Weed. 2011; 23-27.
CIMMYT (International Center for Wheat and Maize Improvement). World Wheat Facts and Trends. Global Wheat Research in a Changing World, Challenges, and Achievements, CIMMYT,D.F,Mexico.2000;1998/99.