1. Results of the IPI colloquia at Uppsala Landshut and Abidjan and an introduction to the congress
  2. Control of insects by exploiting their behaviour
  3. The loess of eastern Yorkshire and Lincolnshire
  4. Land capability classification in local government planning
  5. History of the Bee Research Association
  6. The influence of previous cropping and soil texture on the nitrogen requirement of sugarbeet
  7. Nitrogen fertilizer, previous cropping and soil type
  8. Potassium and sodium requirement
  9. Effect of fertilizers on sugar beet quality
  10. Docking disorder control
  11. An attempt to assess the toxicity of pesticide formulations to honeybees foraging on caged apple trees
  12. Effect of late-season top-dressings of N (and K) applied to conifer transplants in the nursery on their survival and growth on British forest sites
  13. The deposition of sulphur on soil in Northern Nigeria
  14. The deposition of sulphur in the rainwater in Northern Nigeria
  15. The deposition of sulphur in dust in northern Nigeria
  16. Work of the Insecticide Department - Rothamsted
  17. Genesis and management of acid sulfate soils
  18. Recent developments in grass virus research in Britain
  19. Problems and possibilities for control of BYDV in Britain
  20. A lithium-bearing aluminian regular mixed layer montmorillonite-chlorite from Huy, Belgium
  21. Fertiliser Effects on the growth and composition of Sitka and Norway Spruce nursery transplants and on the composition of a podzol profile after 15 years cropping
  22. The Woburn Organic Manuring Experiment I. Design, Crop Yields and Nutrient Balance, 1964-72
  23. The Woburn Organic Manuring Experiment II. Soil Analyses, 1964-72, With Special Reference to Changes in Carbon and Nitrogen
  24. Effects on plant growth produced by Azotobacter paspali related to synthesis of plant growth regulating substances
  25. Leptohylemyia coarctata (Fall.) - Integrated control and the use of economic thresholds 1
  26. Effects of pesticides on nontarget invertebrates in freshwater and soil
  27. Scanning electron microscope studies of symphyla
  28. Some effects of insecticides on Myriapod populations
  29. The behaviour of K remaining in soils from the Agdell experiment at Rothamsted, the results of intensive cropping in pot experiments and their relation to soil analysis and the results of field experiments
  30. Nonprotein amino acids from plants: Distribution, biosynthesis, and analog functions
  31. Alternative derivation of the sum of squares in a non-full rank general linear hypothesis
  32. Statistical packages : introductory remarks
  33. Weathering of ant baits containing aldrin, dieldrin and mirex in Trinidad
  34. A virus-induced component of plant sap needed when aphids acquire potato virus Y from purified preparations
  35. Virus resistance induced in plants by polyacrylic-acid
  36. Virulence and cellulolytic enzyme-activity of isolates of gaeumannomyces-graminis
  37. Varietal response by sugar-beet to nitrogen, sodium and potassium fertilizers
  38. Users guide to evaluation of statistical packages and systems
  39. Unusual type of streptococcus-pluton from eastern hive bee
  40. Treatment of negative indexes in crystallographic fast fourier-transforms
  41. System 4 random number generator
  42. Synthetic insecticide with a new order of activity
  43. Susceptibility of plants to attack by wireworms (agriotes-spp)
  44. Studies on feeding behavior of eriophyid mite abacarus-hystrix, a vector of grass viruses
  45. Structural aspects of knockdown of pyrethroids
  46. Some effects of temperature and larval food on the development of Spodoptera littoralis (Boisd.) (Lep., Noctuidae)
  47. Some effects of sodium-chloride on germination and seedling growth of sugar-beet
  48. Some aspects of volatilization of organochlorine insecticides
  49. Solar-radiation in crop canopies
  50. Solar-radiation for plant-growth
  51. Soil potassium and potassium uptake
  52. Soil - complex environment
  53. Simplified method of obtaining tobacco protoplasts for infection with tobacco mosaic-virus
  54. Simple technique for examining fresh, frozen, biological specimens in scanning electron-microscope
  55. Shrinkage of clay soils - statistical correlation with other soil properties
  56. Seed and root bacterization
  57. Seasonal changes in infection of barley seedlings by Erysiphe graminis f.sp. hordei
  58. Root growth of different species and varieties of cereals
