1. New or unusual records of plant diseases and pests
  2. Seventh Boyd Orr memorial lecture. Managing the mineral cycle
  3. Scanning electron microscope observations on the morphology of Tylenchorhynchus aduncus
  4. Quaternary history of the Hertfordshire area
  5. Comparison of the epidemiology of Metopolophium dirhodum and Sitobion avenae on winter wheat
  6. Settling behaviour of cereal aphids and forecasting outbreaks
  7. Fungitoxicity of hydroxy‐ and methoxy‐substituted phenyl‐ and naphthyl‐benzofurans, phenylbenzo[b]thiophenes and phenylindoles
  8. Algorithm AS 166: Generation of Polynomial Contrasts for Incomplete Factorial Designs with Quantitative Levels
  9. Algorithm AS 167: Screening Algorithm for Experimental Designs with Quantitative Levels
  10. Forecasting outbreaks of the English grain aphid, Sitobion avenae, with the aid of a simulation model
  11. Housefly resistance to pyrethroids in the vicinity of Harpenden
  12. Present trends and future needs in modelling for the management of insecticide resistance
  13. Towards integrated control of cereal aphids
  14. Water stress and crop growth 11
  15. Protoplasts in the in vivo life cycle of Erynia neoaphidis
  16. Influence of aerial pollution on crop growth and yield
  17. Effects of ground rock phosphate and elemental S on yield and P uptake of maize in western Kenya
  18. The deposition of sulphur and sodium in rainwater in the coastal region of Kenya
  19. Relationships between chemical structure and the behaviour and fate of pesticides
  20. Adsorption of pesticides by some Australian soils
  21. The first fifty years of the Journal of Animal Ecology with an Author index
  22. Canopy conductance of estate tea in Kenya
  23. Airborne Actinomycete spores as respiratory allergens
  24. chemicals for preventing moulding in damp hay
  25. The aerobiology of conidial fungi
  26. Problems in the use of sensitive serological methods for detecting viruses in vectors
  27. A comparison of the relative importance of between- and within-crop spread of ryegrass mosaic virus by eriophyid mites
  28. Agropyron mosaic virus in wheat
  29. Proceedings: 3rd Conference on Virus Diseases of Gramineae in Europe, Rothamsted, 28-30 May 1980
  30. Seed transmission and effects of ryegrass spherical virus
  31. Opportunities for manipulation of cereal productivity
  32. Barley yellow dwarf virus infectivity of cereal aphids trapped at two sites in Victoria
  33. Microbial biomass in soil: measurement and turnover
  34. Cation exchange in soils
  35. Precipitation
  36. The translocation of metals in soils
  37. The fate of plant and animal residues in soil
  38. Soil-borne pests and diseases
  39. Cropping systems in relation to soil-borne and trash-borne diseases of cereals
  40. Chairman's comments
  41. Chemicals in the control of cereal virus diseases
  42. Fungicides, fertilizers and sowing date
  43. Strategies for the control of cereal disease
  44. Expressing complex relationships in two dimensions
  45. Ordination between-and within-groups applied to soil classification
  46. Plotting the optimum positions of an array of cortical electrical phosphenes
  47. The effects of irrigation, nitrogen fertilizer and the control of pests and pathogens on spring-sown field beans (Vicia faba L.) and residual effects on two following winter wheat crops
  48. Petrography, origin and environment of deposition of the Shirdley Hill Sand of southwest Lancashire, England
  49. Analysis of asymmetric relationships in geological data
  50. Analysis of asymmetric relationships in geological data
  51. control of soil-inhabiting arthropods with Neoaplectana carpocaspsae
  52. Carabid beetles as predators of cereal aphids
  53. Biological effectiveness of spinning disc electrostatic sprayers
  54. Electrostatic spraying of crops with the APE 80
  55. The effect of temperature on photosynthetic and photorespiratory metabolism
  56. Experience of kriging from field measurements of soil properties : 3rd Colloque AISA Traitment informatique des Donnes de sol 14-17th Sept 1981
  57. Science in Crop Protection
  58. Nonprotein Amino Acids
  59. Would food and health-services benefit from a more intimate union
  60. Weathering of a soil glauconite in southern England
  61. Water-vapor calibration using salt hydrate transitions
