The field experiment was conducted during rabi season of 2017-18 at the Instructional Cum Research Farm, under all India Coordinated Research Project on MULLaRP, Department of Agronomy, College of Agriculture, I.G.K.V. Raipur (CG.) The use of growth regulators is becoming popular to enhance crop productivity and varieties of such substances are available in the markets which are being utilized for crop production. Foliar application should be timed to provide needed nutrients during the yield determining growth stages. Plant growth regulators are the chemicals which influence the plant growth when applied in very minute quantity. The experiment was laid out in Strip Plot Design having the combination of fourteen treatments and three replications. The treatment consisted of seven foliar nutrients spray and two irrigation levels. The experiment was comprised of factor A. Horizontal plot (Irrigation level-2) I₁-One irrigation (35 DAS), I₂-Two irrigation (35 and 65 DAS) B. Vertical plot (Foliar Spray-7) F₁-Water Spray, F₂-Nitrobenzene @ 0.3%, F₃-N: P: K:: 19:19:19 @ 1% solution, F₄-Multi micro nutrient (Fe, Mn, Zn, B, Cu, Mo) @ 0.1%, F₅-Plant growth hormones mixture (Cytokinins and Enzymes) @ 0.15%, F₆-N: P: K:: 19:19:19:@ 1% + Multi micro nutrient (Fe, Mn, Zn, B, Cu, Mo) @ 0.1%, F₇-N: P: K:: 19:19:19 + Multi micro nutrients + Plant growth hormones. Significantly maximum N, P and K uptake in seed, stover as well as in total was recorded with I₂-Two irrigations followed by I₁-One irrigation. As regards to foliar spray, significantly higher N, P and K uptake in seed, stover and in total was noted under F₇-N: P: K:: 19:19:19 + MMN + PGHM as compared to others, however, it was at par to treatmentsF₆- N: P: K:: 19:19:19: + MMN,F₃-N: P: K:: 19:19:19 @ 1% and F₄-Multi Micro Nutrients. Between the irrigation levels, significantly higher water use efficiency (86.79 kg ha^-1cm) was recorded with I₁-One irrigation as compared to I₂-Two irrigation (66.06 kg ha^-1cm). As regards to the foliar spray of micronutrients and growth hormones, maximum water use efficiency (89.56 kg ha^-1cm) was recorded with F₇- N: P: K:: 19:19:19 + MMN + PGHM. However, it was at par to treatment F₆-N: P: K:: 19:19:19 + MMN (82.13 kg ha^-1). The minimum water use efficiency (58.03 kg ha^-1cm) was observed with F₁- Control (water spray).

Download this article as