Productivity and malt quality of barley (Hordeum vulgare L.) in relation to sulphur and zinc nutrition
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Date
2017
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Punjab Agricultural University, Ludhiana
Abstract
A field experiment was conducted to study the “Productivity and malt quality of barley (Hordeum vulgare L.) in relation to sulphur and zinc nutrition” during rabi season 2015-16. The experiment was conducted in split design with 5 combinations of sulphur viz. 0 kg ha-1(S0), 10 kg ha-1 (S10), 20 kg ha-1 (S20), 30 kg ha-1(S30) and 40 kg ha-1 (S40) in main plot and 4 combination of zinc control (Zn0), Soil zinc application (ZnS) as ZnSO4 62.5 Kg ha-1), Foliar zinc application (ZnF) as 0.5% ZnSO4 spray and Soil Zinc + Foliar Zinc (ZnS+F) as ZnSO4 62.5 Kg ha-1 + 0.5% ZnSO4 in sub plot. Sulphur nutrition with 40 kg ha-1 resulted in significantly higher yield attributes that results in higher grain yield (39.43 q ha-1), straw yield (75.80 q ha-1) and biological yield (115.23 q ha-1) and it was statistically at par with 30 kg S ha-1 (38.83, 75.37 and 114.20 q ha-1) but significantly higher than other sulphur treatments. In case of zinc, soil+foliar application resulted in higher yield attributes which increased the grain yield (40.12 q ha-1), straw yield (74.78 q ha-1) and biological yield (114.90 q ha-1) than other zinc treatments. Sulphur nutrition with 40 kg ha-1 significantly increased the grain sulphur content (0.285%), zinc content (39.0 ppm), protein content (11.4%), protein yield (450.2 kg ha-1), hectoliter weight (62.4 kg hl-1), malt yield (84.1%) and hot water extract of dry weight malt and barley (82.0%, 72.0%) but friability (75.6%) was found to be same as in 30 kg ha-1. Zinc nutrition through soil+foliar resulted in significantly higher grain sulphur content (0.223%), zinc content (56.7 ppm ), protein content (11.2%), protein yield (450.4 kg ha-1), hectoliter weight (61.6 kg hl-1), malt yield (84.2%), hot water extract of dry weight malt and barley (78.2%, 70.6%) and friability (75.0%) than foliar application, soil application and control.
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