  62. Water-use and tolerance of cyst-nematode attack in potatoes
  63. Water-movement in porous building-materials .3. A sorptivity test procedure for chemical injection damp proofing
  64. Virus-particles and double-stranded-rna in isolates of phialophora sp with lobed hyphopodia, phialophora-graminicola and gaeumannomyces-graminis var graminis
  65. Variation in 2 barley pathogens towards systemic fungicides
  66. The use of egg counts and suction trap samples to forecast the infestation of spring-sown field beans, vicia-faba, by the black bean aphid, aphis-fabae
  67. Use of c1q enzyme-linked immunosorbent-assay to detect plant-viruses and their serologically different strains
  68. Use of anthelmintics for cattle in England and Wales during 1978
  69. The use of anthelmintics for cattle in England and Wales during 1978
  70. Uptake and movement of chlormequat-C-14 chloride applied to leaves of barley and wheat
  71. Transcriptase activity associated with a type-2 double-stranded-rna mycovirus
  72. Theoretical and experimental relationships between soil adsorption, octanol-water partition-coefficients, water solubilities, bioconcentration factors, and the parachor
  73. Techniques for studying the infection of plants by vesicular-arbuscular mycorrhizal fungi under axenic conditions
  74. Techniques for preparation and examination of plant parasitic nematodes in the scanning electron-microscope
  75. Techniques for distributing non-fumigant nematicides in soil to control potato cyst-nematodes, globodera-rostochiensis and globodera-pallida
  76. Synthetic pheromones to attract honeybee (apis-mellifera) swarms
  77. Synthesis and X-ray crystal-structures of 3 isomeric macrobicyclic polyethers having similar melting-points and different complexing power for alkali-metal cations
  78. The synthesis and complexation of open-chain polyethers having various end groups
  79. Study of the behavior of several strains of conidiobolus-obscurus zygomycetes entomophthoraceae on the aphids acyrthosiphon-pisum and sitobion-avenae hom, aphididae
  80. Structure of the complex formed between ammonium picrate and 1,10-phenanthroline
  81. The structure of the 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6) bis(dimethyl sulfone) complex
  82. Structure of rel-([alpha]R),(1R,trans)-[alpha]-cyano-3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, non-insectidal components of cypermethrin
  83. Structure of a hydrazido(2-) complex of tungsten(V): trichlorobis(dimethylphenylphosphine)[phenylhydrazido(2-)]tungsten(V)
  84. A strain of Arracacha Virus B infecting Oca (Oxalis tuberosa: Oxalidaceae) in the Peruvian Andes
  85. The specification of experimental-designs to ANOVA programs - comment
  86. Spatial dependence and classification of the soil along a transect in northeast Scotland
  87. Sowing date - notes and recommendations
  88. Some speculations on the nature of the natural defense-mechanism of plants against virus-infection
  89. Some observations on earthworm populations in grassland soils
  90. Solitary bees that inhabit walls
  91. Soil segment overlap in character space and its implications for soil classification
  92. A simple and reliable method of estimating root length
  93. Similarity of Ribulose-1,5-bisphosphate carboxylases of isogenic diploid and tetraploid ryegrass (Lolium perenne L.) cultivars
  94. Separation of non-filamentous microorganisms from soil by density gradient centrifugation in percoll
  95. Selective isolation and enumeration of actinomycetes using rifampicin
  96. Selection criteria for the construction of efficient diagnostic keys
  97. Scaling of infiltration behavior in dissimilar porous materials
  98. A satellite double-stranded-rna in a virus from gaeumannomyces-graminis
  99. Routine production of axenic vesicular-arbuscular mycorrhizas
  100. Ribulose-1,5-bisphosphate carboxylase-oxygenase - how does it work - reply
  101. A review of statistical ideas relevant to intercropping research
  102. Responses of myzus-persicae (sulzer) (hemiptera, aphididae) to plants treated with fatty-acids
  103. The response of tensiometers embedded in saturated soil peds of low hydraulic conductivity
  104. Requirements of magnesium fertilizer by sugar-beet
  105. The relative abundance of the hymenopterous parasites attacking metopolophium-dirhodum (walker) and sitobion-avenae (f) (hemiptera, aphididae) on cereals during 1973-79 in southern England
