| Yields of the Field Experiments 1983 | 1 |
| Contents 1983 | 3 |
| Conventions 1983 | 7 |
| Harvest Areas for Cereals | 8 |
| Table of Means | 8 |
| Experiments - Classicals | 9 |
| 83/R/BK/1 Broadbalk - W. Wheat, Potatoes | 9 |
| 83/R/HB/2 Hoosfield - S. Barley | 13 |
| 83/R/WF/3 Wheat and Fallow - W. Wheat | 17 |
| 83/R/EX/4 Exhaustion Land - S. Barley | 18 |
| 83/R/PG/5 Park Grass - Old Grass | 20 |
| 83/R/AG/6 Agdell - W. Wheat | 25 |
| 83/R/BN/7 Barnfield - Ryegrass | 28 |
| 83/R/GC/8 Garden Clover - Clover | 32 |
| 83/S/RN/1 Rotation I - Grass, W. Beans, W. Wheat | 34 |
| 83/S/RN/2 Rotation II - W. Wheat | 42 |
| Rotations | 46 |
| 83/R/RN/1 and 83/R/RN/2 Ley Arable - Old Grass, Leys, Sugar Beet, W. Wheat | 46 |
| 83/W/RN/3 Ley/ARABLE - Leys, S. Barley, S. Beans, W. Wheat | 61 |
| 83/W/RN/4 Market Garden - Red Beet, Carrots, S. Barley | 67 |
| 83/R/RN/5 Arable Reference Plots - W. Barley, Ley, Potatoes, W. Wheat, W. Oats, Permanent Grass | 71 |
| 83/R/RN/8 Cultivation/WEEDKILLER - W. Barley | 76 |
| 83/W/RN/12 Organic Manuring - Sugar Beet, W. Wheat, Ley | 80 |
| 83/W/RN/13 Intensive Cereals - W. Wheat, Ley | 85 |
| 83/W/RN/16 Effects of Deep P K - S. Barley | 87 |
| 83/R/RN/17 Rates of P and K to the Subsoil - S. Beans, W. Wheat, Potatoes, S. Barley | 89 |
| Crop Sequences | 96 |
| 83/R/CS/10 and 83/W/CS/10 Long-term Liming - Potatoes | 96 |
| 83/R/CS/13 N Levels to Old Grass - Old Grass | 100 |
| 83/W/CS/34 Nematicides in Crop Sequence - Potatoes, W. Wheat, S. Barley | 103 |
| 83/W/CS/35 Nematicides Dosage - Potatoes, S. Barley | 110 |
| 83/W/CS/66 Dazomet and Nitrogen - Maize | 119 |
| 83/W/CS/99 Effects of Breaks on Take-all - S. Barley, S. Wheat | 121 |
| 83/R/CS/133 Control of Pathogens - Maize | 124 |
| 83/R/CS/140 Chemical Reference Plots - S. Barley | 126 |
| 83/R/CS/212 Seasonal Effects of Take-all - S. Beans, W. Wheat | 130 |
| 83/R/CS/216 and 83/W/CS/216 Effects of Subsoiling and Deep P K - S. Barley | 132 |
| 83/W/CS/245 Minimum Cultivation and Deep P K - W. Wheat, W. Barley | 135 |
| 83/R/CS/246 Effects of Subsoiling and Deep P K- S. Barley | 147 |
| 83/R/CS/247 Organic Matter and Earthworm Inoculation - W. Wheat | 149 |
| 83/R/CS/261 Benomyl and Take-all - W. Wheat | 151 |
| 83/R/CS/271 Aphid Control by Natural Enemies - W. Wheat, Ryegrass | 153 |
| 83/R/CS/272 Nitrification Inhibitors - Ryegrass | 155 |
| 83/W/CS/273 Intensive Potatoes - Potatoes, S. Barley, | 161 |
| 83/R/CS/279 Nematicides and Stem Nematodes - Lucerne | 165 |
| 83/R/CS/280 Rhizobium Strains - Lucerne and Melilotus alba | 174 |
| 83/W/CS/284 Varieties and Pcn Tolerance - Potatoes | 176 |
| 83/R/CS/285 Triadimefon Study - S. Barley | 177 |
| 83/W/CS/293 Nitrification Inhibitors - W. Oats | 179 |
| 83/R/CS/294 Aldicarb and Stem Nematode - S. Oats | 183 |
| 83/W/CS/295 Effects of Aldicarb and Benomyl - Maize | 185 |
| 83/R/CS/298 Nematicide Sprays and Stem Nematode - Lucerne | 187 |
