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Item GROWTH AND YIELD RESPONSE OF COMMON BEAN (Phaseolus vulgaris L.) VARIETIES TO NPSB BLENDED FERTILIZER RATES AT EZHA DISTRICT, SOUTHERN ETHIOPIA(WOLKITE UNIVERSITY, 2022-04) DESALEGN KEBEDE ADEBAThe current average yield of common beans is far less than the national attainable yield in the study area. This is partially due to low soil fertility management and a lack of improved varieties. A field experiment was conducted to evaluate the effect of blended NPSB rates on yield and yield components of common bean varieties, to determine the optimum rate of blended NPSB fertilizer required and the best variety for optimum growth and yield of common bean, and to investigate economically feasible rates of blended NPSB fertilizer for common bean production. The experiment was conducted at Ezha district during 2022 cropping seasons. Treatments consisted of factorial combinations of four common bean varieties (Sab632, Ser119, Ser125, and Bz2) with four NPSB fertilizer rates (0, 50, 100, and 150 kg ha-1) laid out in a randomized complete block design with three replications. Data was collected on growth and yield and yield components and analyzed using SAS (version 9.3). The result showed that NPSB blended fertilizer rate and varieties significantly influenced most of the tested parameters of common bean. The highest days to flowering (51.0), nodule dry weight (3.106), number of pods per plant (17.60), above ground dry biomass (6131.7 kg ha-1), and grain yield (2862.7 kg ha-1) were recorded due to the application of 150 kg of NPSB ha-1 for variety Ser119. The highest days to maturity (99.33) and plant height (83.73cm) were recorded from variety Ser125 with a 150 kg NPSB fertilizer application rate. The maximum number of total nodules (73.67), effective nodules (43.55) and the highest harvest index (48.89%) were recorded from variety Ser119 with a 100 kg ha-1 NPSB fertilizer application rate. With a 150 kg ha-1 NPSB fertilizer application rate, variety Sab632 produced the highest hundred seed weight (42.30). The highest number of seeds per pod (3.76) was recorded from variety Ser125. Net benefit of 81,123.3 birr ha-1 was obtained from the treatment combination of 100 kg NPSB ha-1 application rate for variety Ser119. Thus, based on the study results, the application of 100 kg NPSB ha-1 with variety Ser119 could be recommended to enhance the productivity with the highest net benefits of common bean in the study area. The experiment was done only xii at one location and one season therefore it would have to be replicated across location and season to get best conclusive result and sound full recommendation for specific area in order to assure finding of the current study.