  106. The relationship between light-trap and suction-trap catches of chrysoperla-carnea (stephens) (neuroptera, chrysopidae), and the adjustment of light-trap catches to allow for variation in moonlight
  107. Recent work with critical-point dried soils - reply
  108. Rapid spread by mites of ryegrass mosaic-virus from old sward to seedling ryegrass and its prevention by aldicarb
  109. A rapid and accurate method of aligning a crystal on a weissenberg goniometer
  110. A quantitative method for extracting resting spores of 2 nematode parasitic fungi, nematophthora-gynophila and verticillium-chlamydosporium, from soil
  111. The pyrethrins and related-compounds .25. Synthesis and insecticidal activity of conformationally restrained compounds related to 3-phenoxybenzyl esters
  112. Purification and some properties of tephrosia-symptomless virus
  113. Protoplasts in the invivo life-cycle of erynia-neoaphidis
  114. Prospects for improving plant establishment
  115. Properties of a filamentous virus of the honey bee (Apis mellifera)
  116. Properties of 13 viruses and virus variants obtained from 8 isolates of the wheat take-all fungus, gaeumannomyces-graminis var tritici
  117. Proline accumulation in a barley mutant resistant to trans-4-hydroxy-L-proline
  118. Problems in interpreting scanning electron-micrographs of plasmodiophora plasmodia
  119. Problems in countering resistance
  120. Preventing phosphorus losses during perchloric acid digestion of sodium bicarbonate soil extracts
  121. The prevalence of viruses of honey bees in Britain
  122. The presence of pathogenesis-related proteins in callus of xanthi-nc tobacco
  123. Preparation of green plant-material for liquid scintillation-counting
  124. Powdery mildew and its control
  125. Potassium retention and release in Rothamsted and Saxmundham soils
  126. Possible impact of cosmochemistry on terrestrial biology - historical introduction
  127. The polymorphism and structural homology of storage polypeptides (hordein) coded by the Hor-2 locus in barley (Hordeum vulgare L.)
  128. Plant-regeneration from shoot culture-derived protoplasts of tetraploid potato (solanum-tuberosum cv maris-bard)
  129. Plant-growth responses to vesicular-arbuscular mycorrhiza .12. Field inoculation responses of barley at 2 soil-p levels
  130. Phosphorus and carbon relationships in plants infected with vesicular-arbuscular mycorrhizal fungi
  131. Phosphate adsorption in allophanic soils
  132. Phenological and geographical relationships between catches of pea moth in sex-attractant traps
  133. Pest monitoring to aid insecticide use
  134. The pathogenesis-related proteins of tobacco - their induction by viruses in intact plants and their induction by chemicals in detached leaves
  135. Observations on relationships between infective juveniles of bovine lungworm, dictyocaulus-viviparus (nematoda, strongylida) and the fungi, pilobolus-kleinii and pilobolus-crystallinus (zygomycotina, zygomycetes)
  136. Observations on globodera-pallida and globodera-rostochiensis on early potatoes
  137. Novel 2-acycyclohexane-1,3-diones in the mandibular glands of lepidopteran larvae - kairomones of ephestia-kuehniella zeller
  138. Non-protein amino-acids of plants
  139. Nitrilase activity in clubroot diseased plants
  140. New weed hosts for the giant race of ditylenchus-dipsaci (kuhn) filipjev
  141. A new species of dysaphis borner from nepal (homoptera, aphidoidea)
  142. The nasonov pheromone of the honeybee apis-mellifera l (hymenoptera, apidae) .2. Bioassay of the components using foragers
  143. Nasonov pheromone of the honey bee, apis-mellifera l (hymenoptera, apidae) .3. Regulation of pheromone composition and production
  144. Movement of fluometuron, simazine, 36Cl− and 144Ce3+ in soil under field conditions: qualitative aspects
  145. Molecular-cloning and analysis of cdna sequences derived from polya+rna from barley endosperm - identification of b-hordein related clones
  146. Mode of action of hydroxypyrimidine fungicides
  147. The mode of action of ethionine foliar sprays against potato common scab (streptomyces-scabies)
  148. Microbiology of roots infected with the take-all fungus (gaeumannomyces-graminis var tritici) in phased sequences of winter-wheat
