Journal Issue:
Iowa Farm Science: Volume 11, Issue 7
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Using improved crop varieties is one of the best ways of getting the most for your money. Here are the crop varieties recommended for 1957. Each is backed by long and painstaking experiments and research.
Plant diseases have damaged our crops just about as long as crops have been grown. It's not likely that 1957 will be an exception. How badly they'll damage this year's crops depends a lot on the weather coming up.
Your "bank account" of soil moisture can't be "overdrawn" - nature won't advance the funds. Your account for 1957 crops depends on the current balance plus any amount of moisture added, absorbed and held.
Agricultural engineers at Iowa State College get many requests for a method to estimate the amount of tractor fuel needed for various field operations. There just isn't any really simple way to do this. But here's some help: