SEALNET | Asian Soil Laboratory Network: 3rd meeting. Manila, Philippines, 23 - 27 September 2019. Presenter: Ms.Win

1. Country Work on QA/QC
The experience of Myanmar
Su Su Win, SEALNET member

2. Soil and Plant Analysis Laboratory
Department of Agricultural Research
Organizational Chart for QC/QA Plan_up-dated in 2019 (- 4 staff taking up MS)
Director Dr Su Su Win
Soil Science, Water Utilization and Agricultural Engineering Division
Section Head Dr Ni Ni Tint
Soil Science Research Section
Section Head Dr. Khin Mar Htay
Water Utilization Research Section
Section Head Mr Kyaw Myint Thein
Agricultural Engineering
Research Section
In-charge of Soil Analysis
Mrs. Khin Myo Thant
Soil and Plant Analysis Laboratory
In- charge of Plant Analysis
Miss Phyoe Phyoe Win
Soil and Plant Analysis Laboratory
Sample Registration and
preparation
• Taking/assessment
• Registration
• Drying
• Grinding
• Store and send to
analyst
Mrs Khin Moe Swe
Miss Yin Yin Aye
Mrs Htay Hlaing + 3
Gravimetric and
Colorimetric
• pH
• EC
• Avai. N/total N
• Avai. P
• SO4-S
• B and Si
• Cl-, CO3=, HCO3-
Mrs Khin Moe Swe
Miss Phyoe Phyoe Win
Mrs Khin Myo Thant + 2
AAS, HPLC, MIR, ISE
(end of 2019 and 2020 ICP-
OES)
• K,Ca,Mg,Na,Fe,Mn,Zn,
Cu,
• Heavy Metals, As Cd. .
• Rapid test (K, NH4+,
NO3+)
Miss Yin Yin Aye
Mrs Htay Hlaing
Miss Phyoe Phyoe Win
Mrs Khin Myo Thant +2
Interpretation and Report
• Evaluation (L/M/H)
• Recommendation
• Mrs Khin Myo Thant
• Miss Phyoe Phyoe Win
• Dr Ni Ni Tint
• Dr Su Su Win

3. Soil and Plant Analysis Laboratory_DAR
Basic things we do need to do!
• Room temperature and
Relative Humidity (RH for
sensitive instruments) are
recorded
• Maintain Room Temperature
25℃ to 30℃
• RH at 45%
• During week days, room
temperature of all rooms are
recorded at 9am, 12noon, and
3pm
• Operation Procedure and
operation record in Myanmar
Language is placed at every
instrument

4. Soil and Plant Analysis Laboratory_DAR
Check samples

5. Soil and Plant Analysis Laboratory_DAR
Check DI water

6. Soil and Plant Analysis Laboratory_DAR
Wash Procedure and Storage
• Rinse/scrubbing with tap water (3 times)
immediately after use
• Soaking : 2% phosphorus free detergent and
water (400 ml detergent+19.6 L of DI)- 2 to 24
hrs
• Soaking solution is changed weekly
• Final rinsing: A series of DI water tub,
submersed in each tub
• Acid bath: bottles used for micro nutrients are
washed with acid bath (10% HCl (2 litre HCl:18
Litre DI)-2 to 24 hrs
• Rinse as above
• Drying : Allow the bottles dry (Air/40℃)

7. • Blank solution: Blank with all reagents used for one protocol
• Duplication: Every batch of analysis, there are two samples
for duplication_ 10% duplication
• RSD for duplication: RSD = (S x 100)/X–)
• Satisfactory if duplicates lie within +/- 3.5%
• External check sample is added every four month in a year
• : +/- 3.5 Upper/lower limit
Soil and Plant Analysis Laboratory_DAR
QA for test results

8. Mean UCL LCL
SD (one
SD)
SD (3.5 SD)
5.24 5.73 4.75 0.14 0.49
+/- 3.5 Upper/lower limit
Soil and Plant Analysis Laboratory_DAR
QA for test results_Example pH

