Evaluation of Different Blended Fertilizers Types and Rates for Better Production of Teff (Eragrostis tef) Yield and Yield Components in Tembaro District Kembata Tembaro Zone Southern Ethiopia

The current study was conducted for two consecutive years (218 and 2019) on clay particle dominated soils of Bohe and Bachira kebele in Temabro district kembata Tembaro Zone southern Ethiopia. The main objective of the study was to evaluate different blended fertilizer types and rates for better production of Teff in the study area. The trial have nine treatments (0), (34.5- 37.7-0- 6.95-0.1-0), (46- 55.05-0-10.425-0.15-0), (69-75.4-0-13.9-0.2-0), (34.5-37.7-0-6.95-0.1-0.4), (46-55.05-0-10.425-0.15-0.4), (69-75.4-0-13.9-0.2-0.4), (34.5-37.7-30-6.95-0.1) and (34.5-37.7-30-6.95-0.1-0.4) from NPKSBCu fertilizer sources. The experimental design was randomized compete block design (RCBD) across farmers field and repeated three times per farmer. The highest teff grain yields were recorded with application of 100kg NPSB+ 15.6 kg Urea (T2), 100kg NPSB+30 kg potassium fertilizer (K) (T8), 150kg NPSB+ 38.4 kg Urea (T3) and 200kg NPSB + 67.83 kg Urea per hectare (T4) as compared to T1, T5, T6, T7 and T9. Based on this finding four treatments (T2, T3, T4 and T8) were showed better yield response and those could be suggested as alternative fertilizer sources and soil management options for teff production in the study area. Finally the application of 100kg NPSB+30 kg Potassium fertilizer (34.5-37.7-30-6.95-0.1) and 150 kg NPSB (46- 55.05-0-10.425-0.15) were recommended as first and second options. Economic analysis also reviled that the highest marginal rate return of 16.72 and 7.24 were recorded respectively. The soils of the study area were strongly acidic and poor in available soil nutrient content. Therefore it needs integrated soil fertility management practices for further production of crops in the study area

Effects of NPSB Fertilizers Rate on the Yield of Common Bean (Phaseolus vulgaris L.) at Tocha District, Southern Ethiopia

Use of balanced nutrition means supplying other essential plant nutrients in adequate amount and proportion along with N and P. This implies N and P fertilizers are not the only yield determining nutrients but also S, B, and Cu nutrients are important nutrient for crop production. A trial was conducted in Tocha District to evaluate the rate of blended fertilizers to improve Common bean yield during main cropping season of 2019 and 2020. The experiment consists of seven treatment including (1) control, (2) NPSB: 18.9-37.7-6.95-0.1 (3) NPSB: 28.35-56.55-10.425-0.15 (4) NPSB: 37.8-75.4-13.9-0.2, (5) NPSB: 18.9-37.7-6.95-0.1+0.4kgCu, (6) NPSB: 28.35-56.55-10.425-0.15+0.4kgCu and (7) NPSB: 37.8-75.4-13.9-0.2+0.4kgCu. Soil physic chemical properties of the experimental site had moderately acidic, moderate level of OC and total N, high level of exchangeable K, very high level of CEC, low level of available P and clay loam textural class. In generally, application of blended fertilizer yielded better when compared with control. NPSB with the ratio of 37.8-75.4-13.9-0.2 (200kg NPSB) gave significantly optimum yield (4368.83 kg ha-1) compared to other treatments and also the highest net benefit (18725 ETB/ha) was obtained with acceptable marginal rate of return (MRR) (375.91%) which is more than the minimum acceptable MRR (100%) considered in this experiment. Similarly, NPSB 18.9-37.7-6.95-0.1 gave considerable net benefit with acceptable MRR. Therefore, based on the yield response and economic indicators, 200kg NPSB (37.8-75.4-13.9-0.2) is recommended as the best option and 100kg NPSB (18.9-37.7-6.95-0.1) as an alternative option for common bean producers at Tocha district and areas with the same soil conditions and agro-ecology.&nbsp