  59. Root formation on petioles of detached primary leaves of dwarf bean (phaseolus-vulgaris) pretreated with gibberellic-acid, triiodobenzoic acid, and cytokinins
  60. Root and shoot growth of semi-dwarf and taller winter wheats
  61. Role of penicillium-frequentans in suberosis (respiratory disease in workers in cork industry)
  62. Role of nitrogen fertilizer in grassland production - quantity and timing of fertilizer n for grass and grass-clover swards
  63. Role of gibberellins in early growth and development of sugar-beet
  64. Ribonucleases in nicotiana-tabacum leaf extracts treated with phenol
  65. Rhythmic Foraging in the Leaf-Cutting Ant Atta cephalotes (L.) (Formicidae: Attini)
  66. Results from experiments with winter-wheat, spring barley and grass, comparing a liquid N-fertilizer either alone or with added herbicide and top-dressings of nitro-chalk without or with herbicide sprayed alone
  67. Results from experiments measuring residues of nitrogen fertilizer given for sugar-beet, and of ploughed-in sugar-beet tops, on yield of following barley
  68. Results from experiments measuring effects of large amounts of fertilizer and of farmyard manure on main-crop potatoes grown in sandy soil at Woburn, Bedfordshire
  69. Response of wheat bulb fly larvae to cereal exudates and extracts
  70. Response of sugar-beet to potassium and sodium fertilizers
  71. Response of 5 round cyst nematodes (heteroderidae) to 5 artificial hatching agents
  72. Repellents, synthetic pyrethroids, and organophosphorus compounds as seed dressings against wheat bulb fly (leptohylemyia-coarctata (fall))
  73. Rate of uptake of DDT from soil by earthworms
  74. Pyrethrins and related compounds .19. Geometrical and optical isomers of 2,2-dimethyl-3-(2,2-dichlorovinyl)-cyclopropanecarboxylic acid and insecticidal esters with 5-benzyl-3-furylmethyl and 3-phenoxybenzyl alcohols
  75. Pyrethrins and related compounds .18. Insecticidal 2,2-dimethylcyclopropanecarboxylates with new unsaturated 3-substituents
  76. Purification of ribonuclease-T1 on porous-glass affinity adsorbents
  77. Purification of maize streak virus and its relationship to viruses associated with streak diseases of sugar-cane and panicum-maximum
  78. Properties and isolates of barley yellow dwarf virus
  79. Possible explanation of resistance of virus-infected tobacco plants to second infection
  80. Pollination of self-fertile apple-trees
  81. Pollination of onion (allium-cepa l) to produce hybrid seed
  82. Pollen preferences of three osmia species (hymenoptera)
  83. Plant-growth responses to vesicular-arbuscular mycorrhiza .7. Growth and nodulation of some herbage legumes
  84. Plant-growth responses to vesicular-arbuscular mycorrhiza .6. Effect of light and temperature
  85. Phytuberin - revised structure from X-ray crystal analysis of dihydrophytuberin
  86. Passive ingestion in a plant nematode, hexatylus-viviparus (neotylenchidae-tylenchida)
  87. Partial-purification and characterization of 2 nicotiana-tabacum leaf ribonucleases
  88. Overwintering and abundance of cereal aphids
  89. New way of representing diagnostic keys
  90. Neuroanatomy of mesothoracic ganglion of cockroach periplaneta-americana (l) .1. Roots of peripheral-nerves
  91. Multivariate-analysis and its applications - report on Hull Conference, 1973
  92. Multiple discriminant-analysis in soil survey
  93. Movement of the Pheromone 9-Oxodec-2-Enoic Acid, applied to body surfaces of honeybees (Apis Mellifera)
  94. Morphology and soluble-protein electrophoresis of heterodera-avenae pathotypes
  95. Molding of sugar-cane bagasse and its prevention
  96. Model of selective migration
  97. Micro-environmental factors affecting diel patterns of foraging in leaf-cutting ant atta-cephalotes (l) (formicidae-attini)
  98. Method for soil particle-size analysis using ultrasonic disaggregation
  99. The Mediancentre Algorithm AS 78
  100. Maximal predictive classification
  101. Log-series and log-normal parameters as diversity discriminants for lepidoptera
  102. Log linear-models for contingency-tables - generalization of classical least-squares
  103. Lipid storage in pre-imago and young-adult plusia-gamma
  104. Late pleistocene deposits at Wretton, Norfolk .2. Devensian deposits
  105. Langmuir 2-surface equation as a model for phosphate adsorption by soils
  106. L1-norm fit of a straight line
  107. Knockdown by pyrethroids - role in intoxication process
