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| I'm thinking of using a WAAS GPS system and some type of steering assist to plant alfalfa on relatively flat-terrain circle-pivot fields.
Do not need repeatability. Skips are far worse than overlap. Standard current 'manual drive" practice is to overlap about 18" w/20 ft drill. Crop stays in field for several years--so mistakes (skips) come back to haunt.
What percent of the time will I be "off" 8"? 6"? less than 6-8"? One problem would be that if I were off 8" (say to the west) on one pass, then the next pass had me off 8" the other direction (say to the east), there would be a 10" skip---not acceptable of it happened very much at all. What percent of the time would this happen?
If the GPS is set for a 19.5' swath, in theory, the seed savings will pay for the system in short order. | |
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Just what does +/- 6-8" accuracy mean?
