(a) Except as otherwise provided in subsections (c), (d), and (e) of this section, if the requirements of subsection (b) of this section are satisfied, a perfected production-money security interest in production-money crops has priority over a conflicting security interest in the same crops and, except as otherwise provided in section 9-327, also has priority in their identifiable proceeds.
(b) A production-money security interest has priority under subsection (a) of this section if:
(1) The production-money security interest is perfected by filing when the production-money secured party first gives new value to enable the debtor to produce the crops;