Effect of Humic acid on the Growth Attributes of Wheat (Triticum aestivum L.) Crop in sandy loam soil of Gwalior region of Madhya Pradesh, India

Abstract

A field experiment was conducted during Rabi season 2019-2020 to study the Effect of humic acid on the growth and yield attributes of wheat crop in sandy loam soil of Gwalior region of Madhya Pradesh, on Crop Research Centre, School of Agriculture (SoAg.), ITM University Gwalior M.P., India. The experiment was laid out in a Factorial Randomized Block design (F-RBD) replicated three times with three levels of Recommended Dose of Fertilizer (RDF), i.e. (RDF @ 0, 50 and 100 %) and two levels of Humic Acid (HA) (HA @ 500 ppm and 1250 ppm) thereby making eight treatment combinations with 24 plots. Treatments were; T1- Absolute control, T2 -RDF @ 100 %, T3-RDF @ 0 % +HA1 @ 500 ppm, T4-RDF @ 0 % + HA2 @ 1250 ppm, T5-RDF @ 50 % +HA1 @ 500 ppm, T6-RDF @ 50 % +HA2 @ 1250 ppm, T7-RDF @ 100 % +HA1 @ 500 ppm and T8-RDF @ 100 % + HA2 @ 1250 ppm. Among the different levels of Recommended Dose of Fertilizer (RDF) and humic acid were recorded the highest values for all parameters viz; plant population m-2, plant height (cm), numbers of tillers per m-2, numbers of leaves per culm-2, root length (cm), dry weight (g) and fresh weight (g) of the plant under the treatments T8- RDF @ 100 % + HA2 @ 1250 ppm concentration. The means value for all parameters are; plant population m-2 (16.86 and 16.00 at 30 and 60 DAS), plant height (10.03, 58.05 and 76.08 cm at 30, 60 and 90 DAS), numbers of tillers per m-2 (5.88 and 7.02 at 30 and 60 DAS), numbers of leaves per culm-2 (3.90, 4.94 and 3.59 at 30, 60 and 90 DAS), Root length -7.01, 9.00, 11.06 and 12.03 cm, Dry weight of plant-1 0.39, 5.31 and 37.54 g and Fresh weight of plant-1 4.01, 40.01 and 350.71 g in 30, 60 90 DAS and harvest stage.