Despite its long tradition in the economic literature, there is no acceptable economic evaluation of Iranian public agricultural R&D policy mainly because of the lack of reliable estimates of supply shift parameter. Sugarbeet is chosen as a case for the estimation of the parameter using the...

Dormant seeding refers to sowing spring crop species in fall. In the spring, seedlings start growing and the crop is established before spring sowing is normally completed. A dormant-seeded crop can establish quickly in spring and may escape from early season drought. A study was conducted to...