*0011708865 *008970929s1997 xx# 000 0 nob *019 $bk *08230$a633.2 *100 $aHaugland, Espen$_136196300 *245 $aHvorfor mislykkes ofte direktesåing i grasmark? *300 $aS. 24-25 : ill. *773 $tNorsk landbruk$gÅrg. 116, nr 8 (1997)$x0332-5474$w(NO-LaBS)927680(tnr) *999 $z9700224011$anorart:9700224011 ^