  149. Microbially bound phosphates in soils
  150. Methyl-substituted macrocyclic crown polyethers and their complexation
  151. Methods of producing perithecia of gaeumannomyces-graminis and their application to related fungi
  152. Methods for inoculating field crops with mycorrhizal fungi
  153. Maize endosperm proteins compared by sodium dodecyl-sulfate gel-electrophoresis and isoelectric-focusing
  154. The location of the enzymes of ammonia assimilation in root-nodules of phaseolus-vulgaris L.
  155. Localization and characterization of homoserine dehydrogenase isolated from barley and pea leaves
  156. Levels, distribution and chemical forms of trace-elements in food plants
  157. Laboratory application of preservatives to hay and the effects of irregular distribution on mold development
  158. The k-40 and bi-214 (from u-238) contents of Rothamsted soils determined by gamma spectrometry
  159. Invitro transcription of double-stranded-rna by virion-associated rna-polymerases of viruses from gaeumannomyces-graminis
  160. Interrelationship between nitrogen concentration in grain, grain-yield and added fertilizer nitrogen in wheat experiments of southeast England
  161. Interpretation of sperm development in nematodes
  162. The interaction between bactericidal chemicals and the wound-healing process of potato-tuber tissue
  163. The influence of soil treatments on the bacterial-degradation of diazinon and other organo-phosphorus insecticides
  164. Influence of plant interactions on vesicular-arbuscular mycorrhizal infections .2. Crop rotations and residual effects of non-host plants
  165. Infectivity of lesioned wheat root-tissue related to the presence of dehydrogenase enzymes in hyphae of gaeumannomyces-graminis var tritici in the lesions
  166. The incidence of gaeumannomyces-graminis var tritici and phialophora-radicicola var graminicola on wheat grown after different cropping sequences
  167. An improved small-scale unit for extracting leaf juice
  168. An improved open-topped chamber for pollution studies on crop growth
  169. An improved method for measuring soil respiration in the field
  170. Hydroxypyrimidine fungicides inhibit adenosine-deaminase in barley powdery mildew
  171. Host ranges of globodera species within solanum subgenus leptostemonum
  172. Hirschmanniella sp, an endo-parasitic nematode associated with miti-miti disease of taro corms in the Solomon-Islands
  173. Heterodera-mediterranea n-sp (nematoda, heteroderidae) on pistacia-lentiscus in southern italy
  174. A heavy metal-tolerant strain of a mycorrhizal fungus
  175. Hatching of potato cyst-nematodes (globodera-rostochiensis, globodera-pallida) in root exudates of solanum-vernei hybrids
  176. Hatching of globodera-rostochiensis in response to potato root diffusate persisting in soil
  177. Hatching mechanisms of nematodes
  178. Growth on oat-seedling agar of isolates of gaeumannomyces-graminis and some phialophora species from cereal roots
  179. Growth of spring barley under drought - crop development, photosynthesis, dry-matter accumulation and nutrient content
  180. Glutamine-metabolism in higher-plants
  181. Genetic-control of ethirimol resistance in a natural-population of erysiphe-graminis f-sp-hordei
  182. Fungus diseases on potato seed tubers planted in England and Wales, 1963-76
  183. Fungal parasites - a weapon against cyst nematodes
  184. Formation of microbial biomass during the decomposition of C-14 labelled ryegrass in soil
  185. Finding nitrogen-fixation genes
  186. Field plans - why the biometrician finds them useful
  187. Field desorption mass-spectrometry of complexes of sodium and potassium with macrocyclic polyethers
  188. Fertilizing for a rotation
  189. Fatty-acids as substrates and inhibitors of fungi from propionic-acid treated hay
  190. Factors determining the release of nasonov pheromone by honeybees at the hive entrance
  191. Factors affecting the sequential acquisition by danish houseflies (musca-domestica l) of resistance to organo-phosphorus insecticides