9. Soil and Plant Analysis Laboratory_DAR
results reply to the customers
စိုက်ပ ျိုးရ ျိုး ၊ ရ ျိုးမ ြူရ ျိုး နှင့်် ဆည်ရမ ြောင်ျိုးဝန်ကကျိုးဌြောန
စိုက်ပ ျိုးရ ျိုးသိုရေသနဦျိုးစျိုးဌြောန
ရမ ဆလြော၊ ရ အသိုျိုးခ ရ ျိုး နှင့်် စိုက်ပ ျိုးရ ျိုး အင်ဂ င်နယြော ဌြောနခွဲ
ရ ဆင်ျိုး၊ ရနမပည်ရေြော်။
ဗိုလ် ျိုး န်နိုင်ထန်ျိုး၊ စကခ (၁) ရက ြောက် ွဲမ ြို့နယ် ကညေ်စိုက်ပ ျိုး န် ည် ယ်ထြောျိုးသည့််
ရမ န ူနြော ြောျိုး၏ ဓြောေ်ခွဲရေြို့ ရှခ က်အရပေါ်
သိုျိုးသပ်ခ က် နှင့်် အကကမပ ခ က်
သိုျိုးသပ်ခ က် (Conclusion)
ပပေးပ ို့ထ ေးသညို့ ပ ြေနြေူန ၏ ဓ တခွဲပတွေ့ ရချကအရ၊ ပ ြေနြေူန (၃) ခစလေးသည
သွဲဆနပသ နနေးပ ြေ အြေျ ေးအစ ေး ြစကကပပေး၊ အသငို့အတငို့အငနြကသ ို့ယငပသ ချဉ်/ငန
အကကမပ ခ က် (Suggestion)
ပပေးပ ို့ထ ေးသညို့ ပ ြေနြေူန (၃) ခစလေးပပေါ်တင ကညွှတစကပျ ေးရန ရညရယ ထ ေးပကက ငေး
သရရပါသည။ ကညွှတစကပျ ေးရန အပက ငေးဆေးပသ ပ ြေ

10. စ
ဉ်
ရမ န ူနြော
pH EC Available N Available P Available K Water soluble SO4-S
reaction rating dS/m rating mg/kg rating mg/kg rating mg/kg rating mg/kg rating
၁ A ကငေးထပ 7.7
Moderat
ely
alkaline
3.43
Very
Strongly
Saline
70
Mediu
m
9 Low 191
Mediu
m
875
Very
High
၂
B
ကငေးထပ,
IRSSTN
8.9
Strongly
alkaline
0.49
Very
Slightly
Saline
72
Mediu
m
14
Mediu
m
92 Low 149
Very
High
၃
C
ကငေးထပ၊
သရက ခ
ကနေး
9.2
Strongly
alkaline
0.50
Very
Slightly
Saline
90
Mediu
m
18
Mediu
m
209
Mediu
m
42 High
၄
E
ကငေးထပ၊
ပ လေးက
ငေး
8.4
Moderat
ely
alkaline
0.45
Very
Slightly
Saline
107 High 16
Mediu
m
254 High 128
Very
High
၅
တြေ ကနေး၊
ပတ ငသူ
ပ ြေ ငေး
9.3
Strongly
alkaline
0.72
Very
Slightly
Saline
65
Mediu
m
16
Mediu
m
210
Mediu
m
262
Very
High
၆
သငတနေး
ပဆ င 9.4
Strongly
alkaline
0.60
Very
Slightly
Saline
92 High 15
Mediu
m
166
Mediu
m
138
Very
High
Soil and Plant Analysis Laboratory_DAR
results reply to the customers
ရမ ဆလြောဌြောနစို၊
ရမ ဆလြော၊ ရ အသိုျိုးခ ရ ျိုး နှင့်် စိုက်ပ ျိုးရ ျိုးအင်ဂ င်နယြောဌြောနခွဲ၊ စိုက်ပ ျိုးရ ျိုးသိုရေသနဦျိုးစျိုးဌြောန၊ ရ ဆင်ျိုး၊ ရနမပည်ရေြော်။

11. Analytical item Analytical method Apparatus used
pH 4A1_1:5 soil /water suspension pH meter F-51 HORIBA
Electrical Conductivity, EC 3A1_1:5 soil /water exxtract Cond meter DS-51 HORIBA
Available N Alkaline permanganate method -
Available P 9C_Olsen P - Malachite green UV Vis Spectrophotometer PD-303 UV
Available K 1N Ammonium acetate extraction Atomic Absorption Flame Emission Spectrophotometer AA-6200, SHIMADZU
Water soluble SO4-S Turbidity method UV Vis Spectrophotometer PD-303 UV
Soil Texture Pipette method -
DTPA extractable Zn Diethylene Triamine Penta Acetic acid extraction Atomic Absorption Flame Emission Spectrophotometer AA-6200, SHIMADZU
Exchangeable Ca, Mg and Na 1N Ammonium acetate extraction Atomic Absorption Flame Emission Spectrophotometer AA-6200, SHIMADZU
CO3
= ,HCO3
- and Cl- Titration method -
Sodium adsorption ratio, SAR Ratio of Sodium to Calcium and Magnesium -
Soil and Plant Analysis Laboratory_DAR
results reply to the customers
• Signature of Section Head/Director of Division)
• Signature of Lab Analyst (Checked by in-charge of the lab)

12. Thanks for your attention