33
Marchesan Implementos e Máquinas Agrícolas “TATU” S.A.
STP²
Adjustments and operations
Important
Practical test of seed and fertilizer distribution
The data on the previous tables (seed and fertilizer) can vary due to several factors.
Therefore, carefully observe the following procedures.
The most indicated way to assess the amount of seed and fertilizer rate is performing
the test on the same field the plantation will take place, following these steps:
• Whenever possible, use the same tractor and operator to perform the plantation.
• Mark the distance for the test. Fertilizer table example: 50 linear meters.
• Adjust the pressure of the row units over the soil, according to the instructions on
page 36.
• Fill up the planter hoppers at least to the half and then drive some meters to
completely fill the meterings before entering in the delimited area.
• Place the collection bags in the fertilizer dispensers (preferably use plastic bags).
In the seed dispensers, use cotton waste to hinder the exits.
• Drive the tractor in the delimited space, using the same speed that will be used in
the whole plantation.
Recommended speeds:
5 to 6 km/h
for corn and sunflower plantation.
6 km/h
for bean/sorghum/acid delinted cotton plantation.
7 km/h
for soybean plantation.
• Weigh the fertilizer contained in the bags and compare it to the tables on the previous
pages.
(Grams in 50 meters on each row unit).
• Remove the cotton waste of the seed dispensers, picking up the seeds for counting.
By doing so, it is also possible to check if there is any damage on them.
• If necessary, redo the tests changing the adjustments.
• After getting the desired amount and still in the field, move the tractor in the same
speed, leaving the fertilizer and seed to reach the soil for better verifying the distribution
uniformity. Check the depth adjustment on pages 35 and 36.
• The working speed affects the uniform seed distribution.
• When there is a change in the batch of seeds as well as in the
fertilizer manufacturer, everything must be assessed again.
• It is important to assess all adjustments again after the first day of
work.
ATTENTION
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