  192. Facilities for modeling linear and non-linear bioassay relationships in mlp
  193. The extraction and separation of barley glutelins and their relationship to other endosperm proteins
  194. Evidence for gene-for-gene relationships between resistance gene-H1 from Solanum-tuberosum ssp andigena and a gene in Globodera-rostochiensis, and between H-2 from solanum-multidissectum and a gene in Globodera-pallida
  195. Evaluation of the various components of the nasonov pheromone used by clustering honeybees
  196. Estimating parameters in quantitative bioassay
  197. Enhancement of polygalacturonase activity by potassium phosphate in liquid culture of phialophora-radicicola var radicicola
  198. Effects on dry-weight and nitrogen-content of grains of semi-dwarf and tall varieties of winter-wheat caused by decreasing the number of grains per ear
  199. Effects of soil application of benomyl against take-all (gaeumannomyces-graminis) and footrot diseases of wheat
  200. Effects of plant-protection chemicals on vesicular-arbuscular mycorrhizas
  201. The effects of irrigation, nitrogen-fertilizer and the control of pests and pathogens on spring-sown field beans (Vicia faba L.) and residual effects on 2 following winter-wheat crops
  202. Effects of ethionine and flurecols, applied to leaves, on clubroot of cabbage
  203. The effects of drought on barley - soil and plant water relations
  204. Effects of dose and attractant on interactions between pheromone traps for the pea moth, cydia-nigricana
  205. Effects of decreasing the number of grains in ears of cvs hobbit and maris huntsman winter-wheat
  206. Effects of covering potato crops with clear polyethylene film on spread of potato virus-y
  207. An effective lure for use in pheromone traps for monitoring pea moth, cydia-nigricana (f)
  208. The effect on wheat-grain growth of the removal or aba treatment of glumes and lemmas
  209. The effect of perforated polyethylene sheeting on the alighting behavior of aphids (hemiptera, aphididae) and their infestation of potato crops
  210. The effect of minimum cultivation on the incidence of take-all down the root profile of winter-wheat
  211. The effect of introducing aphid-pathogenic entomophthoraceae into field populations of aphis-fabae
  212. Effect of host plant-selection and temperature on the structure of root-nodules of red-clover (trifolium-pratense l)
  213. Effect of green manures on yield and nitrogen requirement of sugar-beet
  214. Ecology of mycorrhizae and mycorrhizal fungi
  215. Ecology of conidiobolus-obscurus (entomophthora-obscura) in soil
  216. The dual polyclave - an aid to more efficient identification
  217. Distributions of final digits in data
  218. Development of virology .5. Portraits of viruses - tobacco necrosis virus and its satellite virus
  219. Development of the crop
  220. The development of protein bodies in the storage tissues of seeds - subcellular separations of homogenates of barley, maize, and wheat endosperms and of pea cotyledons
  221. The determination of imazalil on potatoes and its use in controlling potato storage diseases
  222. Detection of starvation as the cause of death in honeybees, from thoracic glucose-levels
  223. Detection of ridge and furrow pattern by spectral-analysis of crop yield
  224. The design of optimal sampling schemes for local estimation and mapping of regionalized variables .2. Program and examples
  225. The design of optimal sampling schemes for local estimation and mapping of regionalized variables .1. Theory and method
  226. Deposition of particles liberated in gusts of wind
  227. Denitrification in a very acid tropical soil
  228. Dehydrochlorination of some organochlorine pesticides in freeze-dried egg and egg fat during storage
  229. Decreased severity of potato common scab after foliar sprays of 3,5-dichlorophenoxyacetic acid, a possible anti-pathogenic agent
  230. Darwin,charles and earthworms
  231. Dark respiration of several varieties of winter-wheat given different amounts of nitrogen-fertilizer
