Effect of PROM and Nano Urea on Growth and Yield of Pearl Millet

Abstract

PROM is the alternate source of the phosphatic fertilizers. It is well documented that during composting process of organic waste a variety of organic acids are released. The interaction of organic acids released during composting results in P solubilization from RP for plant uptake. The present study aimed to determine the effect of PROM and nano urea on growth and yield of pearlmillet. A field experiment was conducted during kharif-rabi, 2022-23 and 2023-24 at the Agronomy Instruction Farm, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat, India. The study comprised fifteen treatment combinations involving five levels PROM and three treatments of nano urea, tested in a randomized block design with factorial concept in three replications. Bartlett’s test was applied to examine the homogeneity of variance due to error. The variance obtained due to season x treatment components were tested against joint estimate of error variance with the objective to find out whether season x treatment interaction. The pooled results indicated that application of 200% RDP through PROM recorded significantly higher growth, yield attributes and yield parameters viz., plant height at 45 DAS and at harvest, effective tillers per plant, earhead length, grain and straw yields of pearlmillet. Nano urea spray did not exert any significant on plant height, number of effective tillers per plant and earhead length of peralmillet, but the application of 100% RDN through neem coated urea (N1) gave significantly the highest plant height at 45 and at harvest and earhead length of pearlmillet. The interaction effect of PROM and nano urea did not exert any significant effect on plant height at 45 DAS and at harvest, number of effective tillers per plant and earhead length of pearlmillet.The effectiveness of nano urea is lower compared to full nitrogen application through neem-coated urea. Thus, for maximizing pearlmillet yield, higher doses of PROM coupled with adequate nitrogen via NCU are recommended.