Vol. 12, Issue 5 (2023)

Author(s):
Shahna S Salim, Dr. Shimi GJ, Dr. Shalini Pillai P, Dr. Sheeja K Raj and Shruthy ON

Abstract:
An experiment entitled “Enhancing nutrient use efficiency through Nano fertilizers in bush type vegetable cowpea (Vigna unguiculata subsp. unguiculata (L.) Verdcourt)” was conducted at College of Agriculture, Vellayani to assess and evaluate the effectiveness of foliar applied nano-N and nano-Zn on growth and yield attributes of bush type vegetable cowpea. The experiment was conducted during January to March 2022 in randomized block design with ten treatments replicated thrice. The variety of bush cowpea used was Bhagyalakshmi. Nano-N and nano-Zn were applied at 15 DAS, 30 DAS and 45 DAS in different treatment combinations to find the best treatment. Treatment T₅ (50 percent RDN + nano-N at 30 DAS + nano-Zn at 30 DAS) was found to be the best treatment which exhibited better growth attributes such as plant height, number of branches, number of leaves and leaf area per plant. Better yield attributes such as pod weight, number of pods per plant, pod yield per plant, haulm yield per plant, pod yield per hectare and haulm yield per hectare were also seen in T₅.