@article{3465, author = "Alemayehu Abdeta and Solomon Tulu and Gezahegn Berecha", abstract = "Bread wheat is one of the major staple crops in Ethiopia. In Gechi district, the productivity of bread wheat is below its potential due to poor agronomic constraints and lower soil fertiity. Balanced fertilization is one of the vital tools to defeat soil fertility problems and is thus responsible for improved food production. An experiment was conducted to determine optimum rates NPSB and Urea fertilizers on growth, yield and nutrient uptake and use efficiency of bread wheat in Gechi district. Three rates of NPSB (50, 100, and 150 kg ha-1) and three rates of Urea (50, 100 and 150 kg ha-1) were deliberately combined and tested with control. The treatments were arranged in a randomized complete block design with three replications. The results of the experiment indicated that maturity date, spike length, grain yield, harvest index and number of seed spike-1 were significantly affected by only the main effects of NPSB and Urea. The longest days to maturity (133.22 days), spike length (7.11 cm) , grain yield (5305.60 kg ha-1), harvest index (60.62%), and number of seed spike-1 (42.10 seed) were recorded at the highest rate of 150 fertilizer kg ha-1. Longest day to heading (66.67 days), plant height (91.67 cm). The maximum number of total tillers (7.50 par plant), productive tillers (3.61 plant), biomass yield (10737.3 kg ha-1), straw yield (4351.1 kg ha-1), were obtained at combining application of 150 kg ha-1 NPSB with urea kg ha-1. However, the higher value of Agronomic efficiency, physiological efficiency and Agronomic recovery of nitrogen was obtained at lowest Nitrogen rate. The result of economic analysis showed that combined application of 150 kg ha -1 NPSB and 100 Urea kg ha -1 of Urea gave economic benefit of 100328.24 Birr ha-1 with the marginal rate of return of 3838.76%. Thus, the use of 150 kg ha-1 of NPSB and 100 kg ha -1 of Urea can be recommended for better production of bread wheat in the study area.", issn = "23191473", journal = "IJAIR", keywords = "Bread Wheat;Nutrient Use Efficiency;Periodic Biological", month = "November", number = "3", pages = "96-116", title = "{P}eriodic {B}iological, {Y}ield, {N}utrient {U}ptake and {U}se {E}fficiency of {B}read {W}heat as {I}nfluenced by {NPSB} and {U}rea {F}ertilize {R}ates in {G}echi {D}istrict, {S}outhwestern {E}thiopia", volume = "12", year = "2023", }