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How to Make Your Planter Dance

Meter Set up & Seed Size

Most corn seed meters are sigulated meters, rather than volumetric meters that are typically found for planting crops such as wheat, oats and canola. Important things to look for in a meter are its ability to handle a wide variety of crop seed, seed sizes (i.e. small, medium and large), and seed shapes (flat vs. round). The two main meters used in Western Canada are finger pick-up and vacuum meters.

Finger Pick-up & Brush Air & Vacuum
Advantages
  • Low cost
  • Lower maintence
  • No additional power need to run vacuum fan, etc.
  • Increased planting accuracy
  • Simple design that is easy to understand & adjust on your own
  • Easy to add precision parts to track in real time your planting accuracy
Disadvantages
  • Require regular maintenance (brushes & seed belt)
  • Hoses, fans & seals can leak, which affects performance
  • Less adaptable to different seed sizes & shapes
  • Higher sensitivity to heavy winds, steep slopes & rough fields

Get the Planter Level

Leveling the planer should be one of our first adjustments, as the levelness of our planter affects every other adjustment we are going to make. On today's new modern planters we want to be checking the level of the row unit or the actual frame that the row units are connected to. For the planter to be ‘level’ it must be parallel to the ground.

  • Planter boxes & frame level
  • Even down pressure on closing wheels
  • Hitch level

Check your Seed Discs

Disc openers are crucial for proper seed bed preparation. Although the openers can continue to be sharp enough to cut a seed bed trench even when they are worn, if the circumference of the one opener is different from the rest your planter, seed depth will not be consistent. The seed disc needs to make a true ‘V’ in the trench for the seed to fall into. Worn out discs leave a ‘W’, which shallows up the seed deep and creates air pockets around the seed.

For example, John Deere’s disc openers are 15" brand new - once they are worn down to even 14.5”, they need to be replaced! 

How to Set Your Disc Openers

  • Use a piece of paper and slide one in from the top, then one in from the bottom
  • The distance between the paper should be 1 ¾" to 2"
  • If not – add shims to adjust more or less

Row Cleaner

Stronger, healthier corn and increasing corn populations are creating more residue that takes longer to naturally decompose. In addition to this, climate can also play a role in decomposition depending on environmental factors in your growing area. The most efficient way to combat this is the addition of row cleaners on your planter. If you do have row cleaners on your planter, they need to be set properly.

  • Row cleaners should consistently ride on the top of the soil only penetrating only when they are moving debris out of the row. 
  • If set to deep:
    • Creates a trench for water to sit
    • Creates uneven planting depths  
  • If set to shallow:
    • Creates hair pinning which contributes to improper seed-to-soil contact & increases cold injury potential
    • Creates moisture loss

Q: Are my row cleaners for tillage purpose?

A: NO, row cleaners are NOT a tillage tool. A common misconception about row cleaners is that they do or should do some tillage. That is FALSE, a row cleaner should NOT move or till the soil.

Down Pressure

Always check with the planter in down position. Improper down pressure will result in the side wall being one of two ways: (1) too firm or (2) too soft.

  1. If our gauge wheels are set too firm, they are going to create a trench and pack the furrow to tightly. This is going to create hatched roots and plants that can’t search out what they need.
  2. If our gauge wheels are set too soft there is going to be enough pressure to pack the seed bed wall around the seed. This is going to result in dry soil falling in on top of the seed which can create inconsistent seed depth and poor seed to soil contact.

**You should be able to turn the gauge wheel slightly when you planter is in the down position**

Seed Depth Adjustment

The goal is to plant every seed at an even seed depth in consistent soils. With the optimal depth being 2” deep. Uneven planting depths lead to uneven emergence which can lead to competition amongst the corn plants which directly affects yield per acre.

To set the depth on your planter

  1. Raise machine to remove weight from gauge wheels.
  2. Lift depth-adjusting handle (A). Move it forward to decrease planting depth or rearward to increase planting depth. If small increments are desired, "walk" handle from side to side. Each adjusting position changes planting depth 6 mm (1/4 in.).
  3. Adjust all rows to the same initial setting.
  4. Lower machine and drive a short distance at normal planting speed
  5. Check planting depth on each row.
    1. Dig down vertically through soil to locate seed.
    2. Measure the depth (A) from seed to top of soil profile (B).

References & Additional Resources:

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