Effect of Glycyrrhiza glabra on Soil-Water Properties, Aggregates Stability, and Growth, Yield  Allium sativum L

	Effect of Glycyrrhiza glabra on Soil-Water Properties, Aggregates Stability, and Growth, Yield Allium sativum L
AL-TAQANI
Article 1, Volume 24, Issue 1, 2011, Pages 53-65
Abstract
A field experiment was carried out at research station of Agriculture College, Abu-Ghraib during the seasons 2005-2006 and 2006-2007 to study the role of Glycyrrhiza glabra using four levels 0, 0.625, 1.25 and 2.5 T. D-1 on aggregates stability, soil-water characteristics, growth, and yield of Allium sativum L.. Results showed that the applying of Glycyrrhiza glabra during two seasons increased the mean weight diameter (MWD) by (5.432 and 5.117 mm) when applied at 2.5 T. D-1. While the percentages of increase were 50.00, 80.35, 87.46% in first season and 51.44, 81.53, 88.49% in second season at levels of 0.625, 1.25 and 2.5 T. D-1 respectively. In addition, hydraulic conductivity were increased by 51.35, 69.57, 75.96% compared to control treatment in first season and 60.68, 76.05 and 81.15% in second season at levels 0.625, 1.25 and 2.5 T. D-1 respectively. All curves of cumulative infiltration have similar trained in all treatment, and they have a following order: 2.5 T. D-1>1.25 T. D-1>0.625 T. D-1>control treatment The applying of Glycyrrhiza glabra to the soil increased the weight of shoot, root of plant and yield Allium sativum. The highest significant Allium sativum yield was 21.96 and 20.32 ton.h-1 obtaining at level of 2.5 of Glycyrrhiza glabra added in first and second season respectively; compared to 12.76 and 11.64 ton h-1 of control treatment, respectively.

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