VRT.. Echelon or Farmers Edge

[Klause]

JDGreen, here's some info for you:

<a href="http://www.ag.ndsu.edu/pubs/plantsci/soilfert/sf1176-2.pdf"/>

[Klause]

[URL="http://www.ag.ndsu.edu/pubs/plantsci/soilfert/sf1176-2.pdf"]ND EC Zone Info[/URL]

[bgmb]

Can someone explain to me what an EC machine does and how it makes zones?

My understanding is that it measures clay content (texture) of your soil. Can it be thrown off by varying PH levels?

[furrowtickler]

We are going to try a different path - keep seeding requirements basic then VR top dressing and or foliar feeding/ fungicide on the crop that is there at the time not what I wish at or before seeding . Even a good BR program can get washed away after seeding, and yeild maps from the previous year can prove fruitless if Mother Nature floods you good crop areas . Right or wrong that's the angle we are going to try with VR .
Agree with others that sectional control will pay somewhat regardless of growing season anonomalies

[seabass]

Veris measures electrical conductivity. Sandy soil gives different readings than clay. U do 2 different depths so u can determine productivity of land in upper soil level and then lower levels. Veris also works better with wetter soil. Readings can be skewed if to dry. Our cost was 11 bucks an acre using RTK so it is more site specific and can also use for drainage purposes. Cost may vary on all that u are looking to find out, how wide u wanna grid the field and how smooth fields are. If smooth u can cover a lot of ground in a day. We did 700 in one day going 30 feet wide.

[Klause]

EC measures the amount of electricity conducted by soil.

Amount of moisture, amount of certain nutrients, salinity, alkalinity all have different readings.

The amount of moisture in a field will chancge the readings.


EC is also how you measure the amount of moisture in the soil, the wetter it is the higher the conductivity. I have sensors laying here somewhere...

[Klause]

This is what $45 worth of EC equipment does.

One is an EC sensor, the other a salinity. Third one detects soil moisture.


The idea is to remove soil moisture and salinity from the mapping process.


&lt;img src=&quot;http://i896.photobucket.com/albums/ac163/HerrnbockFarms/output_zps5fa2712x.jpg&quot; border=&quot;0&quot; alt=&quot; photo output_zps5fa2712x.jpg&quot;/&gt;

[seabass]

I believe it is the water holding capacity of the soil Klause