Effect of agrochemicals and irrigation levels on growth and yield of barley (Hordeum vulgare L.)

A field experiment was conducted at RRS, Bawal, CCSHAU, Hisar during Rabi, 2019–2020 to study the growth and development of barley under various irrigation levels as affected by agrochemicals. The experiment was conducted in split plot design with three irrigation levels in main plot and six agrochemical levels in subplot. The main plot treatments included- no irrigation, one irrigation and two irrigation. The subplot treatments were- control, seed treatment with Tragacanth katira @ 100 g kg⁻¹ seed, soil application with Tragacanth katira @ 5 kg ha⁻¹, foliar application of salicylic acid @ 200 ppm, soil application with Tragacanth katira @ 2.5 kg ha⁻¹ + foliar spray with salicylic acid @ 200 ppm and foliar application with potassium nitrate @ 1%. Number of days taken to physiological maturity, plant height, shoot dry matter accumulation at harvest and grain yield was significantly higher with two irrigation and soil application of Tragacanth katira + foliar spray of salicylic acid among irrigation levels and agrochemicals, respectively. Days to 50% flowering were significantly lower with no irrigation compared to one and two irrigation with no significant difference among various agrochemicals.