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Postgraduate Institute of Agriculture, University of Peradeniya
The Postgraduate Institute of Agriculture(PGIA), Univesity of Peradeniya
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- Recommended agricultural practices 1
- Recreational value 2
- Recreational vaule 1
- Recycling 1
- Red grouse 1
- Red Junglefowl 1
- Red light 1
- Red marine algae 1
- Reddish brown earth soil 1
- Reddish brown earth soils 1
- Reddish brown latosolic soils 1
- Reel index 1
- Refractive index 1
- Refuse tea 2
- Regional charaeteristion 1
- Regional tea 1
- Regulations 2
- Reinforcement 1
- Relationship 4
- Relative abundance 1