Analytical Services

Chemistry, Tea Technology, Pesticide Residue, Pathology and Physiology Divisions at TRI and Chemical Laboratory, Regional Centre, Coonoor extend comprehensive analytical services while laboratories in other regional centres possess very limited analytical facilities. TRI also carry out field bioefficacy trials and residue quantification in tea necessary for the registration of pesticides, fungicides, herbicides and plant growth regulators.

Service to Small Growers

The regional centres of UPASI TRF offer services to small tea growers by extending free advice and analytical services. In the Nilgiris where the small growers are concentrated, the UPASI KVK takes up this work. Help is also extended to government farms and tribal cooperatives. The UPASI KVK extends its services to the small growers, bought leaf factories and Indcoserve factories in the Nilgiris.

Facilities are available for the following analysis:

C.Soil Amendments

pH & EC K(MnO4 -N)
Organic matter (OM) pH, EC, OM, P, K, Ca & Mg
pH, EC & OM Mechanical analysis of soils
Available & Exchangeable nutrients K, Ca & Mg
pH, EC, OM & K Micronutrients (Zn, Mn, Fe, Cu)
pH, EC, OM & P Nitrite
pH, EC, OM, P & Mg pH, EC, P, Mg
OM, P / P& K OM,P,K
pH, EC, OM, P& K Nitrate N or Ammoniacal N
pH, EC, OM, P, Ca & Mg pH,EC,P
pH, EC, OM, K, Ca & Mg pH,EC,K
pH, EC, OM, Ca & Mg Water holding capacity / Field capacity of soils
P, K, Ca & Mg Cation exchange capacity (CEC)
Exch. Sulphur Degree of potassium saturation (DKS)
Total N Bulk density
Total K Phosphorus and Potassium fixing capacity for soils
pH, EC, P, Ca & Mg Eelworm estimation
Available P & Total P  
Identification-qualitative tests Organic manures- pH, EC, C, N, P & K
Quantitative analysis of straight fertilisers Organic manure – C, N, P, K
Quantitative N, K and Mg analysis Organic manure pH, EC, C, N, P, K, Ca, Mg
Quantitative N and K analysis Micro nutrient /S in Organic manure
Quantitative N, P and K analysis Nursery Mixture N, P, K, Mg & Zn
Quantitative N, P, K and Mg analysis Magnesium silicate
N, P, K, Mg and Ca Purity tests of Zinc sulphate(Comprehensive on all aspects with special reference to tea)
Sodium only / K only Magnesium sulphate /Manganese sulphate and Boric acid
Biuret in urea Secondary and micronutrients-microfood fertilizers Zn, Mn, B, Na, Fe & Mg
C alone/Nitrogen content in organic manure Zn, Mn, Fe & Cu in fertilizers
Organic manure-C, N & C/N alone Multi K (KNO3)
Organic manures-N, P & K/pH, EC, C & N/C, N & Moisture  
Liming materials Iron Pyrite (S)
Aluminium sulphate Calcium oxide
Gypsum (Purity & S)  
Copper oxy chloride formulation Copper sulphate
Nickel chloride formulation Hexaconazole formulation
Content of formulation 
Content of formulation 
Purity tests, not comprehensive on all aspects but with special reference to tea Micronutrients content in leaf sample
Ash samples 2,4-D( qualitative)
Wetting agents EC and surface tension only Water quality(pH, EC, HC03, C03, Ca, Mg and Na)
Moisture content Water (pH, EC, Ca, Mg, Na, K, C03, HC03, CI, SO4 2-, SAR & micronutrients
Neem oil in neem cake Starch reserve in roots (quantitative)
Phosphorus/Potassium/Sulphur content in leaf sample Endogenous ABA and GA3 analysis
Nitrogen content in leaf PCR analysis of accessions (Unit of 5 Replicates)
N,P and K/NK analysis in leaf sample Enzyme substrate ratio analysis(Unit of 5 Replicates)
N,P,K,Ca & Mg in leaf sample  
Moisture content Total polyphenols
Water extract Total catechin
Crude fibre Total amino acid
TF,TR, HPS & TLC Total lipid
Ash content Soluble sugar
Iron filings/Cu/Zn content Catechin fractions (using HPLC)
Caffeine (using HPLC) VFC (using GC)
Tannin Pesticide residues
Microscopic examination Analysis of dicofol/DDT residues
Complete PFA specification  
Enumeration of micro flora (Spore load / Viability ) from made tea/soil/ bio fertilizer/organic compost quality checking of bioformulations (liquid / solid)
Identification of diseased specimens
Thermo hygrograph pH meter
Moisture meter  
Field evaluation of pesticide/ weedicide/ fungicide.
Field evaluation of PGR.
Field evaluation of fertilizer/micronutrient /bio fertilizer.
Field evaluation of PGR / fertilizer/ micronutrient / bio fertilizer coupled with determination of physiological parameters or quality parameters.
Field evaluation of PGR / fertilizer / micronutrient/ Bio fertilizer coupled with determination of quality and physiological parameters.
Field trial for preparation of black tea samples for residue analysis.
Field trial for preparation of black tea and dried green leaf for residue studies.
Field trial for residues and analysis of residues in black tea.
Field trial for residues and analysis of residues in black tea and dried green leaf.
Taint test
Phytotoxicity test
Field study on effect of pesticide on natural enemies of pests
Microplot tests for pesticide / weedicidesss
Lab bioefficacy tests
Packaging trial on made tea.
Enzyme trials on quality improvement of tea.
Training programmes TRF organizes training programmes on situation warranted relevant topics as well as on entire gamut of tea cultivation for the benefit of executives, field staff and work force. Factory staff benefited through the training programme on tea manufacture. Industrial training UPASI TRI offers short-term industrial training programme in biotechnology, biochemistry and microbiology to the under graduate and post graduate students belonging to various academic institutions at nominal cost. Students (M.Sc./B.Tech. Biotech) preferred to do their project work as an integral part of their course also given opportunity at TRI to complete their curriculum for a period of maximum three months. Lectures are delivered by subject experts for the benefit of students from universities and colleges visiting the TRI.