  232. The crystal-structures of 1,5,12,16,23,26,29,32,35-nonaoxa 133,14 - 5.5 orthocyclophane and its complex with rubidium picrate
  233. Crystal-structure studies of hydrazido(2-)quinolin-8-olato-complexes of molybdenum and tungsten
  234. Crystal-structure of 2 bridged macrobicyclic polyethers, 1,5,12,16,23,26,29-heptaoxa 73,14 5.5 orthocyclophane and 1,5,12,16,23,26,29,32-octaoxa 103,14 5.5 orthocyclophane
  235. The crystal-structure of 1,4,7,14,17,20,28,35-octaoxa 23,29.218,34 7.7 -orthocyclophane and its multihydrated complex with kcl
  236. Cross-linking of the Subunits of Potato Virus X with Di-imidates
  237. Crop protection chemicals - directions of future-development - introductory-remarks
  238. The correction of insitu tensiometer readings for overburden pressures in swelling soils
  239. Conventional and novel approaches to the improvement of the nutritional quality of cereal and legume seeds
  240. Control of potato diseases during growth and in store by fungicide seed treatment
  241. Contamination of vegetation with synthetic sex-attractant released from traps for the pea moth, cydia-nigricana
  242. Conidiobolus-obscurus in arable soil - a method for extracting and counting azygospores
  243. Complex-formation between guanidinium nitrate and 1,4,7,10,13,16-hexaoxacyclo-octadecane (18-crown-6) - crystal-structure of the hydrogen-bonded 2 - 1 complex
  244. The compatibility of the nitrification inhibitor dicyandiamide with injected anhydrous ammonia
  245. Compartmental modeling of photo-respiration and carbon metabolism of water stressed leaves
  246. A comparison of the organic matter, biomass, adenosine triphosphate and mineralizable nitrogen contents of ploughed and direct-drilled soils
  247. The classification, identification and nomenclature of agrobacteria - incorporating revised descriptions for each of agrobacterium-tumefaciens (smith and townsend) conn 1942, agrobacterium-rhizogenes (riker et al) conn 1942, and agrobacterium-rubi (hildebrand) starr and weiss 1943
  248. Chemicals for preventing molding in damp hay
  249. Carbonyl-complexes of niobium and tantalum and evidence of a niobium dinitrogen complex - the structure of carbonyldichlorocyclopentadienylbis(dimethylphenylphosphine)tantalum
  250. Calcium inhibitors and the hatching of globodera-rostochiensis
  251. Breeding of nodulated red-clover (trifolium-pratense) for high-yield
  252. Biology and behavior of the honeybee apis florea, and possibilities for beekeeping
  253. Badgers guilty
  254. Badger debate
  255. Bacterium-like organelles in the vesicular-arbuscular mycorrhizal fungus glomus-caledonius
  256. Attraction of honey bees to flowering plants by using synthetic nasonov pheromone
  257. Attractant lures for males of the pea moth,Cydia nigricana (F.) Containing (E)-10-dodecen-1-yl acetate and (E,E)-8,10-dodecadien-1-yl acetate
  258. The attachment of honeybee comb to sloping hive sides and side-bars of frames
  259. Analysis of field-weathered lures containing (E)-10-dodecen-1-yl acetate, a sex attractant for the pea moth,Cydia nigricana (F.)
  260. Agricultural use of lime
  261. Aerodynamic properties of field bean and potato crops
  262. 2 serologically unrelated viruses isolated from a phialophora sp
  263. Variation in chiasma distribution in inbred perennial ryegrass
  264. Optimal interpolation and isarithmic mapping of soil properties .4. Sampling strategy
  265. The development of forecasting systems for cereal aphid outbreaks in Europe
  266. The 'natural enemy ravine' in cereal aphid population dynamics: a consequence of predator activity or aphid biology?
  267. Effects of common scab Streptomyces scabies on potatoes
  268. The determination of ionic diffusion coefficients in field soils. I. Diffusion coefficients in sieved soils in relation water content and bulk density.
  269. Simulations of population models for cyst-nematodes: applications in agriculture.
  270. Phoridae (Diptera) from English pasture soils.