Impact of Organic Manure and Irrigation Amounts on Barley Quality

Abstract

           In order to investigate the impact of irrigation levels and organic manure on the quality of barley (Hordeum vulgare, L.) cv., Giza 123, a field experiment was carried out in the Abu Hadi district of Sirte city during the winter of 2022–2023. Two factors in a randomized block design were a factorial combination of three irrigation levels (100, 50, and 25 percent) and four rates of organic manure (control, 20, 40, and 60 m3/fed.) with three replications. Plant height, leaf area, total chlorophyll, spike length, number of spikes/m2, and number of grains/spike were among the vegetative development characteristics that were studied, as were quality characteristics including grain weight/spike, 1000-grain weight, grain yield, straw yield, protein, and carbohydrate content.  In contrast to control treatments, which showed the lowest values of these features, the obtained data showed that raising irrigation levels up to 100% considerably boosted all vegetative growth and quality attributes under study. The highest values of all vegetative growth, grains weight/spike, 1000-grain weight, grain yield, protein, and carbohydrates, on the other hand, were recorded when organic manure was increased to 60 m3/fed. In contrast, control treatments produced the highest mean values of straw yield but the lowest mean values of grains weight/spike, 1000-grain weight, grain yield, protein, and carbohydrates, respectively. This study examined the effects of irrigation levels and organic manure on all vegetative growth. The quality of barley grains, their weight per spike, their 1000-grain weight, their grain yield, their protein, and their carbohydrates were all highly significant, but total chlorophyll, grains weight per spike, protein, and carbohydrates were not.