  108. Iterative computer procedure for mixed-up values in experiments
  109. Intracellular site of sucrose synthesis in leaves
  110. Insecticides and Fungicides Department at Rothamsted - research on pest and plant disease control
  111. Insecticidally active conformations of pyrethroids
  112. Insecticidally active conformations of pyrethroids
  113. Insecticidal activity of pyrethrins and related compounds .6. Methyl-furfuryl, alkenyl-furfuryl, and benzyl-furfuryl and benzyl-3-furylmethyl chrysanthemates
  114. Insect migration, flight periodicity and boundary-layer
  115. Insect infestations and their effects on growth and yield of field crops - a review
  116. Inhibition of acquired-resistance to tobacco mosaic-virus by actinomycin-d
  117. Influence of partial-pressure of carbon-dioxide upon carbon metabolism in tomato leaf
  118. Influence of location of honeybee colonies on their choice of pollen sources
  119. Influence of dl-tyrosine on sex of heterodera-rostochiensis
  120. Influence of artificial queen-piping sound on tendency of honeybee, apis-mellifera, colonies to swarm
  121. Induction of top-roll symptoms on potato plants by aphid macrosiphum-euphorbiae
  122. Host-parasite relationships of potato cyst nematodes - speculation arising from gene for gene hypothesis
  123. Harvesting sugar-beet seed
  124. Growth of plants in different oxygen concentrations
  125. Growth and yield of sugar-beet in relation to potassium and sodium supply
  126. Grading monogerm sugar-beet seed and its influence on performance
  127. Geomorphological significance of clay-with-flints on south downs
  128. Genetics of resistance of a dimethoate-selected strain of houseflies (musca-domestica l) to several insecticides and methylenedioxyphenyl synergists
  129. Generalized linear-models specified in terms of constraints
  130. Fungus associated with young females of cereal cyst-nematode, heterodera-avenae
  131. Fluctuations in wheat bulb fly egg populations in eastern England
  132. Fixation of nucleic-acid by leaf fiber and calcium-phosphate
  133. Field experiments in control of verticillium-dahliae and heterodera-rostochiensis on potatoes
  134. Fate of some organophosphorus compounds applied topically to peach-potato aphids (myzus-persicae (sulz)) resistant and suceptible to insecticides
  135. Factors determining food storage and brood rearing in honeybee (apis-mellifera l) comb
  136. Factors affecting persistence of pesticides in soil
  137. Evidence that a component other than virus particle is needed for aphid transmission of potato virus Y
  138. Etiology and morphology of geniculodendron-pyriforme gen et sp-nov, a pathogen of conifer seeds
  139. Esterase-inhibiting photooxidation products from organophosphorus insecticide pyrimithate
  140. Entomophthora infecting wheat bulb fly at Rothamsted, Hertfordshire, 1967-71
  141. Effects on plant-growth produced by azotobacterpaspali related to synthesis of plant-growth regulating substances
  142. Effects of processing conditions on quality of leaf protein
  143. Effects of potassium on distributions and concentrations of mineral nutrients in potato plants
  144. Effects of plant density, irrigation and potassium and sodium fertilizers on sugar-beet .2. Influence of soil-moisture and weather
  145. Effects of plant density, irrigation and potassium and sodium fertilizers on sugar-beet .1. Yields and nutrient composition
  146. Effects of parasites and predators on cereal aphids metopolophium-dirhodum (wlk) and macrosiphum-avenae (f) (hem aphididae)
  147. Effects of mildew on the growth and yield of spring barley: 1969‐72
  148. Effects of light-trap design and illumination on samples of moths in an English woodland
  149. Effects of gangrene (phoma-exigua) on potatoes
  150. Effects of diet on composition of post-pharyngeal glands of acromyrmex-octospinosus (reich)
  151. Effects of atmospheric humidity on plant-growth
  152. Effects of antimicrobial substances on rhizobium spp and their use in selective media
  153. Effects of aldicarb and some other nematicides on growth of sugar-beet in heterodera-schachtii infested soil
  154. Effect of temperature on the cereal aphids Metopolophium dirhodum (Wlk.), Rhopalosiphum padi (L.) and Macrosiphum avenue (F.) (Hem., Aphididae)
  155. Effect of sodium-sulfite purity on color of bodian silver staining of insect central nervous systems
  156. Effect of replacing potassium by sodium on growth and on inorganic and organic composition of italian ryegrass
