TY - JOUR AU - farajpoor, arash AU - kahneh, ehsan TI - Comparison of four poplar clones influence on availability of some soil nutrients in Safrabasteh of Astan-e-Ashrafieh Arash Farajpour and Ehsan Kahneh JO - Journal of Renewable Natural Resources Research VL - 3 IS - 3 SP - 1 EP - 8 PY - 2012 DO - ER -