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Nitrogen Fixation and N-Balance Studies on Bambara Groundnut (Vigna subterranea L. Verdc) Landraces Grown on Tropical Acidic Soils of Malaysia
- Musa, Mukhtar, Massawe, Festo, Mayes, Sean, Alshareef, Ibraheem, Singh, Ajit
- Communications in soil science and plant analysis 2016 v.47 no.4 pp. 533-542
- Vigna subterranea, acid soils, alternative crops, cropping systems, field experimentation, food security, grain yield, landraces, nitrogen, nitrogen fixation, peanuts, Malaysia
- Bambara groundnut has great potential as an alternative crop for improving food security in its production regions and beyond. A field experiment was conducted at the Field Research Centre of the Crops for the Future to obtain information on the nitrogen (N) fixation and N balance of Bambara groundnut landraces on tropical acidic soils of Malaysia. Treatments consisted of three Bambara groundnut landraces (Ex-Sokoto, Kaaro, and NN-1) laid out in a randomized complete block design replicated three times. Results obtained revealed that Ex-Sokoto landrace was greater in yield and N fixation, whereas N balance (-haulm) was greater in NN-1 landrace. The results revealed grain yield of 703–2256 kg ha ⁻¹ and N fixation from 32–81 kg ha ⁻¹ and suggest that Bambara groundnut could be integrated into a cereal-based cropping system. Ex-Sokoto landrace appeared to be the most promising for yield and N fixation under Malaysian acidic soil conditions.