1969

  1. Effect of Morphactin on growth of potatoes
  2. A comparison of methods of growing sugar-beet seed
  3. Extraction and handling of plant and soil nematodes
  4. The genus Longidorella Thorne (Nematoda)
  5. Identification of plant and soil nematodes
  6. Some problems in the systematics of soil nematodes
  7. Methods of investigating populations of the take‐all fungus (Ophiobolus graminis) in soil
  8. Quantitative estimation of soil-borne inoculum of the take-all fungus (Ophiobolus graminis (Sacc.) Sacc.)
  9. Allyfurans
  10. The phenology of skin spot (Oospora pustulans Owen &Wakef.) and other fungal diseases of potato tubers
  11. Control of potato tuber diseases with systemic fungicides
  12. Use of fertilizers on horticultural crops
  13. The phenology of skin spot (Oospora pustulans Owen &Wakef.) and other fungal diseases of potato tubers
  14. Control of potato tuber diseases with systemic fungicides
  15. Some processes affecting nitrogen in the soil
  16. Influence of the odour of a honeybee colony's food stores on the behaviour of its foragers
  17. The egg-eating behaviour of Bombus lapidarius L.
  18. The effect of the size of a honeybee colony on its foraging activity
  19. Migration of Laphygma exigua Hubner (Lepidoptera: Noctuidae) to the British Isles in relation to large-scale weather systems
  20. Moth immigrations in the British Isles in July 1968
  21. Effect of seedling treatment on growth and yield of sugar beet in the field
  22. Persistent effects of seedling treatment on growth of sugar beet in pots
  23. Photosynthesis in sugar beet depends on root growth
  24. Heterodera latipons n. sp., a cereal cyst nematode from the Mediterranean region
  25. Two marine species of Aphelenchoides
  26. The relation between stylet and body length in Aphelenchus avenae with observations on Paratylenchus nanus
  27. Investigations on fecundity of Aphelenchus avenae
  28. The mutation of some virulent rhizobiophages into the temperate form
  29. Residual Infectivity and the Extent of Photoreactivation in Three Different Host Plants of uv-irradiated Potato Virus X