| Annuals - Winter Wheat | 189 |
| 85/S/CS/1 Factors Affecting Yield - W. Wheat | 189 |
| 83/R/WW/1 and 83/W/WW/1 Varieties - W. Wheat | 197 |
| 83/R/WW/2 Growth and Yield on a Contrasted Site - W. Wheat | 202 |
| 83/W/WW/2 Growth and Yield on Contrasted Sites - W. Wheat | 205 |
| 83/R/WW/3 Factors Limiting Yield - W. Wheat | 212 |
| 83/R/WW/4 Seed Rates and Divided N Dressings - W. Wheat | 229 |
| 83/R/WW/6 All Purpose Electrostatic Spraying - W. Wheat | 232 |
| 83/R/WW/7 Nuarimol and Take-all - W. Wheat | 234 |
| 83/R/WW/8 Aphid Alarm Pheromone and Bydv - W. Wheat | 236 |
| 83/R/WW/9 Erynia, Pirimicarb and Aphid Control - W. Wheat | 238 |
| 83/R/WW/10 Erynia and Aphid Control in Cages - W. Wheat | 240 |
| Barley | 242 |
| 83/R/B/1 Factors Limiting Yield - W. Barley | 242 |
| 83/W/B/1 Mildew Study - W. Barley | 251 |
| 83/R/B/4 and 83/W/B/4 Varieties and N - S. Barley | 257 |
| 83/R/B/5 Sowing Dates and Insects - S. Barley | 260 |
| 83/W/B/5 Sowing Dates and Insects - S. Barley | 262 |
| 83/R/B/6 Mildew Sensitivity - S. Barley | 264 |
| 83/R/B/7 Plot Sizes and Mildew Spread - S. Barley | 266 |
| 83/R/B/8 Interference Between Plots - S. Barley | 268 |
| 83/R/B/9 Electrostatic Spraying and Mildew - S. Barley | 270 |
| Field Beans | 272 |
| 83/R/BE/1 Effects of Pests and Pathogens - W. Beans | 272 |
| 83/R/BE/2 Control of Chocolate Spot - W. Beans | 274 |
| 83/R/BE/3 Control of Sitona - W. Beans | 276 |
| 83/R/BE/4 All Purpose Electrostatic Spraying - W. Beans | 278 |
| 83/R/BE/5 Seed Dressings - W. Beans | 280 |
| 83/R/BE/6 Varieties - W. Beans | 282 |
| 83/R/BE/8 Control of Stem Nematode - W. Beans | 284 |
| 83/R/BE/9 Effects of Pests and Pathogens - S. Beans | 286 |
| 83/R/BE/10 Control of Sitona - S. Beans | 288 |
| 83/R/BE/11 Control of Pratylenchus - S. Beans | 290 |
| 83/R/BE/12 Row Spacing and Methods of Applying Phorate - S. Beans | 292 |
| 83/R/BE/13 Times of Applying Erynia - S. Beans | 294 |
| 83/R/BE/14 Varieties - S. Beans | 296 |
| 83/R/BE/15 Control of Rust - S. Beans | 298 |
| 83/R/BE/16 Seed Rates and Plant Health - S. Beans | 300 |
| 83/R/BE/17 Control of Stem Nematode - S. Beans | 302 |
| 83/R/BE/18 Permethrin and Alarm Pheromone - S. Beans | 304 |
| 83/R/PE/1 Control of Pests and Diseases - Peas | 306 |
| 83/R/FE/1 N, Rhizobium and Pest Control - Fenugreek | 308 |
| Winter Oilseed Rape | 310 |
| 83/R/RA/1 Mustard Oils and Light Leaf Spot - W. Oilseed Rape | 310 |
| 83/R/RA/4 Control of Pests and Diseases - W. Oilseed Rape | 312 |
| 83/R/P/1 Varieties and Stem Canker - Potatoes | 314 |
| 83/R/SW/1 Electrostatic Spraying and Mildew - Swedes | 318 |
| 83/W/G/1 Fluid Drilling and Nematicides - Grass | 320 |
| 83/E/1 Meteorological Records 1983 - Rothamsted | 323 |
| 83/E/1 Meteorological Records 1983 - Woburn and Saxmundham | 324 |
| Conversion Factors | 325 |
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