For Schedule Proficiency Test for Agriculture 2020, we us available comodity sample and parameters as follows:
Fertilizer (Pupuk)
- Pupuk Urea: Kadar Air, Nitrogen, Kadar Biuret
- Pupuk NPK: Kadar Air, Nitrogen, Fosfat, Kalium sebagai (K2O)
- Pupuk Organik: pH, Nitrogen, Fosfor, Kalium
- Pupuk an Organik I: Besi, Tembaga, Mangan, Seng (Zn)
- Pupuk an Organik II:Timbal, Arsen, Mercury, Cobalt
Ground (Tanah)
- Tanah: pH (H2O), pH (KCL), Natrium, Kalsium, Magnesium
Leaf (Daun)
- Daun I: Kalium, Kalsium, Magnesium, Alumunium, Besi
- Daun II: Cadmium, Seng, Tembaga, Timbal, Mangan
- Daun/Jaringan Tanaman: Sulfur, Nitrogen, Fosfor, Nitrat, Silikat
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