(trustee brings adversary complaint to avoid claim of alleged secured creditor asserting claim under financing statement that did not comply with Neb. Rev. Stat. Sec.9-502; trustee's motion for summary judgment granted; financing statement did not properly identify collateral in which security interest claimed and amended financing statement constituted preferential transfer; creditor's claims arose from two farm leases and creditor had been granted administrative priority claim of $181,275.80 for rent payments that came due post-petition; financing statements did not specify that creditor was placing lien on crops grown on the real estate to secure cash rent owed to creditor).