The document describes the equipment and procedures used for soil sampling and analysis. It details 3 types of soil sampling devices - the Duroprob 60 and STIHL BT 121 manual augers, and the Eijkelkamp manual soil sampler. GPS navigation and mapping software, such as Mueller Elektronik Track Guide 2 and Agro Office, are used to map fields and target soil sample points. Soil samples are analyzed to create interactive maps visualizing levels of nutrients like nitrogen, phosphorus, and potassium to inform variable rate fertilizer application.

1. ISO 9001
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Field Mapping, Soil Sampling and Analyses
1.Equipment in use
2.Sampling procedures
3.Software Agro Office- interpretation of the results

2. Sampling Procedure
Equipment:
1. Sampling devices :
Duroprob 60
-Control of the unit is done by a remote control unit with a counter
-Impact-ram system. The boring rod is hammered up to 75 cm deep
into the ground by a high frequency (2500 blows/min.) hydraulic hammer
-Boring rod is rotated and pulled up 30 cm .The soil sample from
the range of 0-30 cm is put into Container I
-The soil sample in the range of 30 – 60 cm is placed into
Container II by the automatic movement of two containers
-The remaining 15 cm is discarded
- It’s also possible to extract soil samples from 25-30 cm deep without layer
separation. In this case a mixture of 15 single bore samples is filled into
each container
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3. Duroprob 60
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4. Duroprob 60
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-Избор на схема за пробовземане
-Определяне на точките за пробовземане
-Дълбочина на пробовземане
-Вид и количество на пробите
-Тип на техничесткото средство:сонда,сведло, лопата...

5. Duroprob 60
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-Избор на схема за пробовземане
-Определяне на точките за пробовземане
-Дълбочина на пробовземане
-Вид и количество на пробите
-Тип на техничесткото средство:сонда,сведло, лопата...

6. Sampling Procedure
Equipment:
1. Sampling devices :
STIHL BT 121
- Control of the unit is done by a handles , manually.
-The boring rod drilled up to 60 cm deep
- The device is powered by 1,8 HP two strokes petrol engine
-Different types of rods’ thickness
- Huge soil capacity drilling rod
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7. STIHL BT 121
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8. STIHL BT 121
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9. Sampling Procedure
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Equipment:
1. Sampling devices :
Manual soil sampler Eijelkamp
-Two types of handles for easy drilling , “ Bayonet type” connection between
the elements for faster assembling
-Variable range of the augers for different soil types
-Very compact metal reinforced holder of the parts
-Suitable for all kind of terrains

10. Manual soil sampler Eijkelkamp
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11. Manual soil sampler Eijkelkamp
Auger types
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12. Sampling Procedure
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Equipment:
2. Pick Up Vehicles
- Nissan Navara- 175 Hp diesel engine
- Great Wall Steed 5- 150 Hp diesel engine

13. Sampling Procedure
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Equipment:
3. GPS mapping system:
GPS Navigation system: Mapping Software:
+
Мueller Elektronik Agro Office®
Track Guide 2

14. Sampling Procedure
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Equipment:
3. GPS Navigation system:
Mueller Elektronik Track Guide 2, Germany
- 4.5 ‘’ display
- Type of satellite system - GPS or GLONASS
- Absolute accuracy of the system: approx. 40 cm, provided by EGNOS –
free DGPS correction signal for Europe
- Mapping the boundaries of the fields and generation of SHP file
- Displaying the target sampling points (as cones)
- Variable rate application control - option for implement

15. Sampling Procedure
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Equipment:
3. GPS Navigation system:
Mueller Elektronik Track Guide 2

16. Sampling Procedure
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Equipment:
4. Mapping Software:
Agro Office® from MicroAccount, Varna
- Field boundary mapping options: (1) draw manually on satellite pictures, (2)
import form the GPS system or (3) upload from Governmental Agency for
Direct Payments in Agricultural sector
- Create target soil sample points within the field boundary
- Transfer the boundary and the soil sample points from the software to the
GPS System using a USB memory stick (flash drive)
- Collect soil samples from the target points with 40 cm accuracy using the
GPS system
- Enter the laboratory analyses results into the software
- Visualization of the soil analyses results and display an interactive soil map
- Visualization of the saved maps from John Deere and Claas harvester
combines
- In the future: create prescription maps for variable rate application (VRA)
capable equipment (for precise fertilizing)

17. Sampling Procedure
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Equipment:
4. Mapping Software Agro Office ®: Nitrogen map

18. Sampling Procedure
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Equipment:
4. Mapping Software Agro Office ®: Phosphorus map

19. Sampling Procedure
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Equipment:
4. Mapping Software Agro Office ®: Potassium map

20. Sampling Procedure
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Equipment:
4. Mapping Software Agro Office ®: Soil sample points list

21. Sampling Procedure
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Equipment:
4. Mapping Software Agro Office ®: Soil sample details

22. Sampling Procedure
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Equipment:
4. Mapping Software Agro Office ®: Field details

23. Sampling Procedure
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Soil analysis activities matrix
4. Organization between companies:

24. Thanks for watching
SGS Bulgaria Ltd, branch office Varna +359-52-358080
Radoslav Tsviatkov +359 888 138 767
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