| Yields of the Field Experiments 1979 | 1 |
| Contents 1979 | 3 |
| Conventions 1979 | 7 |
| Harvest Areas for Cereals | 8 |
| Table of Means | 8 |
| Experiments - Classicals | 9 |
| 79/R/BK/1 Broadbalk - Wheat, Potatoes | 9 |
| 78/R/HB/2 Hoosfield - Barley | 13 |
| 79/R/WF/3 Wheat and Fallow - Wheat | 17 |
| 79/R/EX/4 Exhaustion Land - Barley | 18 |
| 79/R/PG/5 Park Grass - Old Grass | 20 |
| 79/R/AG/6 Agdell - Ryegrass, Beans | 25 |
| 78/R/BN/7 Barnfield - Ryegrass | 28 |
| 79/R/GC/8 Garden Clover - Clover | 31 |
| 79/S/RN/1 Rotation I - Grass, Grass/CLOVER, Beans, Wheat, W. Barley | 33 |
| 79/S/RN/2 Rotation II - Wheat, Barley | 39 |
| Rotations | 45 |
| 79/R/RN/1 and 79/R/RN/2 Ley Arable - Old Grass, Leys, Potatoes, Wheat, Beans, Oats, Barley | 45 |
| 79/W/RN/3 Ley/ARABLE - Leys, Barley, Oats , Wheat | 56 |
| 79/W/RN/4 Market Garden - Ryegrass | 61 |
| 79/R/RN/5 Arable Reference Plots - Barley, Ley, Potatoes, Wheat | 62 |
| 79/W/RN/6 Arable Reference Plots - Oats, Sugar Beet, Barley, Ley, Potatoes, Permanent Grass | 67 |
| 79/R/RN/7 Residual Phosphate - Ley, Wheat | 71 |
| 79/R/RN/8 Cultivation/WEEDKILLER - Barley | 76 |
| 79/W/RN/12 Organic Manuring - Wheat, Sugar Beet, Ley | 79 |
| 79/W/RN/13 Intensive Cereals - Wheat, Barley | 84 |
| 79/W/RN/14 Long-term Phosphate - Ley | 88 |
| 79/W/RN/16 Effects of Deep P K - Barley | 91 |
| Crop Sequences | 93 |
| 79/R/CS/10 and 79/W/CS/10 Long-term Liming - Fallow | 93 |
| 79/W/CS/11 Soil Structure - Wheat | 94 |
| 79/R/CS/13 N Levels to Old Grass - Old Grass | 96 |
| 79/R/CS/24 P K and Take-all - Wheat | 99 |
| 79/W/CS/34 Nematicides in Crop Sequence - Potatoes, Wheat, Barley | 102 |
| 79/W/CS/35 Nematicides Dosage - Potatoes, Wheat | 109 |
| 79/R/CS/41 Cultivations and Soil Invertebrates - Old Grass, New Grass | 116 |
| 79/W/CS/66 Dazomet and Nitrogen - Maize | 119 |
| 79/W/CS/99 Effects of Breaks on Take-all - Barley, Oats, Beans | 121 |
| 79/R/CS/130 Effects of Earthworm Inoculation - Ley | 123 |
| 79/R/CS/131 Effects of Earthworm Destruction - Old Grass | 126 |
| 79/R/CS/133 Control of Pathogens - Maize | 129 |
| 79/R/CS/140 Chemical Reference Plots - Barley | 131 |
| 79/R/CS/156 Leatherjacket Study - Old Grass | 134 |
| 79/R/CS/161 Injected N - Old Grass | 137 |
| 79/R/CS/165 Sclerotinia Control - Red and White Clover | 159 |
| 79/W/CS/174 Sowing Dates and Ccn - Oats | 164 |
| 79/W/CS/181 Green Manure - Barley, Potatoes | 173 |
| 79/R/CS/200 and 79/W/CS/200 Factors Affecting Yield - Ryegrass, Clover, Lucerne | 177 |
| 79/R/CS/201 Factors Affecting Yield - Wheat | 194 |
| 79/R/CS/202 Effects of Phialophora - Wheat | 204 |
| 79/R/CS/203 Species Mixtures and Phialophora - Wheat | 206 |
| 79/R/CS/204 Clover Varieties in Grass/CLOVER Mixtures - Ryegrass, Clover | 209 |
| 79/R/CS/211 Factors Affecting Eyespot - Wheat | 219 |
| 79/R/CS/212 Seasonal Effects of Take-all - Beans, Wheat | 222 |
| 79/R/CS/216 and 79/W/CS/216 Effects of Subsoiling and Deep P K - Beans | 224 |
| 79/R/CS/223 Late N - Wheat | 226 |
| 79/R/CS/232 Aqueous Urea and Nitrification Inhibitors - Ley | 228 |
