1. Interference between rows and between plants within rows of a wheat crop, and its effects on growth and yield of differently-spaced rows
  2. Isobutylidene diurea and other nitrogen fertilizers for seedlings and transplants ofPicea sitchensis in two English forest nurseries
  3. Carbohydrates in hay on self‐heating to ignition
  4. The measurement of arthropod numbers and activity by sampling with sweep-nets and traps
  5. The extraction from soil of small arthropods by the dry-funnel method
  6. The place of sample survey in crop loss estimation
  7. Genetical changes in Rhizobium bacteria and in their bacteriophages during coexistence
  8. Effects of amino acids on the reproduction of Heterodera rostochiensis
  9. Grain yield and incidence of take‐all (Ophiobolus graminis Sacc.) in wheat grown in different crop sequences
  10. Oxidative metabolism of pyrethrins in mammals
  11. Effects of soil fumigation on soil nitrogen and on disease incidence in winter wheat
  12. Interactions between Heterodera rostochiensis Woll. and Verticillium dahliae Kelb. on potatoes and the effect of CCC on both
  13. Defective Strains and Phenotypic Mixing
  14. Population changes and development of Meloidogyne naasi in the field
  15. Epidemiology and control of weevil-transmitted viruses in field beans
  16. Potassium for grassland : present use and future possibilities
  17. Value and valuation of fertilizer residues
  18. Fertiliser practice in England and Wales: a new series of surveys
  19. Factors defining spontaneous heating and ignition of hay
  20. Loess in the soils of north Norfolk
  21. Geochemistry, micropalaeontology and origin of the middle Lias ironstones in northeast Yorkshire (Great Britain)
  22. Postglacial soil formation in the loess of Pegwell bay, Kent (England)
  23. Oxidative metabolism of pyrethrins in mammals
  24. Disk electrophoresis of proteins of Heterodera species and pathotypes of Heterodera rostochiensis
  25. A comparison of soils on coal measures in SW Ireland and SE Wales
  26. Oxidative dimerisations of natural rethrolones and related compounds with manganese dioxide
  27. Effects of nitrogen fertilizer, plant population and irrigation on sugar beet: I. Yields
  28. Fertilizer requirements of sugar beet on peaty mineral and organic mineral soils
  29. The effects of soil fumigation and nitrogen fertilizers on nematodes and sugar beet in sandy soils
  30. Predicting the amount of nitrogen fertiliser needed for sugar‐beet by soil analysis
  31. Some effects of partial sterilization on mineral nitrogen in a light soil
  32. Prediction of the fertiliser needs of sugar‐beet grown on fen peat soils
  33. Effects of nitrogen fertilizer, plant population and irrigation on sugar beet: III. Water consumption
  34. An analysis of the effects of nutrient supply on the growth of potato crops
  35. Uptake of magnesium and other fertilizer elements by sugar beet grown on sandy soils
  36. Changes in sugar beet husbandry and some effects on pests and their damage
  37. Changes in organo‐chlorine usage on sugar beet, and progress in the replacement of dieldrin seed treatment
  38. Entomophthora infecting the cereal aphids Metapolophium dirhodum and Sitobion avenae
  39. Scanning electron microscopy of plant roots
  40. Organo‐mercury fungicide treatment of sugar‐beet seed
  41. Amino acid composition and In Vitro digestibility of some protein fractions from three species of leaves of various ages
  42. The site of action of pyrethrin I in the nervous system of the cockroach Periplaneta Americana
  43. The spread of topically‐applied pyrethrin I from the cuticle to the central nervous system of the cockroach Periplaneta americana
  44. Field-trials of anti-capsid insecticides on farmers' cocoa on Ghana, 1956-60. 2, Effects of different insecticides compared by counting capsid-counting compared with counting the percentage of newly damaged treses
  45. The petrography and origin of deposits filling solution pipes in the Chalk near South Mimms, Hertfordshire
  46. The soils of the Malham Tarn area
  47. Behaviour of Ophiobolus graminis on slides buried in soil in the presence or absence of wheat seedlings
  48. Uranium content of peaty soils rich in molybdenum and selenium from Co. Limerick, Eire
  49. The structure, composition and origin of the subcrystalline layer in some species of the genus Heterodera
  50. Pepper veinal mottle virus‐a new member of the potato virus Y group from peppers (Capsicum annuum L. and C. frutescens L.) in Ghana
  51. Viruses infecting cacao
  52. The relationship between soil phosphorus and response by sugar beet to phosphate fertilizer on mineral soils
  53. Residual phosphate experiments on experimental husbandry farms
  54. Migration records 1966 and 1967
  55. Resistance to organophosphorus insecticides in the SKA strain of houseflies (Musca domestica)
  56. Metabolism of 3‐chloro‐4‐methoxyaniline and some N‐acyl derivatives in soil
  57. O-2-acetyl-6-methyl-pyrimidin-4-yl o, o-diethyl phosphorothioate - a new degradation product diazinon
  58. The control of insect-transmitted viruses of cereals
  59. The mobilization of trace elements by aerobically decomposing plant material under simulated soil conditions
  60. Some obstacles to innovation
  61. Selection for increased nitrogen fixation in red clover
