| Yields of the Field Experiments 1986 | 1 |
| Contents 1986 | 1 |
| Conventions 1986 | 7 |
| Harvest Areas for Cereals | 8 |
| 86/R/BK/1 Broadbalk - W. Wheat, Fallow, Potatoes | 9 |
| 86/R/HB/2 Hoosfield - S. Barley | 14 |
| 86/R/WF/3 Wheat and Fallow - W. Wheat | 18 |
| 86/R/WX/4 Exhaustion Land - S. Barley | 19 |
| 86/R/PG/5 Park Grass - Hay | 21 |
| 86/R/AG/6 Agdell - S. Barley Undersown Ley | 27 |
| 86/R/BN/7 Barnfield - Grass/CLOVER | 28 |
| 86/R/GC/8 Garden Clover - Red Clover | 32 |
| 86/R/SN/1 Rotation 1 - W. Wheat | 34 |
| 86/R/SN/2 Rotation II - W. Wheat | 39 |
| 86/R/RN/1 and 86/R/RN/2 Ley Arable - Old Grass, Leys, Wheat | 43 |
| 86/W/RN/3 Ley/ARABLE - Leys, S. Barley, W. Beans, W. Wheat | 48 |
| 86/W/RN/4 Market Garden - Clover | 57 |
| 86/R/RN/5 Arable Reference Plots - S. Barley, Ley, Potatoes, W. Wheat, Kale | 67 |
| 86/R/RN/8 Cultivation/WEEDKILLER - W. Barley | 72 |
| 86/W/RN/12 Organic Manuring - S. Oats, W. Rye, Ley | 74 |
| 86/W/RN/13 Intensive Cereals - Ley | 78 |
| 86/R/RN/17 Rates of P and K to the Subsoil - Potatoes, S. Barley, S. Beans, W. Wheat | 82 |
| 86/R/CS/10 and 86/W/CS/10 Long Term Liming - W. Triticale | 90 |
| 86/W/CS/34 Nematicides in Crop Sequence - Potatoes, W. Wheat, S. Barley | 93 |
| 86/W/CS/35 Nematicides Dosage - Potatoes | 100 |
| 86/R/CS/133 Control of Pathogens - Forage Maize | 101 |
| 86/R/CS/140 Chemical Reference Plots -s. Barley | 103 |
| 86/R/CS/212 Seasonal Effects of Take-all - S. Beans, W. Wheat | 107 |
| 86/W/CS/245 Minimum Cultivation and Deep Pk - W. Wheat, W. Barley | 109 |
| 86/R/CS/246 Effects of Subsoiling and Deep Pk - S. Barley | 121 |
| 86/R/CS/247 Organic Matter and Earthworm Inoculation - S. Barley | 123 |
| 86/W/CS/273 Intensive Potatoes - S. Barley, Potatoes | 124 |
| 86/W/CS/293 Nitrification Inhibitors - W. Wheat | 131 |
| 86/R/CS/298 Nematicide Sprays and Stem Nematode - Lucerne | 135 |
| 86/R/CS/299 Crops and Rhizoctonia - W. Barley | 139 |
| 86/R/CS/302 Eyespot Resistance to Mbc - W. Wheat | 142 |
| 86/R/CS/309 and 86/W/CS/309 Long-term Straw Incorporation - W. Wheat | 144 |
| 86/R/CS/311 Effects of Shallow Straw Incorporation - W. Wheat | 148 |
| 86/R/CS/312 Straw Decomposition - W. Wheat | 153 |
| 86/R/CS/314 Control of Stem Nematode - Lucerne | 155 |
| 86/W/CS/316 Varieties and Pcn Tolerance - Fallow | 160 |
| 86/R/CS/318 Nitrophosphates - Potatoes | 161 |
| 86/R/CS/319 Nitrophosphates - S. Barley | 164 |
| 86/R/CS/320 Comparison of Combinable Crops - W. Beans, W. Oats, W. Oilseed Rape, W. Peas, W. Wheat, S. Beans, S. Lupins, S. Peas, Sunflowers and Fallow | 166 |
