Research Articles

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  Fertilizer from eppawela apatite: conversion using alkali hydroxide and quartz

  R. P. Gunawardane,  H. Annersten

  • PDF (EN)

  30 Jun 1987

  15(2):117-132
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  Lactational amenorrhoea and contraceptive practice

  Dulitha N. Fernando,  Priyani E. Soysa,  K. Abeywickrama

  • PDF (EN)

  30 Jan 1987

  15(2):133-144
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  Trichloroacetic and soluble antigens of Setaria digitata: characterization and cross reaction with human serum components

  S. Dissanayake,  M. Amaratunga

  • PDF (EN)

  30 Jun 1987

  15(2):145-160
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  Salinity tolerances of three species of freshwater atyid shrimps (Decapoda : Caridea) of Sri Lanka

  K. H. G. M. De Silva

  • PDF (EN)

  30 Jun 1987

  15(2):161-174
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  Threshold weed competition duration of mungbean (Phaseolus aureus. Roxb)

  N. Senanayake,  R. P. S. P. Pathirana

  • PDF (EN)

  30 Jun 1987

  15(2):175-182
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  Studies on complete and partial acidulation of Eppawela apatite

  R. P. Gunawardane

  • PDF (EN)

  30 Jun 1987

  15(2):183-200
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  Electronic conduction in H₂O doped solid methylene blue

  K. Tennakone,  C. Kasige

  • PDF (EN)

  30 Jun 1987

  15(2):201-208
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  Double numbers in geometry

  Nihal Siriwardene

  • PDF (EN)

  30 Jun 1987

  15(2):209-216
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  Immobilization of Alpha-amylase and glucoamylase to sepharose - 4B

  V. Arasaratnam,  K. Balasubramaniam

  • PDF (EN)

  30 Jun 1987

  15(2):217-226
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  Ratoon stunting disease of sugarcane in Sri Lanka

  D. L. Jayaratne,  S. Widanapathirana

  • PDF (EN)

  30 Jun 1987

  15(2):227-236
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  A recapitulation of the genetics and evolution of insect biotypes on cereals: the case study of the Hessian fly

  C. Kudagamage,  J. E. Foster,  J. E. Araya

  • PDF (EN)

  30 Jun 1987

  15(2):237-248
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  Rice-field weeds in the Colombo and Gampaha districts of Sri Lanka

  J. P. N. R. Chandrasena

  • PDF (EN)

  30 Jun 1987

  15(2):249-265