Sohrabi,S , and Rashed Mohassel,M . "Study the Effect of Different Concentrations of Manure Aqueous Extracts and Sterile and Non-Sterile Manure on Seed germination of Redroot Pigweed and Barnyardgrass" .e31781 , Journal of Iranian Plant Protection Research, 26, 1, 2012, e31781. doi: 10.22067/jpp.v26i1.12658