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21.
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Evaluation of herbicide applicators by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Placrosym VII, 1986, Coonoor, India. Journal of Plantation Crops, 16(Supplement): 207-216 1989
Availability: Not available: RRII Library: Bibliography (1).

22.
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Evaluation of herbicidal activity of glyphosate with low cost additives by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Placrosym VIII, 1988, Cochin, India. Journal of Plantation Crops, 18 (Supplement): 147-150 1991
Availability: Not available: RRII Library: Bibliography (1).

23.
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Intercropping in rubber plantations 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. 431-437. 1978
Availability: Not available: RRII Library: Bibliography (1).

24.
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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).

25.
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Characterisation of potassium in rubber growing soils 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. 45-53. 1978
Availability: Not available: RRII Library: Bibliography (1).

26.
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Changes in foliar nutrient status of rubber (Hevea brasiliensis) and soil available nutrients due to application of fertilizers under Tripura conditions by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Placrosym X, 1992, Kasaragod, India. Journal of Plantation Crops, 21 (Supplement): 86-91. 1993
Availability: Not available: RRII Library: Bibliography (1).

27.
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Results of fertiliser experiments on young rubber trees grown with legume and natural ground covers 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. 141-147. 1978
Availability: Not available: RRII Library: Bibliography (1).

28.
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Studies on the direct and residual effect of nitrogen, phosphorus and potassium on the growth and yield of rubber (Hevea brasiliensis) in the red loam soils of South 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. 175 1978
Availability: Not available: RRII Library: Bibliography (1).

29.
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Mechanized land preparation for rubber: Risks and benefits by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, pp. 5-6.
Availability: Not available: RRII Library: Bibliography (1).

30.
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Mechanical weeders: An efficient, eco-friendly and economic device for weed control in rubber plantations by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, pp. 8-9.
Availability: Not available: RRII Library: Bibliography (1).

31.
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Reducing the immature phase of natural rubber cultivation: Role ofagromanagement techniques by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, pp. 63-64.
Availability: Not available: RRII Library: Bibliography (1).

32.
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Distribution of potassium forms in soils under repeated rubber cultivation and virgin forest by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, pp. 67-68.
Availability: Not available: RRII Library: Bibliography (1).

33.
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Under-flora in rubber plantations: Its effect on soil properties by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, p. 69.
Availability: Not available: RRII Library: Bibliography (1).

34.
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Secondary and micronutrient nutrition in rubber seedling nursery by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, p. 72.
Availability: Not available: RRII Library: Bibliography (1).

35.
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Estimates of nitrogen fixation by leguminous cover crops grown in immature rubber plantations using 15N isotype dilution technique by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, pp. 75-76.
Availability: Not available: RRII Library: Bibliography (1).

36.
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High density planting in rubber plantatoins by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, pp. 82-83.
Availability: Not available: RRII Library: Bibliography (1).

37.
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Available boron status and its relationships with physico-chemical properties of soils under rubber cultivation in north-east India by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: PLACROSYM XX, 12-15 December 2012, UPASI Tea Research Foundation, Coimbatore, India, Abstracts, pp. 86-87.
Availability: Not available: RRII Library: Bibliography (1).

38.
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Pedochemical characterization of rubber growing soils of north eastern upland zone of Kerala by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Placrosym XVII, 2006, Kochi, India. Journal of Plantation Crops, 34 (3). Indian Cardamom Research Institute (Spices Board), Idukki, India, pp.323-329.
Availability: Not available: RRII Library: Bibliography (1).

39.
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Effect of different liming materials on availability of nutrients and growth of rubber seedlings in the nursery by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Placrosym XVII, 2006, Kochi, India. Journal of Plantation Crops, 34 (3). Indian Cardamom Research Institute (Spices Board), Idukki, India, pp.356-360.
Availability: Not available: RRII Library: Bibliography (1).

40.
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Comparative study of soils under rubber (Hevea brasiliensis) and forest with reference to ion exchange and pedogenic components 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): 348-353. 2008
Availability: Not available: RRII Library: Bibliography (1).