| 79/W/CS/239 Late N - Potatoes | 231 |
| 79/R/CS/240 Effects of Mycorrhiza on Response to P - Potatoes, Leeks | 234 |
| 79/R/CS/241 Pesticides and Slot-seeding - Ryegrass | 236 |
| 79/S/CS/1 Fungicides, N and Growth Regulator - W. Barley | 241 |
| Annuals - Wheat | 244 |
| 79/R/WW/1 and 79/W/WW/1 Varieties and N - W. Wheat | 244 |
| 79/R/WW/2 and 79/W/WW/2 Aqueous N and Nitrification Inhibitors - W. Wheat | 248 |
| 79/R/WW/3 Factors Limiting Yield - W. Wheat | 254 |
| 79/W/WW/3 Growth and Yield on a Contrasted Site - W. Wheat | 266 |
| 79/R/WW/4 Seed Rates and Divided N Dressings - W. Wheat | 271 |
| 79/R/WW/5 Fungicides - W. Wheat | 273 |
| 79/R/WW/6 Effects of Septoria - W. Wheat | 275 |
| 79/R/WW/7 Effects of Sulphur - W. Wheat | 277 |
| 79/R/WW/8 Integrated Pest Control - W. Wheat | 279 |
| 79/R/WW/9 Parasites and Predators of Insect Pests - W. Wheat | 281 |
| 79/S/WW/1 Rates and Times of N and Fungicide - W. Wheat | 283 |
| 79/R/WS/1 Fungicides and Grain Microflora - S. Wheat | 287 |
| Barley | 289 |
| 79/R/B/1 Sowing Dates, Mildew Control and Growth Study - Barley | 289 |
| 79/W/B/2 Winter and Spring Barley Mildew Sensitivity to Ethirimol - Barley | 292 |
| 79/R/B/5 N and Growth Regulator - Barley | 295 |
| 79/R/B/6 Times of Applying Tridemorph and Demeton-s-methyl - Barley | 297 |
| 79/R/B/7 and 79/W/B/7 Varieties and N - Barley | 299 |
| 79/R/B/8 and 79/W/B/8 Pythium Control - Barley | 302 |
| 79/R/B/9 Sowing Dates and Pathogen Control - Barley | 305 |
| 79/R/B/10 Mildew Control in a Serially Balanced Design - Barley | 309 |
| 79/R/B/11 Controlled Drop Application of Tridemorph - Barley | 311 |
| 79/R/B/12 N and Mildew - Barley | 313 |
| 79/R/B/13 Mixed Varieties and Mildew - Barley | 315 |
| 79/R/B/21 Drills and Methods of Applying Fertiliser - Barley | 317 |
| Beans | 319 |
| 79/R/BE/1 Control of Chocolate Spot - Beans | 319 |
| 79/R/BE/2 Control of Sitona - Beans | 321 |
| 79/R/BE/5 Factors Affecting Yield - Beans | 323 |
| 79/R/BE/6 N and Pathogen Control - Beans | 331 |
| 79/R/BE/8 Foliar Nutrition - Beans | 333 |
| 79/R/BE/9 Control of Sitona - Beans | 335 |
| 79/R/BE/10 Times of Applying Permethrin - Beans | 336 |
| 79/R/BE/11 Pyrethroids and Sitona - Beans | 338 |
| 79/R/BE/12 Comparison of Sprayers - Beans | 339 |
| 79/R/BE/13 Comparison of Fungicides - Beans | 341 |
| 79/R/BE/14 Red Tick Lines - Beans | 344 |
| 79/R/BE/15 Effects of Vicia Cryptic Virus - Beans | 346 |
| 79/R/PE/1 and 79/W/PE/1 Control of Pathogens - Peas | 348 |
| 79/R/FE/1 N and Rhizobium - Fenugreek | 353 |
| 79/R/MA/1 Rates and Times of N - Maize | 355 |
| 79/R/P/4 and 79/W/P/4 Seed Stocks and Times of Applying Fungicides - Potatoes | 357 |
| 79/R/P/6 Effects of Spacing and Lodging - Potatoes | 365 |
| 79/R/G/1 Liquid Fertiliser and Nitrification Inhibitors - Grass | 368 |
| 79/E/1 Meteorological Records 1979 - Rothamsted | 373 |
| 79/E/1 Meteorological Records 1979 - Woburn and Saxmundham | 374 |
| Conversion Factors | 375 |
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