  62. Perspectives in biological nitrogen fixation
  63. Experiments on nitrogen fixation by nodulated lucerne
  64. Lunar cycles in the distribution and abundance of airborne insects in the equatorial highlands of East Africa
  65. Effects of plant density and nitrogen fertilizer on growth and yield of short varieties of wheat derived from Norin 10
  66. Fertilisers amd society - Seventh Francis new memorial lecture
  67. Thermoactinomyces sacchari sp.nov., a Thermophilic Actinomycete Causing Bagassosis
  68. The microbiology of moist barley storage in unsealed silos
  69. Endospore formation and germination in a new Thermoactinomyces species
  70. Fixation and electron microscopy of the Rothamsted culture of henbane mosaic virus
  71. European wheat striate mosaic disease in 1970
  72. Possible wind transport of coffee leaf rust across the Atlantic Ocean
  73. Bromine in wheat grown on soil fumigated with methyl bromide
  74. Quantity‐intensity relationships for labile sodium in field soils
  75. Effects of magnesium on cereals, potatoes and leys grown on the 'continuous cereals' site at Woburn
  76. Controlling soil pH with different N-fertilizers in experiments with ryegrass in pots
  77. The chloride balance in a fertiliser experiment on sandy soil
  78. The Behaviour of Plants in Various Gas Mixtures
  79. Comparison of Natural and Artificial Sources of Light
  80. Statistical methods of comparing different multivariate analyses of the same data
  81. Internal data structures
  82. A General Coefficient of Similarity and Some of Its Properties
  83. Inhibition of nitrification in soil by carbon disulphide from rubber bungs
  84. An Investigation on the Direct Effect of Dimethoate and Demeton-S-Methyl on the Yield and Quality of Field Beans
  85. Evaluation of phosphate fertilizers. III. Immediate and residual values of potassium metaphosphate and magnesium ammonium phosphate for potatoes, radishes, barley and ryegrass
  86. Residual value of phosphate fertilizers on neutral and calcareous soils
  87. Pathotypes in perspective
  88. The structure of the females of the round‐cyst nematodes
  89. Electrophoresis and morphometrics of the round-cyst nematodes
  90. The round-cyst species of Heterodera as a group
  91. Electrophoresis of protein from the different populations of the postato cyst nematode
  92. The distribution of eggs, larvae and plants within crops attacked by wheat bulb fly Leptohylemyia coarctata (Fall.)
  93. Potassium residues in soils from experiments at Rothamsted and Woburn
  94. Seed production of Agropyron epens (L.) Beauv in arable crops in England and Wales in 1969
  95. A preliminary study of the agronomic factors affecting the yield of extractable leaf protein
  96. Production and use of leaf protein
  97. Nematicides and the soil fauna
  98. The symptoms of attack by swede midge (Contarinia nasturtii) and effects on the yield of swedes
  99. Control of wireworms with organophosphorus and carbamate insecticides
  100. Wilks's criterion: A measure for comparing the value of general purpose soil classifications
  101. Honey-bee viruses
  102. Honey bee paralysis : retrospect and prospect : A lecture given to the Central Association of Bee-keepers on the 10th February 1971
  103. Potassium in soils under different cropping systems:1. Behaviour of K remaining in soils from classical and rotation experiments at Rothamsted and Woburn and evaluation of methods of measuring soil potassium
  104. Input/Output in statistical programming
  105. Statistical computing and computer languages
  106. Algorithm AS 43: Variable Format in Fortran
  107. The mating behaviour of the honeybee (Apis mellifera L.)
  108. Insecticidal activity of the pyrethrins and related compounds IV.—Essential features for insecticidal activity in chrysanthemates and related cyclopropane esters
  109. The pyrethrins and related compounds. Part XI. Synthesis of insecticidal esters of 4-hydroxycyclopent-2-enones (nor-rethrins)
  110. The pyrethrins and related compounds. Part XII. 5-Substituted 3-furoates and 3-thenoates, intermediates for synthesis of insecticidal esters
  111. The pyrethrins and related compounds. XIII. Insecticidal methyl‐, alkenyl and benzyl‐substituted furfuryl and furylmethyl chrysanthemates
  112. Statistics in Biology .2. - Bliss, C. I.
  113. Seeds of change - green revolution and development in 1970s - brown,lr
  114. Biosphere
  115. Basis of automatic classification - french - lerman,ic
  116. The algebraic basis of classical multivariate methods
  117. Some factors affecting the activities of dinitrophenol fungicides. II.—Use of g.l.c. partition data in studies of chemical structure/fungicidal activity against powdery mildew
  118. Fungicidal activity and chemical constitution. XVIII. The activity of 4-(1-cyclo-, 1-iso- and 1-n-propylalkyl)-2, 6-dinitrophenols against powdery mildews
  119. Studies on decomposition of c14 labelled organic matter in soil
  120. A comparison of liveweight gains of beef cattle with values predicted from energy intakes measured as starch equivalent or metabolisable energy
  121. The transport of potassium to ryegrass roots in soils with and without added potassium
  122. Potassium in soils under different cropping systems. 2. The effects of cropping systems on the retention by the soils of added K not used by crops