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- Title
Inoculating Faba Bean Seed with Rhizobium Bacteria Increases the Yield of the Crop and Saves Farmers from the Cost of Applying Phosphorus Fertilizer.
- Authors
Alemayehu, Demissie; Dechassa, Nigussie
- Abstract
Soil acidity is a serious problem constraining faba bean (Vicia faba L.) production in southern Ethiopia. Therefore, we conducted experiments in 2016 and 2017 to investigate the response of the crop to seed inoculation with Rhizobium bacteria and phosphorus application. The treatments consisted of inoculating seed of faba bean with three rhizobium isolates (FB-1018, FB-1035 and FB-Murdoch) plus one uninoculated and five rates of phosphorus fertilizer (0, 10, 20, 30, and 40 kg P ha−1). The experiments were laid out as a randomized complete block design in a factorial arrangement with three replications. We first tested the soil for selected physical and chemical properties. We then collected plant data on nodulation, yield components, and yield. The soil is strongly acidic (pH 5.1) and very low in contents of available phosphorus. The results revealed that the main effects of inoculation and phosphorus application significantly (P ≤ 0.01) influenced nodulation and yield. Inoculating faba bean seed with FB-1035 rhizobium isolate resulted in the highest grain yield of 3137 kg ha−1. Similarly, applying 30 kg P ha−1 resulted in the optimum grain yield of 3105 kg ha−1. We concluded that both seed inoculation and application of phosphorus fertilizer equally increased the yield of the crop, exceeding the yields of the respective control treatments by about 39% and 68%. The results imply that inoculating faba bean seed with Rhizobium bacteria is a valuable approach to enhance the yield of the crop for enhancing food and nutrition security with environmental sustainability.
- Subjects
ETHIOPIA; PHOSPHATE fertilizers; CROP yields; FAVA bean; RHIZOBIUM; SEED crops; INOCULATION of crops
- Publication
International Journal of Plant Production, 2022, Vol 16, Issue 2, p261
- ISSN
1735-6814
- Publication type
Article
- DOI
10.1007/s42106-022-00187-3