%0 Journal Article %A Mashabela, Ngwatshipane Madonna %A Otang-Mbeng, Wilfred %T Evaluating the Effect of Fertilizers on Physiological Growth, Chemical, Bioactive Components and Secondary Metabolites in Vigna Unguiculata (L.) %J Plant Biotechnology Persa %V 4 %N 1 %U http://pbp.medilam.ac.ir/article-1-98-en.html %R 10.52547/pbp.4.1.6 %D 2022 %K Cowpea, organic fertilizer, FRAP, Mpumalanga Province, %X Objective: Vigna unguiculatata (L.) (Cowpea) is an African indigenous protein-dense crop that most sub-Saharan Africans rely on for food and nutrition security. Material and Methods: The current study assessed the effect of different levels of poultry manure fertilizer (10, 30, 60 and 90 kg F/ha) and nitrogen fertilizer (30, 45, 60 and 90 kg N/ha) on the growth, yield, mineral composition, bioactive compounds and secondary metabolites in the legume crop Vigna unguiculata (L.). At the end of 15 weeks, 90 kg F/ha and 45 kg N/ha enhanced the growth, yield, mineral composition, production of ascorbic acid, total phenolic and FRAP assay, this informed our decision for the selection of this treatments (45kgN/ha, 90kgF/ha and 0kg/ha control) for further analyses of secondary metabolites. Results: Poultry manure and nitrogen fertilizer improved the mineral compositions of cowpea leaves, and different accumulation trends were noted depending on different application levels, with poultry manure responding well. Conclusion: Thus, the application of organic poultry manure at 90 kg F/ha for cowpea cultivation should potentially be recommended in the Mpumalanga Province. %> http://pbp.medilam.ac.ir/article-1-98-en.pdf %P 35-48 %& 35 %! %9 Research %L A-10-428-2 %+ School of Biology and Environmental Sciences, Faculty of Agriculture and Natural Sciences, University of Mpumalanga,P/Bag X11283, Mbombela, 1200, South Africa %G eng %@ 2676-7414 %[ 2022