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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />.-.....-.--..---.- .'- - <br /> <br />1622 <br /> <br />designed for those parcels with preliminary <br /> <br /> <br />greater than the off-farm water pumping costs. <br /> <br /> <br />re-evaluated, added to the facilities cost, <br /> <br /> <br />preliminary payment capacity. <br /> <br />payment capacities <br />The pumping cost was <br />and compared to the <br /> <br />To complete the PIA analysis, the cropping pattern and payment <br />capacities were reviewed by the economist taking into account the <br />practicality of the cropping pattern for the particular parcel and <br />any agronomic costs that might be particular to the parcel. Several <br />iterations of this process between the economist and the engineer <br /> <br />were sometimes necessary in order to develop the most economical <br /> <br /> <br />parcel and facilities layout. Those parcels that still exhibited <br /> <br /> <br />positive residual payment capacity after these further analyses were <br /> <br /> <br />then determined to be practicably irrigable. <br /> <br />D.2 SELECTION OF PARCELS FOR OFF-FARM DESIGN <br /> <br /> <br />Parcels to be considered for PIA analysis were identified in the Task <br /> <br /> <br />B Report along with on-farm irrigation costs. The Task B report <br /> <br /> <br />identified irrigation costs for handmove sprinkler, sideroll <br /> <br /> <br />sprinkler, gravity (furrow or basil'll, center pivot, and center pivot <br /> <br /> <br />with sprinkler in the corners. Computer tabulation compared on- <br /> <br /> <br />farm irrigation costs to the crop payment capacity for a corn/soybean <br /> <br /> <br />crop rotation. The tall growth habit of corn rules out sideroll and <br /> <br /> <br />handmove sprinklers. As a result, parcels with a corn/soybean <br /> <br /> <br />rotation were evaluated with gravity and the center pivot system <br /> <br /> <br />options only. <br /> <br />2 <br />