In many developing countries mining plant nutrients by crop removal without adequate replenishment combined with imbalance plant nutrition practices, poses a serious threat to agricultural production. A field experiment was conducted for two consecutive years (2017 to 2018) to observe the response of maize to different rates of NPSB fertilizer. The experiment comprises of five treatments: control (no fertilizer), 150 kg NPSB + 41 kg urea (46N, 54P2O5, 10S, 1.07B), 200kg NPSB + 72kg urea (69N, 72P2O5, 13.5S, 1.4B), 250kg NPSB 102 kg urea (92N, 90P2O5, 17S, 1.75B), and 100kg NPSB + 260kg urea (138N, 36P2O5, 6.7S, 0.71B) were tested using randomized complete block design with three replications. The initial soil physical and chemical analysis indicated that the study area is generally characterized as medium in soil fertility and moderately acidic. The analyzed soil data after harvesting showed that the application of blended fertilizer rates numerically increased the total nitrogen and available sulfur in the soil. However, some nutrients like available P, K, and B become decreased numerically in the soil after harvesting. The result showed that there were significant differences (p<0.05) between treatment. The application of different levels of NPSB fertilizer significantly influenced maize grain yield but there were no significant difference on plant height and biomass yield of maize. 65 to 117% grain yield improvements over control was obtained by application of different rates of NPSB. The highest grain yield of maize was recorded from 100kg NPSB + 260kg urea (138N, 36P2O5, 6.7S, 0.71B) application of the highest net benefit (ET Birr 24226.7) and MRR% (699.1) was also obtained by application of 100kg NPSB + 260kg urea (138N, 36P2O5, 6.7S, 0.71B). It is then recommended that to improve maize yield at Debub Ari and similar agro ecology and soil condition areas application of 100kg NPSB + 260kg urea ha-1 (138N, 36P2O5, 6.7S, 0.71B) is recommended.
maize yield, blended fertilizer, NPSB, economic benefit
ATA (Agricultural Transformation Agency). (2014). “Annual Report: Transforming Agricultural Ethiopian: By Agricultural Transformation Agency of Ethiopia, 2001/02”. Addis Ababa.
Ayeni, L. S., & Adetunji, M. T. (2010). Integrated application of poultry manure and mineral fertilizer on soil chemical properties, nutrient uptake, yield and growth components of maize. Nature and science, 8(1), 60-67.
Bakht, J., Ahmad, S., Tariq, M., Akber, H., & Shafi, M. (2006). Response of maize to planting methods and fertilizer N. Journal of Agricultural and Biological Science, 1(3), 8-14.
CIMMYT. (1988). From Agronomic data to Farmer Recommendations: An Economic work Book. Mexico, D.F.: CIMMYT.
CSA (Central Statistical Agency). (2017). “Agricultural Sample Survey for the 2016/2017 crop season. Report on Area and production of Crops for Private Peasant Holdings (Meher Season) Statistical Bulletin 446.” Vol. I. FDRE/CSA, Addis Ababa, Ethiopia
FAO. (1998). “Guide to Efficient Plant Nutrition Management. Land and Water Development Division.”
FAO (Food and Agriculture Organization). (2006). Guidelines for Soil Description, Food, and agriculture. Organization of the United Nations, Rome, Italy.
Gruhn, P., Goletti, F., & Yudelman, M. (2000). Integrated nutrient management, soil fertility, and sustainable agriculture: current issues and future challenges. Intl Food Policy Res Inst.
Ram, H., & Dwivedi, K. N. (1994). Delineation of sulphur deficient soil groups in the central alluvial tract of Uttar Pradesh. Journal of the Indian Society of Soil Science, 42(2), 281-286.
IFA. (2015). “4r Nutrient Stewardship A Policy Toolkit What is the Fertilizer Industry Doing to Promote. International Fertilized Industry Association (IFA).” Paris, France.
Isherwood, K. F. (2000). Mineral Fertilizer Use and the Environment. International Fertilized Industry Association. United Nation Environment Program.
Jones J.B., 2003. Agronomic Handbook: Management of Crops, Soils, and Their Fertility. CRC Press LLC, Boca Raton, FL, USA. pp.482.
Mesfin Admasu, (2009). “The Federal Democratic Republic of Ethiopia. Ministry of Agricultural and Rural Development. Environment and Social Assessment Fertilizer Support Project ID: P113156.”
Ministry of Agriculture and Rural Development. (2009). “Animal and Plant Health Regulatory Directorate Crop Variety Register Issue.” Addis Ababa, Ethiopia.
Okumura, R. S., Takahashi, H. W., dos Santos, D. G. C., Lobato, A. D. S., Mariano, D. D. C., Marques, O. J., ... & de Lima Junior, J. A. (2011). Influence of different nitrogen levels on growth and production parameters in maize plants. Journal of food, agriculture & Environment, 9(3/4 part 1), 510-514.
Weldegebriel, R., Araya, T., & Egziabher, Y. G. (2018). Effect of NPK and blended fertilizer application on nutrient uptake and use efficiency of selected sorghum (Sorghum bicolor (L.) Moench) varieties under rain-fed condition in Sheraro District, northern Ethiopia. Momona Ethiopian Journal of Science, 10(1), 140-156.
Roy, R. N., Misra, R. V., Lesschen, J. P., & Smaling, E. M. A. (2003). Assessment of soil nutrient balance: approaches and methodologies (No. 14). Food & Agriculture Org.
Sapkota, D., & Pokhrel, S. (2010). Community based maize seed production in the hills and mountains of Nepal: A review. Agronomy Journal of Nepal, 1, 107-112.
SAS. 2010. “Users Guide, Statistics.” SAS Inst, Inc., Cary, NC.
Sharma, Krishna Murari, Deendayal Sharma, Shiv Singh Tomar, Chauhan Ganpat Singh, and Tanwar Suresh Pal Singh. (2016). “Balanced Fertilization and Bioregulators: Enhancing Productivity and Profitability of Wheat (Triticum Aestivum)” 0340 (May). https://doi.org/10.1080/03650340.2010.501796.
Tadesse, T., Haque, I., & Aduayi, E. A. (1991). Soil, plant, water, fertilizer, animal manure & compost analysis manual.
Tisdale, S. L., & Nelson, W. L. (1966). Soil fertility and fertilizers. Soil Science, 101(4), 346.