  157. Effect of plant spacing, nitrogen fertilizer and irrigation on appearance of symptoms and spread of virus yellows in sugar-beet crops
  158. Effect of pesticides on yield and botanical composition of a newly-sown ryegrass ley and of an old mixed pasture
  159. Effect of nitrogen-sources and iron levels on growth and composition of sitka spruce and scots pine
  160. Effect of nitrogen nutrition of host on barley powdery mildew
  161. Effect of nematicides, applied to seed rows in spring, on growth and yield of sugar-beet in docking-disorder-affected fields
  162. Effect of evaporation of entrained liquid on soil fabric
  163. Effect of cultural practices on relationship between plant density and sugar yield
  164. Disease gradients and small plot experiments on barley mildew
  165. Direct measurement of sulfur deposition on bare soil
  166. Detection of polarized-light
  167. Designs to minimize loss of information in polynomial regression
  168. Delayed nitrification and controlled recovery of aqueous ammonia injected under grass
  169. Defecation in a passively-feeding plant nematode, hexatylus-viviparus (neotylenchidae-tylenchida)
  170. Crystal-structure of phlogopite by neutron-diffraction
  171. Crystal-structure of dihydroperchlorate of 1,4,8,11-tetra-azacyclotetradecane(cyclam)
  172. Crystal-structure of a sodium complex, bis- nn'-ethylenebis(salicylid-eneiminato)copper(ii) perchloratosodium-p ara-xylene
  173. Crystal-structure of a dinuclear dinitrogen complex - tetrachloro-(chlorotetrakis dimethyl(phenyl)phosphine rhenium(i))-mu-din itrogen-methoxymolybdenum(v)-methanol-hydrochloric acid
  174. Crystal-structure of a complex of potassium iodide with phenacyl kojate - bis(5-phenacyloxy-2-hydroxymethyl-4h-pyran-4-one)potassium iodide
  175. Crystal-structure of a complex of cesium thiocyanate with phenacylcojate - 5-phenacyl-2-(hydroxymethyl)-4h-pyran-4-one-caesium thiocyanate
  176. Counting preferential votes - comment
  177. Control of pea cyst-nematode, heterodera-goettingiana, by small amounts of aldicarb, dupont-1410, ciba-geigy-10576 or dowco-275 applied to soil at planting time
  178. Composition of triglycerides from aphids of 6 different families and from different seasonal forms of aphis-evonymi
  179. A comparison of seasonal changes in deposition of spores of Erysiphe graminis on different trapping surfaces
  180. Cold-lability of prolyl-transfer-rna synthetase from higher-plants
  181. Cobalt, chromium and nickel content of some vegetable foodstuffs
  182. Chlorophyll degradation products in leaf protein preparations
  183. Chlorophenol and chlorobenzoic acid co-metabolism by different genera of soil bacteria
  184. Chemical Modification of the Lysine-Amino Groups of Potato Virus X
  185. Chemical composition of British agricultural liming materials
  186. Cell junctions acting as intestinal valves in nematodes
  187. Bromine residues in potato and wheat crops grown in soil fumigated with methyl-bromide
  188. Bird damage to sugar-beet
  189. Artificial alteration of biotite into a 14 a layer silicate with hydroxy-aluminum interlayers
  190. Aphids caught on sticky traps in eastern England in relation to spread of yellowing viruses of sugar-beet
  191. Analysis-of-variance programs, least squares and 2-way tables
  192. Alternative derivation of sum of squares in a nonfull rank general linear hypothesis
  193. Allergy in mushroom workers
  194. Affinity chromatography of nicotiana-tabacum ribonucleases
  195. Accumulation of lead in soils and herbage at Rothamsted-Experimental-Station
  196. Absolute-configuration of potent insecticide alpha-cyano-3-phenoxybenzyl cis-2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropanecarboxylate by X-ray crystal-structure analysis
  197. 4 dimensions of cereal aphids
  198. Three (3 ) previously undescribed viruses from honey bee
  199. Alternative route for nitrogen assimilation in higher-plants
  200. Quasi-likelihood functions, generalized linear models, and the Gauss-Newton method
  201. Potassium in relation to transport of carbohydrate and ions in plants
  202. Potassium and the distribution of calcium and magnesium in potato plants
  203. Potassium and the absorption of calcium and magnesium by potato plants from soil
  204. The calcareous soils of Azerbaijan II. Phosphate status
  205. The calcareous soils of Azerbaijan I. Catena development related to the distribution and surface properties of soil carbonate