  30. Changes in a Heterodera rostochiensis population through the growing season
  31. Apparatus for measuring nematode movement
  32. Effect of CCC on Eyespot (Cercosporella herpotrichoides) of Winter Whear
  33. Effect of paraflan wax on field control of potato blight by copper oxychloride
  34. Effects of spraying plants with suspensions of inert dusts
  35. Aerodynamic and surface factors in evaporation
  36. Effects of soil fumigation on disease incidence, growth, and yield of spring wheat
  37. Action spectrum for inactivation of the infectivity of potato virus X by U.V. radiation
  38. Spermatheca shape in Trophurus spp
  39. Pratylenchus pinguicaudatus n. sp.(Pratylenchinae: Nematoda) with a key to the genus Pratylenchus.
  40. Fertilizers in 2000 AD Phosphorus in agriculture
  41. Plant nutrient cycles
  42. Using chemicals to increase soil productivity
  43. Types of fertilizers used on farm crops in England and Wales, 1966
  44. Queen confinement, queen piping and swarming in Apis mellifera colonies
  45. The Pleistocene deposits of Holderness, East Yorkshire
  46. Age and insect fauna of the Dimlington Silts, East Yorkshire
  47. The mineralogy of Palaeogene sediments in northeast Kent (Great Britain)
  48. The absence of photoreversible pyrimidine dimers in the RNA of ultraviolet-irradiated tobacco mosaic virus
  49. Species and sex-specific compounds from the heads of male bumblebees (Bombus spp.)
  50. The scent gland complex of the adult cotton stainer bug, Dysdercus intermedius
  51. The morphology of the scent glands of Dysdercus intermedius Distant (Hemiptera: Pyrrhocoridae) and a preliminary analysis of the scent gland secretions of the fifth instar larvae
  52. The effect of farmyard manure on the fertilizer requirement of sugar beet
  53. The effects of magnesium fertilizers on yield and chemical composition of sugar beet
  54. Trials on the control of Docking disorder in sugar beet; seed and row treatment with nematicides
  55. Reduction of acetylene by nodules of Trifolium subterraneum as affected by root temperature, Rhizobium strain and host cultivar
  56. Peat Culture of Rhizobium trifolii: an Examination by Electron Microscopy
  57. Growth of Trifolium subterraneum L. Selected for Sparse and Abundant Nodulation as Affected by Root Temperature and Rhizobium Strain
  58. Entomophthora species attacking aphids in England, 1962–66
  59. Entomophthora species attacking aphids in England, 1962–66
  60. Effects of nitrogen and potassium fertilisers on contents of carbohydrates and free amino acids in Italian ryegrass I Effects on growth and soluble‐carbohydrate contents of leaves, stubble and roots
  61. Monarch butterflies coinciding with American passerines in Britain and Ireland in 1968
  62. Interference by cyanide with the measurements of papain hydrolysis
  63. Effect of storage and lipid extraction on the properties of leaf protein
  64. Interactions of Azotobacter with rhizosphere and root-surface microflora
  65. Zeolites of the elinoptilolite–heulandite type in sediments of South-East England
  66. Thin windows for flow proportional counters in x-ray fluorescence spectrometers
  67. Partial silicification of chalk fossils from the Chilterns
  68. The diminution of sulphur contamination of powder specimens in X-ray fluorescence analysis
  69. The determination of sulphur in soils by X-ray fluorescence analysis
  70. Delayed Exchange of Potassium from some Edges of Mica Flakes
  71. Conifer seedling pathology
  72. Diffusion of organophosphorus insecticides in soils
  73. Uptake of phosphorus and other nutrients by maize in western Nigeria
  74. Molecular Structure of Herbicides and their Sorption by Soils
  75. A laboratory‐scale pulper for leafy plant material
  76. A laboratory-scale press for extracting juice from leaf pulp
  77. Mobilisation and fixation of iron and trace elements by aerobically decomposing plant matter.
  78. The effect of organic matter on the determination of iron (II) in soils and rocks
  79. The Park Grass plots at Rothamsted (1856-1949)
  80. Food resources: conventional and novel
  81. Genetics of symbiosis and nitrogen fixation in legumes
  82. The Viruses [Chapter 11]
  83. The production and use of leaf protein
  84. Sampling for aphids by traps and by crop inspection
  85. Growth and yield of six short varieties of spring wheat derived from Norin 10 and of two European varieties
  86. Health hazards from mouldy fodder
  87. Complementary ways of meeting the world’s protein need
  88. Experiments with CCC on wheat: effects of spacing, nitrogen and irrigation
  89. Nutrition experiments on forest nurseries
  90. Viruses, vectors and vegetation [Book Review]
  91. Algorithm AS 18: Evaluation of Marginal Means
  92. Algorithm AS 19: Analysis of Variance for a Factorial Table
  93. A survey of numerical methods useful in taxonomy - mites
  94. Algorithm AS 23: Calculation of Effects
  95. The basis of numerical methods of classification
  96. Further Results on the Effects of Phorate on Losses of Sweet Corn (Zea mays L.) Caused by Frit Fly (Oscinella frit L.)
  97. An Experiment to Assess Losses Caused by Frit-fly (Oscinella frit L) Shoot Attack and the Application of Phorate in a Crop of Sweet Corn (Zea mays L)
  98. Soluble and slow-release PK-fertilizers for seedlings and transplants of Picea sitchensis and Picea abies in two English nurseries
  99. Problem of insecticidal residues in agricultural soils
  100. Problems of soil classification
  101. Portable counter with keyboard and probes
  102. The plant nutrients in crops grown on Broadbalk
  103. The soils of Broadbalk : Plant nutrients in Broadbalk soils
  104. Preservation of leaf protein preparations by air drying
  105. The influence of agricultural practice on soil macro-arthropod populations
  106. Soil pollutants and soil animals
  107. Effects of gamma irradiation on populations of soil invertebrates
  108. Aerial photography in Soil and Land Survey
  109. The multiplication regions and interaction of acute and chronic bee-paralysis viruses in adult honey bees
  110. The signs of adult bee diseases
  111. The multiplication and spread of sacbrood virus of bees
  112. Algorithm AS 20: The efficient formation of a triangular array with restricted storage for data
  113. A fifty-channel digital recorder for thermocouple psychrometers
  114. Some pheromones controlling honeybee behaviour
  115. Nest-entrance marking with pheromones by honeybee-Apis mellifera L and by a wasp Vespula Vulgaris L
  116. Pheromones of the honey bee - The secretion of the Nassanoff gland of the worker
  117. Minimum spanning trees and single linkage cluster analysis
  118. Condensation of ketones with dimethyl dimethylmaleate. A synthesis of calythrone
  119. Structural requirements for pyrethrin-like activity
  120. Pyrethrin 2 and related esters obtained by reconstitution
  121. Nuclear magnetic resonance spectra of natural pyrethrins and related compounds
  122. Insecticidal activity of pyrethrins and related compounds. 2. Relative toxicity of esters from optical and geometrical isomers of chrysanthemic, pyrethric and related acids and optical isomers of cinerolone and allethrolone
  123. The description of data structures for statistical computing
  124. Relationships of yields of maize and cotton, and the response to phosphate fertilizer, with soil phosphate potentials in Tanzania
  125. The buffering capacity of potassium reserves in soils