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Diagnosing nutrient limitations to lentil and chickpea in acid soils of Bangladesh

Marufuzzaman, M., Johansen, C., Bodruzzaman, M., Neogi, M.G., Bell, R.W.ORCID: 0000-0002-7756-3755 and Begum, R. (2010) Diagnosing nutrient limitations to lentil and chickpea in acid soils of Bangladesh. In: Gilkes RJ, Prakongkep N, editors. Proceedings of the 19th World Congress of Soil Science; Soil Solutions for a Changing World; Published on DVD;, 1 - 6 August, Brisbane, Australia, pp 91-94 pp. 91-94.

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Lentil and chickpea are dietary staple crops in Bangladesh but their local production has been markedly declining in recent decades, mainly due to competition with irrigated cereals. However, in northern Bangladesh, an additional problem to their cultivation is acid surface soil conditions, potentially causing deficiencies of molybdenum (Mo) and boron (B), and toxicities of aluminium (Al), manganese (Mn) or hydrogen ion (H+). In an attempt to rehabilitate lentil and chickpea in northern Bangladesh on-farm trials were conducted to determine the response of these crops to Mo, B, and lime and Rhizobium inoculation. Despite earlier reports of widespread B deficiency in the region a response to B was only found in chickpea. Responses to Mo and Rhizobium, applied through seed priming, were found. There were responses to lime even after B, Mo, and Rhizobium had been applied, suggesting Al toxicity. Recommendations for fertilizer requirement, to fit into an overall integrated crop management package for lentil and chickpea, were modified accordingly.

Item Type: Conference Paper
Murdoch Affiliation(s): School of Environmental Science
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