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[ 1 ] - Investigation of rain fed perennial range plant instead of annual species for ecological control of soil erosion

One of the most important waysto decrease surface evorsion and increase forgie production is cultration of When we cultivate corns and we have not any good yields we can change the corn species with perennial range species. It causes to decrease surface erosion and increase forage production. The goal of this study is assessing of unsuccessful reasons in forage rain fed cultivation of Onobrychi...