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21.
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22.
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Effect of Pueraria phaseoloides and Mucuna bracteata on the physico-chemical properties of soils of immature rubber plantations by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Natural Rubber Research 2005
Availability: Not available: RRII Library: Bibliography (1).

23.
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Evaluation of bowl sludge as a source of phosphorus nutrient for Hevea brasiliensis by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Natural Rubber Research 2005
Availability: Not available: RRII Library: Bibliography (1).

24.
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Substitution of potassium with sodium as nutrient for the growth of rubber seedlings by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Natural Rubber Research 2006
Availability: Not available: RRII Library: Bibliography (1).

25.
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Evaluation of crumb rubber factory sludge as manure for rubber by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Natural Rubber Research 2006
Availability: Not available: RRII Library: Bibliography (1).

26.
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Influence of intercropping on growth of rubber (Hevea brasiliensis) and soil physico-chemical properties by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Natural Rubber Research 2012
Availability: Not available: RRII Library: Bibliography (1).

27.
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A comparison of UV spectroscopy and ion selective electrode in the determination of nitrate in Hevea foliage by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Indian Journal of Natural Rubber Research 1990
Availability: Not available: RRII Library: Bibliography (1).

28.
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Impact of establishing rubber nurseries for long period on soil fertility status by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Rubber Board Bulletin 2011
Availability: Not available: RRII Library: Bibliography (1).

29.
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Impact of establishing rubber nurseries for long period on soil fertility status by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Rubber Board Bulletin 2011
Availability: Not available: RRII Library: Bibliography (1).

30.
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Sustainability of rubber ecosystem: A case study at RRII farm by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Rubber Board Bulletin 2012
Availability: Not available: RRII Library: Bibliography (1).

31.
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Valaprayogam karyakhamamakkan by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Rubber 2008
Availability: Not available: RRII Library: Bibliography (1).

32.
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Comparison of different extraction methods for determination of available phosphorus in rubber growing soils by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: International Rubber Conference, 23-28 November 1980, Rubber Research Institute of India, Kottayam, India. 1980
Availability: Not available: RRII Library: Bibliography (1).

33.
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Effect of continuous application of nitrogenous fertilizer on sulphur status of soil by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Proceedings of the National Seminar on Sulphur in Agriculture, 1989, Bangalore, India, pp. 57-62. 1989
Availability: Not available: RRII Library: Bibliography (1).

34.
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Evaluation of bowl sludge as fertilizer for immature rubber and cover crop by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Placrosym VIII, 1988, Cochin, India. Journal of Plantation Crops, 18 (Supplement): 179-183 1991
Availability: Not available: RRII Library: Bibliography (1).

35.
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Distribution of total and different fractions of nitrogen in rubber growing soils under different age and fertilizer management practices by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Placrosym X, 1992, Kasaragod, India. Journal of Plantation Crops, 21(Supplement): 92-97. 1993
Availability: Not available: RRII Library: Bibliography (1).

36.
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Relation of H-ion concentration to the available cationic nutrients in rubber growing soils in India by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: In: Agronomy soils physiology and economics of plantation crops: Placrosym I, 1978, Kottayam. (Ed. E.V. Nelliat). Indian Society for Plantation Crops, Kasaragod, India, pp. 81. 1978
Availability: Not available: RRII Library: Bibliography (1).

37.
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A study of the response in yield and growth of rubber grown in association with legume and natural ground cover during the immature phase by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Placrosym VII, 1986, Coonoor, India. Journal of Plantation Crops, 16(Supplement):433-441 1989
Availability: Not available: RRII Library: Bibliography (1).

38.
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An overview of discriminatory fertilizer usage in rubber plantations of South India by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: The Progress and Development of Rubber Small Holders: Proceedings of the Ninth Seminar, 9-11 November 2005, Cochin, India. pp.161-169.
Availability: Not available: RRII Library: Bibliography (1).

39.
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Clonal variation in latex nutrient content and nutrient drainage from some of the promising Hevea clones through latex by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Preprints of Papers. International Natural Rubber Conference 13-14 November 2006, Vietnam, pp.259-266.
Availability: Not available: RRII Library: Bibliography (1).

40.
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Effect of partially replacing potassium by sodium on growth and yield of Hevea brasiliensis by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XVIII. 10-13 December 2008, National Research Centre for Cashew, Puttur, Karnataka. Journal of Plantation Crops, 36 (3): 360-365. 2008
Availability: Not available: RRII Library: Bibliography (1).