H B; A A; A KH
Abstract
In order to investigate the effect of irrigation and straw mulch on yield andyield components of bean, a split-plots experiment with randomizedcomplete block design in three replications was conducted in AstanehAshrafiyeh city during 2012. In this study, irrigation managementtreatments including ...
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In order to investigate the effect of irrigation and straw mulch on yield andyield components of bean, a split-plots experiment with randomizedcomplete block design in three replications was conducted in AstanehAshrafiyeh city during 2012. In this study, irrigation managementtreatments including no irrigation, irrigation frequencies of 6, 12, and18days, and different amounts of straw mulch as 0, 1, 2, and 3 cm thicknesswere examined. The results of the analysis of variance revealed thatirrigation management and different levels of mulch had significant effectson seed yield. But, their interaction was not significant on seed yield. Thetrend of variations indicated that the highest seed yield with 2431.3 kg ha-1was associated with irrigation frequency of 6 days. [n response to the maineffects of mulch levels, the highest average seed yield (1585.6 and 1518.4kg ha-1) was obtained in the 2 and 1 cm treatments, respectively. Also,using straw mulch in irrigation conditions prevented severe seed loss incomparison with no mulch condition. The highest water use efficiencywas in irrigation frequency of 18 days with an average of 0.58 kg m-3.Water use efficiency at straw mulch levels of 1 and 2 cm was observed as0.63 and 0.6 kg m-3, respectively.