Vol. 10, Issue 4 (2022)
Nutrient status of cowpea [Vigna unguiculata (L.)] influenced by foliar nutrition under different management systems
Author(s): Sugina P and Bridgit TK
Abstract: An investigation entitled “Foliar nutrition of cowpea [Vigna unguiculata (L.)] under different management systems” was carried out at College of Agriculture, Padannakkad and Regional Agricultural Research Station (RARS), Pilicode, during 2018 - 20 with an objective to evaluate the effect of foliar nutrition under organic and integrated nutrient management practices in cowpea. The field experiment was carried out in randomized block design with 12 treatments, combinations of management system and six foliar nutrition. Management system includes KAU adhoc organic POP recommendations (2017) (S1) and KAU POP recommendations (2016 (S2). Six foliar nutrition, viz. ‘Sampoorna- KAU multi nutrient mix’ (F1), micro nutrient solution (F2), jeevamrutham (F3), humic acid (F4), fulvic acid (F5) and a control without foliar spray (F0), were tested in the study. Nitrogen, potassium and magnesium contents of the plant were significantly enhanced by S2 at flowering and at harvesting stage compared to S1. Foliar nutrition of humic acid enhanced the phosphorous content of plant at flowering stage. Interaction effects S1F2, S1F3, S1F4 and S1F5 were on par and significantly superior to other treatment combinations with respect to P content of plant at flowering stage. Jeevamrutham enhanced the K content of plant at flowering stage and was on par with humic acid and fulvic acid spray. At harvesting stage, S1F1 enhanced the calcium content of plant and was on par with all treatments except S1F5 and S2F2. Foliar nutrition of fulvic acid and humic acid increased the magnesium content of plant at both stages. Micro nutrient solution increased the Fe content of plant and was on par with F1, F3 and F5 at flowering and F1 and F5 at harvesting stage. Sampoorna enhanced the Zn content of plant at harvesting stage and was on par with jeevamrutham and fulvic acid.
Pages: 39-44 | 603 Views 118 Downloads
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How to cite this article:
Sugina P, Bridgit TK. Nutrient status of cowpea [Vigna unguiculata (L.)] influenced by foliar nutrition under different management systems. Int J Chem Stud 2022;10(4):39-44.
