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	1.	Image from Google Jackets	Recent developments in the nutrition of Hevea in Sri Lanka by Yogaratnam N Silva F P W Weerasuriya S M Material type: Text; Format: print ; Literary form: Not fiction Publication details: Proceedings of the International Rubber Conference, Colombo, 1984, V1. Part 1; p19-46Proceedings of the International Rubber Conference, Colombo, 1984, V1. Part 1; p207-247 Availability: Not available: RRII Library: Journals (1). Save to lists Add to cart (remove)
	2.	Image from Google Jackets	Use of organic materials as fertilizers by Yogaratnam N Silva F P W Material type: Text; Format: print ; Literary form: Not fiction Publication details: Bulletin of the Rubber Research Institute of Sri Lanka 1987 Availability: Not available: RRII Library: Journals (1). Save to lists Add to cart (remove)

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