To study the effects of different amounts of vermicompost and bio super absorbent polymer on the grain yield and yield components of two cultivars of dryland checkpea a factorial experiment in a randomized completed block design with three replications was employed in agriculture college,Lorestan university in 2013-2014.The first factor was vermicompost in three levels of non-use (control),10 and 15 t/ha.The second factor was bio super absorbent polymer in three levels of non-use (control),150 and 250 Kg/ha. The third factor was to cultivars of breeding checkpea whose name were Arman and Azad The results showed that the effects of combination of bio superabsorbent vermicompost on grain yield, root volume, root weight and the total root length and root nodule number was significant and had no significant effect on root. The results of the mean comparison among the triple interactions effects vermicompost in bio super absorbent in cultivar showed the highest grain yield was related to treatments (application of 15 t/ha vermicompost and non-using bio super absorbent in Azad and Arman cultivarsby amount 1636.77 and 1636.39 Kg/ha),respectively.Thus with attention to non significant different between its,cultivars recommended for cultivation in climate conditions under experiment.
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