| 86/S/CS/1 Factors Affecting Yield - W. Wheat | 169 |
| 86/R/WW/1 and 86/W/WW/1 Varieties - W. Wheat | 173 |
| 86/R/WW/3 Factors Affecting Tillering and Yield - W. Wheat | 181 |
| 86/R/WW/4 Factors Affecting Take-all - W. Wheat | 188 |
| 86/R/WW/5 Persistence of Aphicides - W. Wheat | 192 |
| 86/R/WW/6 N and Dcd - W. Wheat | 194 |
| 86/R/WW/7 Sowing Dates, Fungicide Times and Eyespot - W. Wheat | 197 |
| 86/R/WW/8 Burning and Eyespot - W. Wheat | 200 |
| 86/R/WW/9 Electrostatic Sprayers and Weed Control - W. Wheat | 202 |
| 86/R/WW/17 Foliar-applied Urea - W. Wheat | 204 |
| 86/R/B/1 Factors Limiting Yield - W. Barley | 206 |
| 86/W/B/1 Autumn Disease Control - W. Barley | 217 |
| 86/R/B/2 Sowing Dates, Aphids and Bydv - W. Barley | 225 |
| 86/R/B/3 Anti-feedants and Bydv - W. Barley | 227 |
| 86/R/B/5 and 86/W/B/5 Varieties and N - S. Barley | 229 |
| 86/R/B/6 Nitrophosphates - S. Barley | 232 |
| 86/R/BE/1 Control of Rust - W. Beans | 234 |
| 86/R/BE/2 Sowing Methods, Dates and Seed Rates - W. Beans | 236 |
| 86/R/BE/3 Varieties - W. Beans | 239 |
| 86/R/BE/6 Varieties, Row Spacing and Plant Health - S. Beans | 241 |
| 86/R/BE/8 Anti-feedants - S. Beans | 244 |
| 86/W/LP/2 Varieties, Sowing Dates and Plant Health - Lupins | 246 |
| 86/R/LP/4 Desiccants and Fungicides - Lupins | 250 |
| 86/R/LP/5 Growth Regulators - Lupins | 253 |
| 86/R/PE/1 Effects of Pea Seed-borne Mosaic Virus - Peas | 256 |
| 86/R/RA/1 Factors Limiting Yield - W. Oilseed Rape | 258 |
| 86/R/RA/3 Varieties and Fungicides - W. Oilseed Rape | 266 |
| 86/R/RA/4 Growth Regulators and Fungicides - W. Oilseed Rape | 271 |
| 86/R/RA/5 Precision Sowing - W. Oilseed Rape | 277 |
| 86/R/RA/6 Straw Treatments Before Sowing - W. Oilseed Rape | 281 |
| 86/R/RA/9 Forms and Times of N - W. Oilseed Rape | 285 |
| 86/R/SU/1 Varieties - Sunflowers | 287 |
| 86/R/SU/2 Row Spacing and Seed Rates - Sunflowers | 289 |
| 86/R/SU/3 Fungicides and Botrytis - Sunflowers | 291 |
| 86/R/MA/1 Varieties, Sowing Dates and Polythene Covers - Maize | 293 |
| 86/R/CA/1 Anti-feedants - Cabbages | 296 |
| 86/R/P/1 Varieties - Potatoes | 298 |
| 86/R/P/2 Seed Health Progeny - Potatoes | 301 |
| 86/W/P/2 Varieties and Pcn - Potatoes | 308 |
| 86/R/P/3 Maintenance of Seed Health - Potatoes | 311 |
| 86/W/P/3 Control of Globodera Pallida - Potatoes | 317 |
| 86/R/P/4 Varieties and Stem Canker - Potatoes | 320 |
| 86/R/M/1 and 86/W/M/1 Triticale and Disease - Mixed 1 | 329 |
| Meteorological Records 1986 - Rothamsted | 332 |
| Meteorological Records 1986 - Woburn | 333 |
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