Effect of Different Levels of Humic Acid and Salicylic Acid on Yield ParameterS and Yield of Cowpea (Vigna Unguiculata)
A. K. Singh *
Department of Crop Physiology, Aacharya Narendra Deva University of Agriculture and Technology, Ayodhya, India.
Mubeen
Faculty of Agriculture, Mohammad Ali Jauhar University, Rampur, India.
Kaleem
Department of Crop Physiology, Aacharya Narendra Deva University of Agriculture and Technology, Ayodhya, India.
Nadeem Khan
Department of Agriculture, Integral Institute of Agricultural Science and Technology, Integral University, Lucknow, Uttar Pradesh, 226026, India.
Dhruvendra Singh Sachan
Department of Agronomy, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur, Uttar Pradesh, 208002, India.
Mohd. Mued
Department of Agriculture, Integral Institute of Agricultural Science and Technology, Integral University, Lucknow, Uttar Pradesh, 226026, India.
*Author to whom correspondence should be addressed.
Abstract
An investigation was carried out at Narendra Deva University of Agriculture & Technology, Faizabad (U.P.) during Kharif season of 2013 to find out the effect of different levels of humic acid and salicylic acid on yield contributing parameters and yield of cowpea. The design of the experiment was Randomized Block Design and comprises of six treatments replicated thrice. The maximum pod per plant was recorded with T5 (Foliar spray of humic acid (26 ml/liter water) and 0.2% salicylic acid at 35, 55 and 65 DAS) while minimum number of pods per plant recorded in T2 (Foliar spray of humic acid (26 ml/liter water) at 25 DAS and 0.2% salicylic acid 55 DAS). Maximum pod length (75.92 cm), Maximum number of seed per pod (13.67) and 100 seed weight (13.29 g) was recorded in T5, followed by T4. The maximum seed yield per plant of 13.10 g and harvest index (42.28 %) was reported with the application of humic acid @ (26 ml/liter water) and 0.2% salicylic acid at 35, 55 and 65 DAS.
Keywords: Salicylic acid, foliar, yield parameters, humic acid, yield of cowpea, soil organic matter