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Onbekend Onbekend | Picture made by PieterA
Sept. 29, 2016 Photo of a spray track in winter wheat. Pictures like this make a farmer investing in rtk-gps happy. In about 2008, our contractor bought a GPS kit from Trimble. We planted tulips with a king planter. In front of the tractor we then often had a roto harrow or vibratory cultivator. This 1.50 combination was very sensitive to "pulling to 1 side" in freshly plowed soil. This occurred especially when one wheel ran through the fixed track of the previous vessel and the other through the loose soil. The planter then sometimes ran up to 20 cm out of track. Our solution was to rotor harrow with a separate tractor at 3 m in front and then plant with the planter tractor through exactly the same tracks behind it, planting first canal 2, then canal 1, then 4, then 3, then 6 etc.etc. This went reasonably well with markers, but we were still very glad that the contractor in our neighborhood invested in GPS. This went a lot more precisely and relaxed. The following year (I think 2009) our neighbor bought an rtk-gps set. From then on, his tractor drove in front of the rotor harrow when planting tulips. When the late September/early October 2014 was too wet and it rained every day and the neighbor himself still had a lot of wheat to sow and we still had to plant all the tulips we decided to buy an Ag-leader set ourselves. We liked this so much that the following year we immediately bought a 2nd set. These 2 are interchangeable, nowadays on 5 tractors. When we have GPS plowed and GPS sowed the wheat, I prefer to drive in the tracks immediately. Then when it rains the tracks become firm instead of mushy. Calculating and measuring where to place the tramlines used to be quite a job. Nowadays it is much easier and the tracks are often more straight.
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